id	sid	tid	token	lemma	pos
3335	1	1	88	88	CD
3335	1	2	INFORMATION	information	NN
3335	1	3	TECHNOLOGY	technology	NN
3335	1	4	AND	and	CC
3335	1	5	LIBRARIES	LIBRARIES	NNP
3335	1	6	|	|	NNP
3335	1	7	JUNE	JUNE	NNP
3335	1	8	2006	2006	CD
3335	1	9	Article	Article	NNP
3335	1	10	Title	title	NN
3335	1	11	:	:	:
3335	1	12	subtitle	subtitle	VB
3335	1	13	in	in	IN
3335	1	14	same	same	JJ
3335	1	15	font	font	NN
3335	1	16	Author	author	NN
3335	1	17	Name	Name	NNP
3335	1	18	and	and	CC
3335	1	19	Second	Second	NNP
3335	1	20	Author	author	NN
3335	1	21	The	the	DT
3335	1	22	concept	concept	NN
3335	1	23	of	of	IN
3335	1	24	digital	digital	JJ
3335	1	25	libraries	library	NNS
3335	1	26	is	be	VBZ
3335	1	27	familiar	familiar	JJ
3335	1	28	to	to	IN
3335	1	29	both	both	DT
3335	1	30	librar-	librar-	JJ
3335	1	31	ians	ian	NNS
3335	1	32	and	and	CC
3335	1	33	library	library	JJ
3335	1	34	patrons	patron	NNS
3335	1	35	today	today	NN
3335	1	36	.	.	.
3335	2	1	These	these	DT
3335	2	2	new	new	JJ
3335	2	3	libraries	library	NNS
3335	2	4	have	have	VBP
3335	2	5	broken	break	VBN
3335	2	6	the	the	DT
3335	2	7	limits	limit	NNS
3335	2	8	of	of	IN
3335	2	9	space	space	NN
3335	2	10	and	and	CC
3335	2	11	distance	distance	NN
3335	2	12	by	by	IN
3335	2	13	delivering	deliver	VBG
3335	2	14	information	information	NN
3335	2	15	in	in	IN
3335	2	16	various	various	JJ
3335	2	17	formats	format	NNS
3335	2	18	via	via	IN
3335	2	19	the	the	DT
3335	2	20	Internet	internet	NN
3335	2	21	.	.	.
3335	3	1	Since	since	IN
3335	3	2	most	most	JJS
3335	3	3	digital	digital	JJ
3335	3	4	libraries	library	NNS
3335	3	5	contain	contain	VBP
3335	3	6	a	a	DT
3335	3	7	colossal	colossal	JJ
3335	3	8	amount	amount	NN
3335	3	9	of	of	IN
3335	3	10	infor-	infor-	NNP
3335	3	11	mation	mation	NN
3335	3	12	,	,	,
3335	3	13	it	-PRON-	PRP
3335	3	14	is	be	VBZ
3335	3	15	critical	critical	JJ
3335	3	16	to	to	TO
3335	3	17	design	design	VB
3335	3	18	more	more	JJR
3335	3	19	user	user	NN
3335	3	20	-	-	HYPH
3335	3	21	friendly	friendly	JJ
3335	3	22	inter-	inter-	NN
3335	3	23	faces	face	NNS
3335	3	24	to	to	TO
3335	3	25	explore	explore	VB
3335	3	26	,	,	,
3335	3	27	understand	understand	VB
3335	3	28	,	,	,
3335	3	29	and	and	CC
3335	3	30	manage	manage	VB
3335	3	31	their	-PRON-	PRP$
3335	3	32	content	content	NN
3335	3	33	.	.	.
3335	4	1	One	one	CD
3335	4	2	important	important	JJ
3335	4	3	technique	technique	NN
3335	4	4	for	for	IN
3335	4	5	designing	design	VBG
3335	4	6	such	such	JJ
3335	4	7	interfaces	interface	NNS
3335	4	8	is	be	VBZ
3335	4	9	information	information	NN
3335	4	10	visualization	visualization	NN
3335	4	11	.	.	.
3335	5	1	Although	although	IN
3335	5	2	computer	computer	NN
3335	5	3	-	-	HYPH
3335	5	4	aided	aid	VBN
3335	5	5	information	information	NN
3335	5	6	visualization	visualization	NN
3335	5	7	is	be	VBZ
3335	5	8	a	a	DT
3335	5	9	relatively	relatively	RB
3335	5	10	new	new	JJ
3335	5	11	research	research	NN
3335	5	12	area	area	NN
3335	5	13	,	,	,
3335	5	14	numerous	numerous	JJ
3335	5	15	visualization	visualization	NN
3335	5	16	applications	application	NNS
3335	5	17	already	already	RB
3335	5	18	exist	exist	VBP
3335	5	19	in	in	IN
3335	5	20	various	various	JJ
3335	5	21	fields	field	NNS
3335	5	22	today	today	NN
3335	5	23	.	.	.
3335	6	1	Furthermore	furthermore	RB
3335	6	2	,	,	,
3335	6	3	many	many	JJ
3335	6	4	library	library	NN
3335	6	5	professionals	professional	NNS
3335	6	6	are	be	VBP
3335	6	7	also	also	RB
3335	6	8	starting	start	VBG
3335	6	9	to	to	TO
3335	6	10	realize	realize	VB
3335	6	11	that	that	IN
3335	6	12	combining	combine	VBG
3335	6	13	information	information	NN
3335	6	14	visualization	visualization	NN
3335	6	15	techniques	technique	NNS
3335	6	16	and	and	CC
3335	6	17	current	current	JJ
3335	6	18	library	library	NN
3335	6	19	technologies	technology	NNS
3335	6	20	,	,	,
3335	6	21	such	such	JJ
3335	6	22	as	as	IN
3335	6	23	digital	digital	JJ
3335	6	24	libraries	library	NNS
3335	6	25	,	,	,
3335	6	26	can	can	MD
3335	6	27	help	help	VB
3335	6	28	library	library	NN
3335	6	29	users	user	NNS
3335	6	30	find	find	VB
3335	6	31	information	information	NN
3335	6	32	more	more	RBR
3335	6	33	effectively	effectively	RB
3335	6	34	and	and	CC
3335	6	35	efficiently	efficiently	RB
3335	6	36	.	.	.
3335	7	1	This	this	DT
3335	7	2	article	article	NN
3335	7	3	first	first	RB
3335	7	4	discusses	discuss	VBZ
3335	7	5	three	three	CD
3335	7	6	major	major	JJ
3335	7	7	tasks	task	NNS
3335	7	8	that	that	WDT
3335	7	9	most	most	JJS
3335	7	10	visualization	visualization	NN
3335	7	11	for	for	IN
3335	7	12	digital	digital	JJ
3335	7	13	libraries	library	NNS
3335	7	14	emphasize	emphasize	VBP
3335	7	15	,	,	,
3335	7	16	and	and	CC
3335	7	17	then	then	RB
3335	7	18	introduces	introduce	VBZ
3335	7	19	several	several	JJ
3335	7	20	current	current	JJ
3335	7	21	applications	application	NNS
3335	7	22	of	of	IN
3335	7	23	information	information	NN
3335	7	24	visualization	visualization	NN
3335	7	25	for	for	IN
3335	7	26	digital	digital	JJ
3335	7	27	libraries	library	NNS
3335	7	28	.	.	.
3335	8	1	A	a	DT
3335	8	2	good	good	JJ
3335	8	3	understanding	understanding	NN
3335	8	4	of	of	IN
3335	8	5	user	user	NN
3335	8	6	tasks	task	NNS
3335	8	7	is	be	VBZ
3335	8	8	the	the	DT
3335	8	9	founda-	founda-	NNP
3335	8	10	tion	tion	NN
3335	8	11	of	of	IN
3335	8	12	designing	design	VBG
3335	8	13	useful	useful	JJ
3335	8	14	visualizations	visualization	NNS
3335	8	15	.	.	.
3335	9	1	Rao	rao	JJ
3335	9	2	et	et	FW
3335	9	3	al	al	NNP
3335	9	4	.	.	.
3335	10	1	defined	define	VBN
3335	10	2	several	several	JJ
3335	10	3	specific	specific	JJ
3335	10	4	user	user	NN
3335	10	5	tasks	task	NNS
3335	10	6	of	of	IN
3335	10	7	digital	digital	JJ
3335	10	8	librar-	librar-	NNP
3335	10	9	ies	ie	NNS
3335	10	10	and	and	CC
3335	10	11	illustrated	illustrate	VBD
3335	10	12	some	some	DT
3335	10	13	existing	exist	VBG
3335	10	14	information	information	NN
3335	10	15	-	-	HYPH
3335	10	16	visualiza-	visualiza-	NN
3335	10	17	tion	tion	NN
3335	10	18	techniques	technique	NNS
3335	10	19	that	that	WDT
3335	10	20	can	can	MD
3335	10	21	be	be	VB
3335	10	22	used	use	VBN
3335	10	23	to	to	TO
3335	10	24	enhance	enhance	VB
3335	10	25	these	these	DT
3335	10	26	tasks	task	NNS
3335	10	27	,	,	,
3335	10	28	such	such	JJ
3335	10	29	as	as	IN
3335	10	30	TileBar	TileBar	NNP
3335	10	31	,	,	,
3335	10	32	Cone	Cone	NNP
3335	10	33	Tree	Tree	NNP
3335	10	34	,	,	,
3335	10	35	and	and	CC
3335	10	36	Document	document	NN
3335	10	37	Lens.1	lens.1	NN
3335	10	38	The	the	DT
3335	10	39	tasks	task	NNS
3335	10	40	were	be	VBD
3335	10	41	browsing	browse	VBG
3335	10	42	subsets	subset	NNS
3335	10	43	of	of	IN
3335	10	44	sources	source	NNS
3335	10	45	iteratively	iteratively	RB
3335	10	46	,	,	,
3335	10	47	view-	view-	NNP
3335	10	48	ing	ing	NNP
3335	10	49	context	context	NN
3335	10	50	-	-	HYPH
3335	10	51	of	of	IN
3335	10	52	-	-	HYPH
3335	10	53	query	query	NN
3335	10	54	match	match	NN
3335	10	55	,	,	,
3335	10	56	visualizing	visualize	VBG
3335	10	57	passages	passage	NNS
3335	10	58	within	within	IN
3335	10	59	documents	document	NNS
3335	10	60	,	,	,
3335	10	61	rendering	render	VBG
3335	10	62	sources	source	NNS
3335	10	63	and	and	CC
3335	10	64	results	result	NNS
3335	10	65	,	,	,
3335	10	66	reflecting	reflect	VBG
3335	10	67	time	time	NN
3335	10	68	costs	cost	NNS
3335	10	69	of	of	IN
3335	10	70	interaction	interaction	NN
3335	10	71	,	,	,
3335	10	72	managing	manage	VBG
3335	10	73	multiple	multiple	JJ
3335	10	74	-	-	HYPH
3335	10	75	search	search	NN
3335	10	76	processes	process	NNS
3335	10	77	,	,	,
3335	10	78	integrating	integrate	VBG
3335	10	79	multiple	multiple	JJ
3335	10	80	search	search	NN
3335	10	81	and	and	CC
3335	10	82	browsing	browsing	NN
3335	10	83	techniques	technique	NNS
3335	10	84	,	,	,
3335	10	85	and	and	CC
3335	10	86	visualizing	visualize	VBG
3335	10	87	large	large	JJ
3335	10	88	information	information	NN
3335	10	89	sets	set	NNS
3335	10	90	.	.	.
3335	11	1	Moreover	moreover	RB
3335	11	2	,	,	,
3335	11	3	Zaphiris	Zaphiris	NNP
3335	11	4	et	et	FW
3335	11	5	al	al	NNP
3335	11	6	.	.	.
3335	12	1	generalized	generalize	VBD
3335	12	2	these	these	DT
3335	12	3	tasks	task	NNS
3335	12	4	into	into	IN
3335	12	5	three	three	CD
3335	12	6	essential	essential	JJ
3335	12	7	ones	one	NNS
3335	12	8	:	:	:
3335	12	9	searching	search	VBG
3335	12	10	,	,	,
3335	12	11	navigation	navigation	NN
3335	12	12	,	,	,
3335	12	13	and	and	CC
3335	12	14	browsing.2	browsing.2	NNP
3335	12	15	Indeed	Indeed	NNP
3335	12	16	,	,	,
3335	12	17	most	most	RBS
3335	12	18	infor-	infor-	JJ
3335	12	19	mation	mation	NN
3335	12	20	-	-	HYPH
3335	12	21	visualization	visualization	NN
3335	12	22	projects	project	NNS
3335	12	23	for	for	IN
3335	12	24	digital	digital	JJ
3335	12	25	libraries	library	NNS
3335	12	26	have	have	VBP
3335	12	27	emphasized	emphasize	VBN
3335	12	28	these	these	DT
3335	12	29	three	three	CD
3335	12	30	tasks	task	NNS
3335	12	31	.	.	.
3335	13	1	In	in	IN
3335	13	2	terms	term	NNS
3335	13	3	of	of	IN
3335	13	4	searching	searching	NN
3335	13	5	,	,	,
3335	13	6	Shneiderman	Shneiderman	NNP
3335	13	7	et	et	NNP
3335	13	8	al	al	NNP
3335	13	9	.	.	.
3335	14	1	proposed	propose	VBD
3335	14	2	the	the	DT
3335	14	3	use	use	NN
3335	14	4	of	of	IN
3335	14	5	a	a	DT
3335	14	6	two	two	CD
3335	14	7	-	-	HYPH
3335	14	8	dimensional	dimensional	JJ
3335	14	9	display	display	NN
3335	14	10	with	with	IN
3335	14	11	continuous	continuous	JJ
3335	14	12	variables	variable	NNS
3335	14	13	to	to	TO
3335	14	14	view	view	VB
3335	14	15	several	several	JJ
3335	14	16	thousand	thousand	CD
3335	14	17	search	search	NN
3335	14	18	results	result	NNS
3335	14	19	simul-	simul-	XX
3335	14	20	taneously.3	taneously.3	PDT
3335	14	21	This	this	DT
3335	14	22	visualization	visualization	NN
3335	14	23	included	include	VBD
3335	14	24	two	two	CD
3335	14	25	strategies	strategy	NNS
3335	14	26	:	:	:
3335	14	27	two	two	CD
3335	14	28	-	-	HYPH
3335	14	29	dimensional	dimensional	JJ
3335	14	30	visualizations	visualization	NNS
3335	14	31	,	,	,
3335	14	32	and	and	CC
3335	14	33	browsers	browser	NNS
3335	14	34	for	for	IN
3335	14	35	hier-	hier-	NNP
3335	14	36	archical	archical	JJ
3335	14	37	data	datum	NNS
3335	14	38	sets	set	NNS
3335	14	39	(	(	-LRB-
3335	14	40	implemented	implement	VBN
3335	14	41	by	by	IN
3335	14	42	using	use	VBG
3335	14	43	categorical	categorical	JJ
3335	14	44	and	and	CC
3335	14	45	hierarchical	hierarchical	JJ
3335	14	46	axes	axis	NNS
3335	14	47	)	)	-RRB-
3335	14	48	.	.	.
3335	15	1	In	in	IN
3335	15	2	combination	combination	NN
3335	15	3	with	with	IN
3335	15	4	a	a	DT
3335	15	5	grid	grid	NN
3335	15	6	display	display	NN
3335	15	7	,	,	,
3335	15	8	this	this	DT
3335	15	9	visualization	visualization	NN
3335	15	10	let	let	VBP
3335	15	11	users	user	NNS
3335	15	12	see	see	VB
3335	15	13	an	an	DT
3335	15	14	overview	overview	NN
3335	15	15	by	by	IN
3335	15	16	color-	color-	JJ
3335	15	17	coded	code	VBN
3335	15	18	dots	dot	NNS
3335	15	19	or	or	CC
3335	15	20	bar	bar	NN
3335	15	21	charts	chart	NNS
3335	15	22	arranged	arrange	VBN
3335	15	23	on	on	IN
3335	15	24	a	a	DT
3335	15	25	grid	grid	NN
3335	15	26	and	and	CC
3335	15	27	orga-	orga-	NN
3335	15	28	nized	nize	VBN
3335	15	29	by	by	IN
3335	15	30	familiar	familiar	JJ
3335	15	31	labeled	label	VBN
3335	15	32	categories	category	NNS
3335	15	33	.	.	.
3335	16	1	Users	user	NNS
3335	16	2	could	could	MD
3335	16	3	probe	probe	VB
3335	16	4	further	further	RB
3335	16	5	by	by	IN
3335	16	6	zooming	zoom	VBG
3335	16	7	in	in	RP
3335	16	8	on	on	IN
3335	16	9	desired	desire	VBN
3335	16	10	categories	category	NNS
3335	16	11	or	or	CC
3335	16	12	switching	switch	VBG
3335	16	13	to	to	IN
3335	16	14	another	another	DT
3335	16	15	hierarchical	hierarchical	JJ
3335	16	16	variable	variable	NN
3335	16	17	.	.	.
3335	17	1	A	a	DT
3335	17	2	language	language	NN
3335	17	3	-	-	HYPH
3335	17	4	indepen-	indepen-	NN
3335	17	5	dent	dent	NN
3335	17	6	document	document	NN
3335	17	7	-	-	HYPH
3335	17	8	classification	classification	NN
3335	17	9	system	system	NN
3335	17	10	,	,	,
3335	17	11	completed	complete	VBN
3335	17	12	by	by	IN
3335	17	13	Liu	Liu	NNP
3335	17	14	et	et	NNP
3335	17	15	al	al	NNP
3335	17	16	.	.	NNP
3335	17	17	,	,	,
3335	17	18	provided	provide	VBD
3335	17	19	a	a	DT
3335	17	20	search	search	NN
3335	17	21	aid	aid	NN
3335	17	22	in	in	IN
3335	17	23	a	a	DT
3335	17	24	digital	digital	JJ
3335	17	25	-	-	HYPH
3335	17	26	library	library	NN
3335	17	27	environ-	environ-	NN
3335	17	28	ment	ment	JJ
3335	17	29	and	and	CC
3335	17	30	helped	help	VBD
3335	17	31	users	user	NNS
3335	17	32	analyze	analyze	VB
3335	17	33	the	the	DT
3335	17	34	search	search	NN
3335	17	35	query	query	NN
3335	17	36	results	result	VBZ
3335	17	37	visually.4	visually.4	RB
3335	17	38	This	this	DT
3335	17	39	system	system	NN
3335	17	40	used	use	VBD
3335	17	41	a	a	DT
3335	17	42	vector	vector	NN
3335	17	43	model	model	NN
3335	17	44	to	to	TO
3335	17	45	calculate	calculate	VB
3335	17	46	the	the	DT
3335	17	47	similarities	similarity	NNS
3335	17	48	between	between	IN
3335	17	49	documents	document	NNS
3335	17	50	and	and	CC
3335	17	51	a	a	DT
3335	17	52	Java	Java	NNP
3335	17	53	applet	applet	NN
3335	17	54	to	to	TO
3335	17	55	display	display	VB
3335	17	56	the	the	DT
3335	17	57	classification	classification	NN
3335	17	58	to	to	IN
3335	17	59	the	the	DT
3335	17	60	user	user	NN
3335	17	61	.	.	.
3335	18	1	In	in	IN
3335	18	2	terms	term	NNS
3335	18	3	of	of	IN
3335	18	4	navigation	navigation	NN
3335	18	5	,	,	,
3335	18	6	there	there	EX
3335	18	7	are	be	VBP
3335	18	8	also	also	RB
3335	18	9	a	a	DT
3335	18	10	variety	variety	NN
3335	18	11	of	of	IN
3335	18	12	information	information	NN
3335	18	13	-	-	HYPH
3335	18	14	visualization	visualization	NN
3335	18	15	applications	application	NNS
3335	18	16	.	.	.
3335	19	1	The	the	DT
3335	19	2	previous	previous	JJ
3335	19	3	example	example	NN
3335	19	4	of	of	IN
3335	19	5	two	two	CD
3335	19	6	-	-	HYPH
3335	19	7	dimensional	dimensional	JJ
3335	19	8	display	display	NN
3335	19	9	developed	develop	VBN
3335	19	10	by	by	IN
3335	19	11	Shniederman	Shniederman	NNP
3335	19	12	et	et	NNP
3335	19	13	al	al	NNP
3335	19	14	.	.	.
3335	20	1	also	also	RB
3335	20	2	contained	contain	VBD
3335	20	3	navigation	navigation	NN
3335	20	4	functions.5	functions.5	PDT
3335	20	5	Another	another	DT
3335	20	6	example	example	NN
3335	20	7	is	be	VBZ
3335	20	8	Hascoet	Hascoet	NNP
3335	20	9	’s	’s	POS
3335	20	10	map	map	NN
3335	20	11	interface	interface	NN
3335	20	12	applied	apply	VBN
3335	20	13	to	to	IN
3335	20	14	a	a	DT
3335	20	15	digital	digital	JJ
3335	20	16	library.6	library.6	NN
3335	20	17	This	this	DT
3335	20	18	prototype	prototype	NN
3335	20	19	was	be	VBD
3335	20	20	associated	associate	VBN
3335	20	21	with	with	IN
3335	20	22	summary	summary	NN
3335	20	23	views	view	NNS
3335	20	24	in	in	IN
3335	20	25	the	the	DT
3335	20	26	form	form	NN
3335	20	27	of	of	IN
3335	20	28	navigation	navigation	NN
3335	20	29	trees	tree	NNS
3335	20	30	and	and	CC
3335	20	31	neighbor	neighbor	NN
3335	20	32	trees	tree	NNS
3335	20	33	that	that	WDT
3335	20	34	showed	show	VBD
3335	20	35	documents	document	NNS
3335	20	36	related	relate	VBN
3335	20	37	to	to	IN
3335	20	38	one	one	CD
3335	20	39	focus	focus	JJ
3335	20	40	document	document	NN
3335	20	41	.	.	.
3335	21	1	The	the	DT
3335	21	2	user	user	NN
3335	21	3	interface	interface	NN
3335	21	4	was	be	VBD
3335	21	5	composed	compose	VBN
3335	21	6	of	of	IN
3335	21	7	maps	map	NNS
3335	21	8	automatically	automatically	RB
3335	21	9	generated	generate	VBN
3335	21	10	based	base	VBN
3335	21	11	on	on	IN
3335	21	12	the	the	DT
3335	21	13	characteris-	characteris-	NN
3335	21	14	tics	tic	NNS
3335	21	15	of	of	IN
3335	21	16	documents	document	NNS
3335	21	17	retrieved	retrieve	VBN
3335	21	18	and	and	CC
3335	21	19	a	a	DT
3335	21	20	default	default	NN
3335	21	21	configuration	configuration	NN
3335	21	22	.	.	.
3335	22	1	Users	user	NNS
3335	22	2	could	could	MD
3335	22	3	also	also	RB
3335	22	4	modify	modify	VB
3335	22	5	the	the	DT
3335	22	6	configuration	configuration	NN
3335	22	7	of	of	IN
3335	22	8	maps	map	NNS
3335	22	9	and	and	CC
3335	22	10	edit	edit	NN
3335	22	11	maps	map	NNS
3335	22	12	(	(	-LRB-
3335	22	13	classical	classical	JJ
3335	22	14	operations	operation	NNS
3335	22	15	such	such	JJ
3335	22	16	as	as	IN
3335	22	17	cut	cut	VBN
3335	22	18	,	,	,
3335	22	19	paste	paste	NN
3335	22	20	,	,	,
3335	22	21	move	move	VB
3335	22	22	,	,	,
3335	22	23	delete	delete	JJ
3335	22	24	,	,	,
3335	22	25	save	save	VB
3335	22	26	and	and	CC
3335	22	27	load	load	VB
3335	22	28	a	a	DT
3335	22	29	view	view	NN
3335	22	30	,	,	,
3335	22	31	and	and	CC
3335	22	32	expand	expand	VB
3335	22	33	a	a	DT
3335	22	34	view	view	NN
3335	22	35	)	)	-RRB-
3335	22	36	.	.	.
3335	23	1	As	as	IN
3335	23	2	for	for	IN
3335	23	3	browsing	browsing	NN
3335	23	4	,	,	,
3335	23	5	the	the	DT
3335	23	6	use	use	NN
3335	23	7	of	of	IN
3335	23	8	dynamic	dynamic	JJ
3335	23	9	queries	query	NNS
3335	23	10	is	be	VBZ
3335	23	11	a	a	DT
3335	23	12	tech-	tech-	JJ
3335	23	13	nique	nique	NN
3335	23	14	that	that	WDT
3335	23	15	has	have	VBZ
3335	23	16	been	be	VBN
3335	23	17	employed	employ	VBN
3335	23	18	for	for	IN
3335	23	19	some	some	DT
3335	23	20	time	time	NN
3335	23	21	.	.	.
3335	24	1	Ahlberg	Ahlberg	NNP
3335	24	2	and	and	CC
3335	24	3	Shneiderman	Shneiderman	NNP
3335	24	4	’s	’s	POS
3335	24	5	(	(	-LRB-
3335	24	6	1994	1994	CD
3335	24	7	)	)	-RRB-
3335	24	8	FilmFinder	FilmFinder	NNP
3335	24	9	is	be	VBZ
3335	24	10	an	an	DT
3335	24	11	early	early	JJ
3335	24	12	example.7	example.7	CD
3335	24	13	Users	user	NNS
3335	24	14	can	can	MD
3335	24	15	move	move	VB
3335	24	16	several	several	JJ
3335	24	17	sliders	slider	NNS
3335	24	18	to	to	TO
3335	24	19	select	select	VB
3335	24	20	query	query	NN
3335	24	21	param-	param-	JJ
3335	24	22	eters	eter	NNS
3335	24	23	,	,	,
3335	24	24	and	and	CC
3335	24	25	the	the	DT
3335	24	26	search	search	NN
3335	24	27	results	result	NNS
3335	24	28	change	change	VBP
3335	24	29	with	with	IN
3335	24	30	the	the	DT
3335	24	31	movement	movement	NN
3335	24	32	of	of	IN
3335	24	33	the	the	DT
3335	24	34	sliders	slider	NNS
3335	24	35	.	.	.
3335	25	1	This	this	DT
3335	25	2	tool	tool	NN
3335	25	3	can	can	MD
3335	25	4	help	help	VB
3335	25	5	users	user	NNS
3335	25	6	browse	browse	VB
3335	25	7	movie	movie	NN
3335	25	8	records	record	NNS
3335	25	9	more	more	RBR
3335	25	10	easily	easily	RB
3335	25	11	and	and	CC
3335	25	12	cognitively	cognitively	RB
3335	25	13	.	.	.
3335	26	1	Another	another	DT
3335	26	2	technique	technique	NN
3335	26	3	is	be	VBZ
3335	26	4	Query	Query	NNP
3335	26	5	Previews	Previews	NNP
3335	26	6	,	,	,
3335	26	7	proposed	propose	VBN
3335	26	8	by	by	IN
3335	26	9	Doan	Doan	NNP
3335	26	10	et	et	NNP
3335	26	11	al.8	al.8	NN
3335	26	12	Query	Query	NNP
3335	26	13	Previews	Previews	NNP
3335	26	14	allows	allow	VBZ
3335	26	15	users	user	NNS
3335	26	16	to	to	TO
3335	26	17	rapidly	rapidly	RB
3335	26	18	gain	gain	VB
3335	26	19	an	an	DT
3335	26	20	understanding	understanding	NN
3335	26	21	of	of	IN
3335	26	22	the	the	DT
3335	26	23	con-	con-	NNP
3335	26	24	tent	tent	NNP
3335	26	25	and	and	CC
3335	26	26	scope	scope	NN
3335	26	27	of	of	IN
3335	26	28	a	a	DT
3335	26	29	digital	digital	JJ
3335	26	30	collection	collection	NN
3335	26	31	.	.	.
3335	27	1	Users	user	NNS
3335	27	2	are	be	VBP
3335	27	3	presented	present	VBN
3335	27	4	with	with	IN
3335	27	5	generalized	generalized	JJ
3335	27	6	previews	preview	NNS
3335	27	7	of	of	IN
3335	27	8	the	the	DT
3335	27	9	entire	entire	JJ
3335	27	10	database	database	NN
3335	27	11	using	use	VBG
3335	27	12	only	only	RB
3335	27	13	the	the	DT
3335	27	14	most	most	JJS
3335	27	15	salient	salient	NN
3335	27	16	attributes	attribute	NNS
3335	27	17	.	.	.
3335	28	1	When	when	WRB
3335	28	2	they	-PRON-	PRP
3335	28	3	select	select	VBP
3335	28	4	rough	rough	JJ
3335	28	5	ranges	range	NNS
3335	28	6	,	,	,
3335	28	7	they	-PRON-	PRP
3335	28	8	will	will	MD
3335	28	9	immediately	immediately	RB
3335	28	10	learn	learn	VB
3335	28	11	the	the	DT
3335	28	12	availability	availability	NN
3335	28	13	of	of	IN
3335	28	14	the	the	DT
3335	28	15	data	datum	NNS
3335	28	16	for	for	IN
3335	28	17	their	-PRON-	PRP$
3335	28	18	proposed	propose	VBN
3335	28	19	query	query	NN
3335	28	20	.	.	.
3335	29	1	All	all	PDT
3335	29	2	these	these	DT
3335	29	3	applications	application	NNS
3335	29	4	provide	provide	VBP
3335	29	5	good	good	JJ
3335	29	6	examples	example	NNS
3335	29	7	and	and	CC
3335	29	8	paradigms	paradigm	NNS
3335	29	9	to	to	IN
3335	29	10	some	some	DT
3335	29	11	recent	recent	JJ
3335	29	12	projects	project	NNS
3335	29	13	.	.	.
3335	30	1	This	this	DT
3335	30	2	paper	paper	NN
3335	30	3	’s	’s	POS
3335	30	4	discussion	discussion	NN
3335	30	5	of	of	IN
3335	30	6	visualization	visualization	NN
3335	30	7	techniques	technique	NNS
3335	30	8	will	will	MD
3335	30	9	be	be	VB
3335	30	10	based	base	VBN
3335	30	11	on	on	IN
3335	30	12	these	these	DT
3335	30	13	three	three	CD
3335	30	14	essential	essential	JJ
3335	30	15	tasks	task	NNS
3335	30	16	—	—	:
3335	30	17	searching	search	VBG
3335	30	18	,	,	,
3335	30	19	navigation	navigation	NN
3335	30	20	,	,	,
3335	30	21	and	and	CC
3335	30	22	browsing	browsing	NN
3335	30	23	.	.	.
3335	31	1	■	■	NFP
3335	31	2	Techniques	technique	NNS
3335	31	3	and	and	CC
3335	31	4	applications	application	NNS
3335	31	5	This	this	DT
3335	31	6	section	section	NN
3335	31	7	presents	present	VBZ
3335	31	8	several	several	JJ
3335	31	9	recent	recent	JJ
3335	31	10	information	information	NN
3335	31	11	-	-	HYPH
3335	31	12	visualiza-	visualiza-	NN
3335	31	13	tion	tion	NN
3335	31	14	projects	project	NNS
3335	31	15	applied	apply	VBN
3335	31	16	to	to	IN
3335	31	17	digital	digital	JJ
3335	31	18	libraries	library	NNS
3335	31	19	.	.	.
3335	32	1	All	all	PDT
3335	32	2	these	these	DT
3335	32	3	applica-	applica-	JJ
3335	32	4	tions	tion	NNS
3335	32	5	emphasize	emphasize	VBP
3335	32	6	searching	searching	NN
3335	32	7	,	,	,
3335	32	8	navigation	navigation	NN
3335	32	9	,	,	,
3335	32	10	and	and	CC
3335	32	11	browsing	browsing	NN
3335	32	12	.	.	.
3335	33	1	Gang	Gang	NNP
3335	33	2	Wan	Wan	NNP
3335	33	3	Gang	Gang	NNP
3335	33	4	Wan	Wan	NNP
3335	33	5	(	(	-LRB-
3335	33	6	wangang11@gmail.com	wangang11@gmail.com	FW
3335	33	7	)	)	-RRB-
3335	33	8	is	be	VBZ
3335	33	9	Science	Science	NNP
3335	33	10	Librarian	Librarian	NNP
3335	33	11	,	,	,
3335	33	12	Texas	Texas	NNP
3335	33	13	A&M	A&M	NNP
3335	33	14	University	University	NNP
3335	33	15	,	,	,
3335	33	16	College	College	NNP
3335	33	17	Station	Station	NNP
3335	33	18	.	.	.
3335	34	1	Visualizations	visualization	NNS
3335	34	2	for	for	IN
3335	34	3	Digital	Digital	NNP
3335	34	4	Libraries	Libraries	NNPS
3335	34	5	ARTICLE	ARTICLE	NNP
3335	34	6	TITLE	title	NN
3335	34	7	|	|	CD
3335	34	8	AUTHOR	author	NN
3335	34	9	89VISUALIZATIONS	89visualizations	CD
3335	34	10	FOR	for	IN
3335	34	11	DIGITAL	DIGITAL	NNP
3335	34	12	LIBRARIES	LIBRARIES	NNP
3335	34	13	|	|	NNP
3335	34	14	WAN	wan	NN
3335	34	15	89	89	CD
3335	34	16	LVis	lvi	NNS
3335	34	17	—	—	:
3335	34	18	Digital	Digital	NNP
3335	34	19	Library	Library	NNP
3335	34	20	Visualizer	Visualizer	NNP
3335	34	21	Indiana	Indiana	NNP
3335	34	22	University	University	NNP
3335	34	23	’s	’s	,
3335	34	24	(	(	-LRB-
3335	34	25	IU	IU	NNP
3335	34	26	’s	’s	,
3335	34	27	)	)	-RRB-
3335	34	28	LVis	LVis	NNP
3335	34	29	(	(	-LRB-
3335	34	30	Digital	Digital	NNP
3335	34	31	Library	Library	NNP
3335	34	32	Visualiz-	Visualiz-	NNP
3335	34	33	er	er	UH
3335	34	34	)	)	-RRB-
3335	34	35	project	project	NN
3335	34	36	aims	aim	VBZ
3335	34	37	to	to	TO
3335	34	38	aid	aid	VB
3335	34	39	users	user	NNS
3335	34	40	’	’	POS
3335	34	41	navigation	navigation	NN
3335	34	42	and	and	CC
3335	34	43	compre-	compre-	NN
3335	34	44	hension	hension	NN
3335	34	45	of	of	IN
3335	34	46	large	large	JJ
3335	34	47	document	document	NN
3335	34	48	sets	set	NNS
3335	34	49	retrieved	retrieve	VBN
3335	34	50	from	from	IN
3335	34	51	digital	digital	JJ
3335	34	52	libraries	library	NNS
3335	34	53	.	.	.
3335	35	1	Borner	Borner	NNP
3335	35	2	et	et	NNP
3335	35	3	al	al	NNP
3335	35	4	.	.	.
3335	36	1	developed	develop	VBD
3335	36	2	a	a	DT
3335	36	3	prototype	prototype	NN
3335	36	4	of	of	IN
3335	36	5	LVis	LVis	NNP
3335	36	6	based	base	VBN
3335	36	7	on	on	IN
3335	36	8	the	the	DT
3335	36	9	data	data	NN
3335	36	10	set	set	VBN
3335	36	11	in	in	IN
3335	36	12	the	the	DT
3335	36	13	Dido	Dido	NNP
3335	36	14	Image	Image	NNP
3335	36	15	Bank	Bank	NNP
3335	36	16	,	,	,
3335	36	17	provided	provide	VBN
3335	36	18	by	by	IN
3335	36	19	IU	IU	NNP
3335	36	20	’s	’s	POS
3335	36	21	department	department	NN
3335	36	22	of	of	IN
3335	36	23	art	art	NN
3335	36	24	history.9	history.9	VBN
3335	36	25	LVis	LVis	NNP
3335	36	26	is	be	VBZ
3335	36	27	a	a	DT
3335	36	28	good	good	JJ
3335	36	29	com-	com-	NN
3335	36	30	bination	bination	NN
3335	36	31	of	of	IN
3335	36	32	information	information	NN
3335	36	33	-	-	HYPH
3335	36	34	retrieval	retrieval	NN
3335	36	35	algorithms	algorithm	NNS
3335	36	36	and	and	CC
3335	36	37	visual-	visual-	NN
3335	36	38	ized	ize	VBN
3335	36	39	-	-	HYPH
3335	36	40	search	search	NN
3335	36	41	interface	interface	NN
3335	36	42	.	.	.
3335	37	1	In	in	IN
3335	37	2	the	the	DT
3335	37	3	information	information	NN
3335	37	4	retrieval	retrieval	NN
3335	37	5	and	and	CC
3335	37	6	classification	classification	NN
3335	37	7	stage	stage	NN
3335	37	8	,	,	,
3335	37	9	it	-PRON-	PRP
3335	37	10	adopts	adopt	VBZ
3335	37	11	Latent	Latent	NNP
3335	37	12	Semantic	Semantic	NNP
3335	37	13	Analysis	Analysis	NNP
3335	37	14	(	(	-LRB-
3335	37	15	LSA	LSA	NNP
3335	37	16	)	)	-RRB-
3335	37	17	to	to	TO
3335	37	18	automatically	automatically	RB
3335	37	19	extract	extract	VB
3335	37	20	semantic	semantic	JJ
3335	37	21	relationships	relationship	NNS
3335	37	22	between	between	IN
3335	37	23	images	image	NNS
3335	37	24	.	.	.
3335	38	1	The	the	DT
3335	38	2	LSA	LSA	NNP
3335	38	3	output	output	NN
3335	38	4	feeds	feed	VBZ
3335	38	5	into	into	IN
3335	38	6	a	a	DT
3335	38	7	clustering	cluster	VBG
3335	38	8	algorithm	algorithm	NN
3335	38	9	that	that	WDT
3335	38	10	groups	group	VBZ
3335	38	11	images	image	NNS
3335	38	12	into	into	IN
3335	38	13	several	several	JJ
3335	38	14	classes	class	NNS
3335	38	15	sharing	share	VBG
3335	38	16	semantically	semantically	RB
3335	38	17	similar	similar	JJ
3335	38	18	descriptors	descriptor	NNS
3335	38	19	.	.	.
3335	39	1	A	a	DT
3335	39	2	modified	modify	VBN
3335	39	3	Boltzman	Boltzman	NNP
3335	39	4	algorithm	algorithm	NN
3335	39	5	is	be	VBZ
3335	39	6	then	then	RB
3335	39	7	used	use	VBN
3335	39	8	to	to	TO
3335	39	9	lay	lay	VB
3335	39	10	out	out	RP
3335	39	11	images	image	NNS
3335	39	12	in	in	IN
3335	39	13	space	space	NN
3335	39	14	.	.	.
3335	40	1	This	this	DT
3335	40	2	section	section	NN
3335	40	3	will	will	MD
3335	40	4	focus	focus	VB
3335	40	5	on	on	IN
3335	40	6	the	the	DT
3335	40	7	interface	interface	NN
3335	40	8	metaphors	metaphor	NNS
3335	40	9	used	use	VBD
3335	40	10	to	to	TO
3335	40	11	dis-	dis-	VB
3335	40	12	play	play	VB
3335	40	13	the	the	DT
3335	40	14	results	result	NNS
3335	40	15	of	of	IN
3335	40	16	this	this	DT
3335	40	17	classification	classification	NN
3335	40	18	.	.	.
3335	41	1	Two	two	CD
3335	41	2	interfaces	interface	NNS
3335	41	3	have	have	VBP
3335	41	4	been	be	VBN
3335	41	5	implemented	implement	VBN
3335	41	6	for	for	IN
3335	41	7	LVis	LVis	NNP
3335	41	8	.	.	.
3335	42	1	A	a	DT
3335	42	2	2D	2d	JJ
3335	42	3	Java	Java	NNP
3335	42	4	applet	applet	NN
3335	42	5	was	be	VBD
3335	42	6	used	use	VBN
3335	42	7	on	on	IN
3335	42	8	a	a	DT
3335	42	9	desktop	desktop	NN
3335	42	10	computer	computer	NN
3335	42	11	for	for	IN
3335	42	12	details	detail	NNS
3335	42	13	,	,	,
3335	42	14	and	and	CC
3335	42	15	a	a	DT
3335	42	16	3D	3d	JJ
3335	42	17	immersible	immersible	JJ
3335	42	18	environment	environment	NN
3335	42	19	for	for	IN
3335	42	20	the	the	DT
3335	42	21	CAVE	CAVE	NNPS
3335	42	22	(	(	-LRB-
3335	42	23	CAVE	CAVE	NNP
3335	42	24	Automatic	automatic	JJ
3335	42	25	Virtual	Virtual	NNP
3335	42	26	Environment	Environment	NNP
3335	42	27	)	)	-RRB-
3335	42	28	.	.	.
3335	43	1	CAVE	CAVE	NNP
3335	43	2	is	be	VBZ
3335	43	3	a	a	DT
3335	43	4	virtual	virtual	JJ
3335	43	5	real-	real-	JJ
3335	43	6	ity	ity	NN
3335	43	7	10	10	CD
3335	43	8	’	’	POS
3335	43	9	x	x	SYM
3335	43	10	10	10	CD
3335	43	11	’	’	NNS
3335	43	12	x	x	SYM
3335	43	13	10	10	CD
3335	43	14	’	'	''
3335	43	15	theater	theater	NN
3335	43	16	made	make	VBD
3335	43	17	up	up	RP
3335	43	18	of	of	IN
3335	43	19	three	three	CD
3335	43	20	rear	rear	JJ
3335	43	21	-	-	HYPH
3335	43	22	projection	projection	NN
3335	43	23	screens	screen	NNS
3335	43	24	for	for	IN
3335	43	25	walls	wall	NNS
3335	43	26	and	and	CC
3335	43	27	a	a	DT
3335	43	28	down	down	JJ
3335	43	29	-	-	HYPH
3335	43	30	projection	projection	NN
3335	43	31	screen	screen	NN
3335	43	32	for	for	IN
3335	43	33	the	the	DT
3335	43	34	floor	floor	NN
3335	43	35	.	.	.
3335	44	1	Projectors	projector	NNS
3335	44	2	throw	throw	VBP
3335	44	3	full	full	JJ
3335	44	4	-	-	HYPH
3335	44	5	color	color	NN
3335	44	6	workstation	workstation	NN
3335	44	7	fields	field	NNS
3335	44	8	(	(	-LRB-
3335	44	9	1,280	1,280	CD
3335	44	10	x	x	SYM
3335	44	11	512	512	CD
3335	44	12	stereo	stereo	NN
3335	44	13	)	)	-RRB-
3335	44	14	at	at	IN
3335	44	15	120Hz	120hz	CD
3335	44	16	onto	onto	IN
3335	44	17	the	the	DT
3335	44	18	screens	screen	NNS
3335	44	19	,	,	,
3335	44	20	giving	give	VBG
3335	44	21	between	between	IN
3335	44	22	2,000	2,000	CD
3335	44	23	and	and	CC
3335	44	24	4,000	4,000	CD
3335	44	25	linear	linear	JJ
3335	44	26	pixel	pixel	NN
3335	44	27	resolution	resolution	NN
3335	44	28	to	to	IN
3335	44	29	the	the	DT
3335	44	30	surrounding	surround	VBG
3335	44	31	composite	composite	JJ
3335	44	32	image.10	image.10	NNP
3335	44	33	Both	both	CC
3335	44	34	2D	2d	VBP
3335	44	35	and	and	CC
3335	44	36	3D	3d	NN
3335	44	37	interfaces	interface	NNS
3335	44	38	give	give	VBP
3335	44	39	users	user	NNS
3335	44	40	access	access	NN
3335	44	41	to	to	IN
3335	44	42	three	three	CD
3335	44	43	levels	level	NNS
3335	44	44	of	of	IN
3335	44	45	detail	detail	NN
3335	44	46	:	:	:
3335	44	47	they	-PRON-	PRP
3335	44	48	provide	provide	VBP
3335	44	49	an	an	DT
3335	44	50	overview	overview	NN
3335	44	51	about	about	IN
3335	44	52	docu-	docu-	JJ
3335	44	53	ment	ment	JJ
3335	44	54	clusters	cluster	NNS
3335	44	55	and	and	CC
3335	44	56	their	-PRON-	PRP$
3335	44	57	relations	relation	NNS
3335	44	58	;	;	:
3335	44	59	they	-PRON-	PRP
3335	44	60	show	show	VBP
3335	44	61	how	how	WRB
3335	44	62	images	image	NNS
3335	44	63	belonging	belong	VBG
3335	44	64	in	in	IN
3335	44	65	the	the	DT
3335	44	66	same	same	JJ
3335	44	67	cluster	cluster	NN
3335	44	68	relate	relate	VB
3335	44	69	to	to	IN
3335	44	70	one	one	CD
3335	44	71	another	another	DT
3335	44	72	;	;	:
3335	44	73	and	and	CC
3335	44	74	they	-PRON-	PRP
3335	44	75	give	give	VBP
3335	44	76	more	more	RBR
3335	44	77	detailed	detailed	JJ
3335	44	78	information	information	NN
3335	44	79	about	about	IN
3335	44	80	an	an	DT
3335	44	81	image	image	NN
3335	44	82	,	,	,
3335	44	83	such	such	JJ
3335	44	84	as	as	IN
3335	44	85	its	-PRON-	PRP$
3335	44	86	description	description	NN
3335	44	87	or	or	CC
3335	44	88	its	-PRON-	PRP$
3335	44	89	full	full	JJ
3335	44	90	-	-	HYPH
3335	44	91	size	size	NN
3335	44	92	version	version	NN
3335	44	93	.	.	.
3335	45	1	In	in	IN
3335	45	2	the	the	DT
3335	45	3	CAVE	cave	JJ
3335	45	4	environment	environment	NN
3335	45	5	,	,	,
3335	45	6	users	user	NNS
3335	45	7	can	can	MD
3335	45	8	first	first	RB
3335	45	9	enter	enter	VB
3335	45	10	a	a	DT
3335	45	11	virtual	virtual	JJ
3335	45	12	display	display	NN
3335	45	13	theater	theater	NN
3335	45	14	that	that	WDT
3335	45	15	stages	stage	VBZ
3335	45	16	the	the	DT
3335	45	17	digital	digital	JJ
3335	45	18	library	library	NN
3335	45	19	as	as	IN
3335	45	20	a	a	DT
3335	45	21	cyberspace	cyberspace	NN
3335	45	22	Easter	Easter	NNP
3335	45	23	Island	Island	NNP
3335	45	24	,	,	,
3335	45	25	presenting	present	VBG
3335	45	26	gateways	gateway	NNS
3335	45	27	to	to	IN
3335	45	28	specific	specific	JJ
3335	45	29	subject	subject	JJ
3335	45	30	categories	category	NNS
3335	45	31	established	establish	VBN
3335	45	32	by	by	IN
3335	45	33	the	the	DT
3335	45	34	previous	previous	JJ
3335	45	35	classification	classification	NN
3335	45	36	process	process	NN
3335	45	37	.	.	.
3335	46	1	Borner	Borner	NNP
3335	46	2	et	et	NNP
3335	46	3	al	al	NNP
3335	46	4	.	.	.
3335	47	1	used	use	VBN
3335	47	2	3D	3d	JJ
3335	47	3	icons	icon	NNS
3335	47	4	here	here	RB
3335	47	5	to	to	TO
3335	47	6	encode	encode	VB
3335	47	7	subject	subject	JJ
3335	47	8	categories	category	NNS
3335	47	9	(	(	-LRB-
3335	47	10	in	in	IN
3335	47	11	this	this	DT
3335	47	12	case	case	NN
3335	47	13	,	,	,
3335	47	14	they	-PRON-	PRP
3335	47	15	actually	actually	RB
3335	47	16	used	use	VBD
3335	47	17	a	a	DT
3335	47	18	sculptural	sculptural	JJ
3335	47	19	form	form	NN
3335	47	20	of	of	IN
3335	47	21	heads	head	NNS
3335	47	22	inspired	inspire	VBN
3335	47	23	by	by	IN
3335	47	24	images	image	NNS
3335	47	25	of	of	IN
3335	47	26	the	the	DT
3335	47	27	data	datum	NNS
3335	47	28	set).11	set).11	:
3335	47	29	After	after	IN
3335	47	30	users	user	NNS
3335	47	31	“	"	``
3335	47	32	enter	enter	VBP
3335	47	33	”	"	''
3335	47	34	into	into	IN
3335	47	35	these	these	DT
3335	47	36	head	head	NN
3335	47	37	icons	icon	NNS
3335	47	38	,	,	,
3335	47	39	they	-PRON-	PRP
3335	47	40	are	be	VBP
3335	47	41	transited	transit	VBN
3335	47	42	to	to	IN
3335	47	43	a	a	DT
3335	47	44	new	new	JJ
3335	47	45	3D	3d	JJ
3335	47	46	spatial	spatial	JJ
3335	47	47	metaphor	metaphor	NN
3335	47	48	that	that	WDT
3335	47	49	presents	present	VBZ
3335	47	50	images	image	NNS
3335	47	51	in	in	IN
3335	47	52	the	the	DT
3335	47	53	current	current	JJ
3335	47	54	category	category	NN
3335	47	55	.	.	.
3335	48	1	These	these	DT
3335	48	2	images	image	NNS
3335	48	3	,	,	,
3335	48	4	or	or	CC
3335	48	5	slides	slide	NNS
3335	48	6	from	from	IN
3335	48	7	the	the	DT
3335	48	8	digital	digital	JJ
3335	48	9	library	library	NN
3335	48	10	,	,	,
3335	48	11	are	be	VBP
3335	48	12	presented	present	VBN
3335	48	13	in	in	IN
3335	48	14	crystalline	crystalline	NN
3335	48	15	struc-	struc-	NNP
3335	48	16	tures	ture	NNS
3335	48	17	(	(	-LRB-
3335	48	18	figure	figure	NNP
3335	48	19	1	1	CD
3335	48	20	)	)	-RRB-
3335	48	21	.	.	.
3335	49	1	In	in	IN
3335	49	2	this	this	DT
3335	49	3	environment	environment	NN
3335	49	4	,	,	,
3335	49	5	each	each	DT
3335	49	6	crystal	crystal	NN
3335	49	7	represents	represent	VBZ
3335	49	8	a	a	DT
3335	49	9	set	set	NN
3335	49	10	of	of	IN
3335	49	11	images	image	NNS
3335	49	12	with	with	IN
3335	49	13	semantically	semantically	RB
3335	49	14	similar	similar	JJ
3335	49	15	image	image	NN
3335	49	16	descriptions	description	NNS
3335	49	17	.	.	.
3335	50	1	Again	again	RB
3335	50	2	,	,	,
3335	50	3	physical	physical	JJ
3335	50	4	proximity	proximity	NN
3335	50	5	is	be	VBZ
3335	50	6	used	use	VBN
3335	50	7	here	here	RB
3335	50	8	as	as	IN
3335	50	9	a	a	DT
3335	50	10	metaphor	metaphor	NN
3335	50	11	to	to	TO
3335	50	12	encode	encode	VB
3335	50	13	semantic	semantic	JJ
3335	50	14	similarities	similarity	NNS
3335	50	15	among	among	IN
3335	50	16	images	image	NNS
3335	50	17	.	.	.
3335	51	1	The	the	DT
3335	51	2	forma-	forma-	JJ
3335	51	3	tions	tion	NNS
3335	51	4	of	of	IN
3335	51	5	the	the	DT
3335	51	6	crystalline	crystalline	NN
3335	51	7	structures	structure	NNS
3335	51	8	depend	depend	VBP
3335	51	9	on	on	IN
3335	51	10	the	the	DT
3335	51	11	size	size	NN
3335	51	12	of	of	IN
3335	51	13	the	the	DT
3335	51	14	actual	actual	JJ
3335	51	15	search	search	NN
3335	51	16	-	-	HYPH
3335	51	17	result	result	NN
3335	51	18	data	datum	NNS
3335	51	19	set	set	NN
3335	51	20	.	.	.
3335	52	1	Navigation	navigation	NN
3335	52	2	in	in	IN
3335	52	3	this	this	DT
3335	52	4	space	space	NN
3335	52	5	is	be	VBZ
3335	52	6	easy	easy	JJ
3335	52	7	.	.	.
3335	53	1	Users	user	NNS
3335	53	2	can	can	MD
3335	53	3	also	also	RB
3335	53	4	“	"	``
3335	53	5	walk	walk	VB
3335	53	6	”	"	''
3335	53	7	through	through	IN
3335	53	8	this	this	DT
3335	53	9	environment	environment	NN
3335	53	10	and	and	CC
3335	53	11	select	select	VB
3335	53	12	images	image	NNS
3335	53	13	of	of	IN
3335	53	14	interest	interest	NN
3335	53	15	to	to	TO
3335	53	16	display	display	VB
3335	53	17	a	a	DT
3335	53	18	larger-	larger-	NN
3335	53	19	and	and	CC
3335	53	20	clearer	clear	JJR
3335	53	21	-	-	HYPH
3335	53	22	size	size	NN
3335	53	23	version	version	NN
3335	53	24	(	(	-LRB-
3335	53	25	as	as	IN
3335	53	26	two	two	CD
3335	53	27	images	image	NNS
3335	53	28	shown	show	VBN
3335	53	29	in	in	IN
3335	53	30	figure	figure	NN
3335	53	31	1	1	CD
3335	53	32	)	)	-RRB-
3335	53	33	.	.	.
3335	54	1	If	if	IN
3335	54	2	the	the	DT
3335	54	3	larger	large	JJR
3335	54	4	version	version	NN
3335	54	5	is	be	VBZ
3335	54	6	not	not	RB
3335	54	7	satisfactory	satisfactory	JJ
3335	54	8	,	,	,
3335	54	9	it	-PRON-	PRP
3335	54	10	can	can	MD
3335	54	11	be	be	VB
3335	54	12	returned	return	VBN
3335	54	13	to	to	IN
3335	54	14	its	-PRON-	PRP$
3335	54	15	previous	previous	JJ
3335	54	16	iconic	iconic	JJ
3335	54	17	presentation	presentation	NN
3335	54	18	.	.	.
3335	55	1	UC	UC	NNP
3335	55	2	system	system	NN
3335	55	3	:	:	:
3335	55	4	A	a	DT
3335	55	5	Fluid	Fluid	NNP
3335	55	6	Treemap	Treemap	NNP
3335	55	7	Interface	Interface	NNP
3335	55	8	for	for	IN
3335	55	9	digital	digital	JJ
3335	55	10	libraries	library	NNS
3335	55	11	The	the	DT
3335	55	12	UC	UC	NNP
3335	55	13	system	system	NN
3335	55	14	—	—	:
3335	55	15	the	the	DT
3335	55	16	acronym	acronym	NN
3335	55	17	“	"	``
3335	55	18	UC	UC	NNP
3335	55	19	”	"	''
3335	55	20	came	come	VBD
3335	55	21	from	from	IN
3335	55	22	its	-PRON-	PRP$
3335	55	23	original	original	JJ
3335	55	24	(	(	-LRB-
3335	55	25	but	but	CC
3335	55	26	no	no	RB
3335	55	27	longer	long	RBR
3335	55	28	used	use	VBN
3335	55	29	)	)	-RRB-
3335	55	30	internal	internal	JJ
3335	55	31	name	name	NN
3335	55	32	“	"	``
3335	55	33	UpLib	UpLib	NNP
3335	55	34	Client”—was	Client”—was	NNP
3335	55	35	developed	develop	VBN
3335	55	36	by	by	IN
3335	55	37	Good	Good	NNP
3335	55	38	et	et	NNP
3335	55	39	al	al	NNP
3335	55	40	.	.	.
3335	56	1	at	at	IN
3335	56	2	Palo	Palo	NNP
3335	56	3	Alto	Alto	NNP
3335	56	4	Research	Research	NNP
3335	56	5	Center.12	center.12	NN
3335	56	6	It	-PRON-	PRP
3335	56	7	was	be	VBD
3335	56	8	built	build	VBN
3335	56	9	on	on	IN
3335	56	10	the	the	DT
3335	56	11	UpLib	UpLib	NNP
3335	56	12	personal	personal	JJ
3335	56	13	digital	digital	JJ
3335	56	14	-	-	HYPH
3335	56	15	library	library	NN
3335	56	16	platform	platform	NN
3335	56	17	,	,	,
3335	56	18	which	which	WDT
3335	56	19	provides	provide	VBZ
3335	56	20	an	an	DT
3335	56	21	“	"	``
3335	56	22	extensi-	extensi-	NN
3335	56	23	ble	ble	NN
3335	56	24	,	,	,
3335	56	25	format	format	NN
3335	56	26	-	-	HYPH
3335	56	27	agnostic	agnostic	JJ
3335	56	28	,	,	,
3335	56	29	and	and	CC
3335	56	30	secure	secure	JJ
3335	56	31	document	document	NN
3335	56	32	-	-	HYPH
3335	56	33	repository	repository	NN
3335	56	34	layer	layer	NN
3335	56	35	.	.	.
3335	56	36	”13	”13	FW
3335	56	37	“	"	``
3335	56	38	Personal	Personal	NNP
3335	56	39	”	"	''
3335	56	40	here	here	RB
3335	56	41	means	mean	VBZ
3335	56	42	that	that	IN
3335	56	43	the	the	DT
3335	56	44	user	user	NN
3335	56	45	already	already	RB
3335	56	46	has	have	VBZ
3335	56	47	the	the	DT
3335	56	48	right	right	NN
3335	56	49	to	to	TO
3335	56	50	use	use	VB
3335	56	51	all	all	DT
3335	56	52	of	of	IN
3335	56	53	the	the	DT
3335	56	54	data	data	NN
3335	56	55	objects	object	NNS
3335	56	56	in	in	IN
3335	56	57	the	the	DT
3335	56	58	library	library	NN
3335	56	59	,	,	,
3335	56	60	and	and	CC
3335	56	61	already	already	RB
3335	56	62	has	have	VBZ
3335	56	63	local	local	JJ
3335	56	64	possession	possession	NN
3335	56	65	of	of	IN
3335	56	66	those	those	DT
3335	56	67	objects	object	NNS
3335	56	68	.	.	.
3335	57	1	However	however	RB
3335	57	2	,	,	,
3335	57	3	this	this	DT
3335	57	4	visualization	visualization	NN
3335	57	5	can	can	MD
3335	57	6	be	be	VB
3335	57	7	employed	employ	VBN
3335	57	8	in	in	IN
3335	57	9	more	more	JJR
3335	57	10	general	general	JJ
3335	57	11	digi-	digi-	NNP
3335	57	12	tal	tal	NNP
3335	57	13	libraries	library	NNS
3335	57	14	.	.	.
3335	58	1	The	the	DT
3335	58	2	UC	UC	NNP
3335	58	3	system	system	NN
3335	58	4	uses	use	VBZ
3335	58	5	continuous	continuous	JJ
3335	58	6	and	and	CC
3335	58	7	quantum	quantum	JJ
3335	58	8	Treemap	Treemap	NNP
3335	58	9	layouts	layout	NNS
3335	58	10	to	to	TO
3335	58	11	present	present	VB
3335	58	12	collections	collection	NNS
3335	58	13	of	of	IN
3335	58	14	documents	document	NNS
3335	58	15	.	.	.
3335	59	1	Continuous	continuous	JJ
3335	59	2	Treemaps	treemap	NNS
3335	59	3	are	be	VBP
3335	59	4	space	space	NN
3335	59	5	-	-	HYPH
3335	59	6	filling	fill	VBG
3335	59	7	visualizations	visualization	NNS
3335	59	8	of	of	IN
3335	59	9	trees	tree	NNS
3335	59	10	that	that	WDT
3335	59	11	assign	assign	VBP
3335	59	12	an	an	DT
3335	59	13	area	area	NN
3335	59	14	to	to	TO
3335	59	15	tree	tree	NN
3335	59	16	nodes	node	NNS
3335	59	17	based	base	VBN
3335	59	18	on	on	IN
3335	59	19	the	the	DT
3335	59	20	weighting	weighting	NN
3335	59	21	of	of	IN
3335	59	22	the	the	DT
3335	59	23	nodes.14	nodes.14	NNP
3335	59	24	In	in	IN
3335	59	25	continuous	continuous	JJ
3335	59	26	Treemaps	treemap	NNS
3335	59	27	,	,	,
3335	59	28	the	the	DT
3335	59	29	aspect	aspect	NN
3335	59	30	ratio	ratio	NN
3335	59	31	of	of	IN
3335	59	32	the	the	DT
3335	59	33	cells	cell	NNS
3335	59	34	is	be	VBZ
3335	59	35	not	not	RB
3335	59	36	constrained	constrain	VBN
3335	59	37	,	,	,
3335	59	38	although	although	IN
3335	59	39	square	square	JJ
3335	59	40	cells	cell	NNS
3335	59	41	are	be	VBP
3335	59	42	often	often	RB
3335	59	43	preferred	prefer	VBN
3335	59	44	.	.	.
3335	60	1	Quantum	Quantum	NNP
3335	60	2	Treemaps	Treemaps	NNPS
3335	60	3	extend	extend	VBP
3335	60	4	this	this	DT
3335	60	5	idea	idea	NN
3335	60	6	by	by	IN
3335	60	7	making	make	VBG
3335	60	8	cell	cell	NN
3335	60	9	dimensions	dimension	NNS
3335	60	10	an	an	DT
3335	60	11	even	even	RB
3335	60	12	multiple	multiple	NN
3335	60	13	of	of	IN
3335	60	14	a	a	DT
3335	60	15	unit	unit	NN
3335	60	16	size.15	size.15	NNP
3335	60	17	The	the	DT
3335	60	18	Treemap	Treemap	NNP
3335	60	19	visualizations	visualization	NNS
3335	60	20	provide	provide	VBP
3335	60	21	meaningful	meaningful	JJ
3335	60	22	overviews	overviews	NN
3335	60	23	of	of	IN
3335	60	24	document	document	NN
3335	60	25	collections	collection	NNS
3335	60	26	and	and	CC
3335	60	27	fast	fast	JJ
3335	60	28	,	,	,
3335	60	29	intuitive	intuitive	JJ
3335	60	30	navigation	navigation	NN
3335	60	31	among	among	IN
3335	60	32	multiple	multiple	JJ
3335	60	33	documents	document	NNS
3335	60	34	in	in	IN
3335	60	35	a	a	DT
3335	60	36	working	working	NN
3335	60	37	set	set	NN
3335	60	38	.	.	.
3335	61	1	An	an	DT
3335	61	2	important	important	JJ
3335	61	3	aspect	aspect	NN
3335	61	4	of	of	IN
3335	61	5	the	the	DT
3335	61	6	interface	interface	NN
3335	61	7	is	be	VBZ
3335	61	8	the	the	DT
3335	61	9	fluidity	fluidity	NN
3335	61	10	of	of	IN
3335	61	11	navigation	navigation	NN
3335	61	12	.	.	.
3335	62	1	This	this	DT
3335	62	2	allows	allow	VBZ
3335	62	3	the	the	DT
3335	62	4	user	user	NN
3335	62	5	to	to	TO
3335	62	6	focus	focus	VB
3335	62	7	on	on	IN
3335	62	8	the	the	DT
3335	62	9	docu-	docu-	NN
3335	62	10	ments	ment	NNS
3335	62	11	rather	rather	RB
3335	62	12	than	than	IN
3335	62	13	on	on	IN
3335	62	14	interacting	interact	VBG
3335	62	15	with	with	IN
3335	62	16	the	the	DT
3335	62	17	tool	tool	NN
3335	62	18	.	.	.
3335	63	1	The	the	DT
3335	63	2	inter-	inter-	NN
3335	63	3	face	face	NN
3335	63	4	allows	allow	VBZ
3335	63	5	a	a	DT
3335	63	6	user	user	NN
3335	63	7	to	to	TO
3335	63	8	zoom	zoom	VB
3335	63	9	in	in	RP
3335	63	10	on	on	IN
3335	63	11	an	an	DT
3335	63	12	object	object	NN
3335	63	13	with	with	IN
3335	63	14	a	a	DT
3335	63	15	left	left	JJ
3335	63	16	-	-	HYPH
3335	63	17	click	click	NN
3335	63	18	,	,	,
3335	63	19	and	and	CC
3335	63	20	to	to	TO
3335	63	21	zoom	zoom	VB
3335	63	22	out	out	RP
3335	63	23	when	when	WRB
3335	63	24	the	the	DT
3335	63	25	user	user	NN
3335	63	26	clicks	click	VBZ
3335	63	27	on	on	IN
3335	63	28	the	the	DT
3335	63	29	background	background	NN
3335	63	30	;	;	:
3335	63	31	Figure	figure	NN
3335	63	32	1	1	CD
3335	63	33	.	.	.
3335	64	1	LVis	lvis	XX
3335	64	2	:	:	:
3335	64	3	image	image	NN
3335	64	4	crystals	crystal	NNS
3335	64	5	and	and	CC
3335	64	6	panels	panel	NNS
3335	64	7	90	90	CD
3335	64	8	INFORMATION	information	NN
3335	64	9	TECHNOLOGY	technology	NN
3335	64	10	AND	and	CC
3335	64	11	LIBRARIES	LIBRARIES	NNP
3335	64	12	|	|	NNP
3335	64	13	JUNE	JUNE	NNP
3335	64	14	2006	2006	CD
3335	64	15	however	however	RB
3335	64	16	,	,	,
3335	64	17	the	the	DT
3335	64	18	combination	combination	NN
3335	64	19	of	of	IN
3335	64	20	a	a	DT
3335	64	21	“	"	``
3335	64	22	zoomable	zoomable	JJ
3335	64	23	”	"	''
3335	64	24	user	user	NN
3335	64	25	interface	interface	NN
3335	64	26	and	and	CC
3335	64	27	continuous	continuous	JJ
3335	64	28	Treemaps	Treemaps	NNPS
3335	64	29	leads	lead	VBZ
3335	64	30	to	to	IN
3335	64	31	a	a	DT
3335	64	32	problem	problem	NN
3335	64	33	:	:	:
3335	64	34	conflicts	conflict	NNS
3335	64	35	with	with	IN
3335	64	36	aspect	aspect	NN
3335	64	37	ratios	ratio	NNS
3335	64	38	.	.	.
3335	65	1	To	to	TO
3335	65	2	solve	solve	VB
3335	65	3	this	this	DT
3335	65	4	problem	problem	NN
3335	65	5	,	,	,
3335	65	6	Good	Good	NNP
3335	65	7	et	et	NNP
3335	65	8	al	al	NNP
3335	65	9	.	.	.
3335	66	1	proposed	propose	VBN
3335	66	2	to	to	TO
3335	66	3	zoom	zoom	VB
3335	66	4	and	and	CC
3335	66	5	morph	morph	VB
3335	66	6	the	the	DT
3335	66	7	cell	cell	NN
3335	66	8	to	to	IN
3335	66	9	the	the	DT
3335	66	10	window	window	NN
3335	66	11	size	size	NN
3335	66	12	while	while	IN
3335	66	13	leaving	leave	VBG
3335	66	14	the	the	DT
3335	66	15	rest	rest	NN
3335	66	16	of	of	IN
3335	66	17	the	the	DT
3335	66	18	layout	layout	NN
3335	66	19	in	in	IN
3335	66	20	place.16	place.16	NNP
3335	66	21	Thus	Thus	NNP
3335	66	22	the	the	DT
3335	66	23	visual	visual	JJ
3335	66	24	disturbance	disturbance	NN
3335	66	25	of	of	IN
3335	66	26	the	the	DT
3335	66	27	display	display	NN
3335	66	28	is	be	VBZ
3335	66	29	minimized	minimize	VBN
3335	66	30	since	since	IN
3335	66	31	only	only	RB
3335	66	32	a	a	DT
3335	66	33	single	single	JJ
3335	66	34	cell	cell	NN
3335	66	35	moves	move	NNS
3335	66	36	.	.	.
3335	67	1	With	with	IN
3335	67	2	respect	respect	NN
3335	67	3	to	to	IN
3335	67	4	searching	search	VBG
3335	67	5	,	,	,
3335	67	6	this	this	DT
3335	67	7	system	system	NN
3335	67	8	provides	provide	VBZ
3335	67	9	sev-	sev-	JJ
3335	67	10	eral	eral	JJ
3335	67	11	methods	method	NNS
3335	67	12	to	to	TO
3335	67	13	filter	filter	VB
3335	67	14	results	result	NNS
3335	67	15	.	.	.
3335	68	1	First	first	RB
3335	68	2	,	,	,
3335	68	3	its	-PRON-	PRP$
3335	68	4	interface	interface	NN
3335	68	5	includes	include	VBZ
3335	68	6	a	a	DT
3335	68	7	mechanism	mechanism	NN
3335	68	8	to	to	TO
3335	68	9	search	search	VB
3335	68	10	for	for	IN
3335	68	11	specific	specific	JJ
3335	68	12	content	content	NN
3335	68	13	within	within	IN
3335	68	14	the	the	DT
3335	68	15	documents	document	NNS
3335	68	16	.	.	.
3335	69	1	As	as	IN
3335	69	2	letters	letter	NNS
3335	69	3	are	be	VBP
3335	69	4	added	add	VBN
3335	69	5	to	to	IN
3335	69	6	the	the	DT
3335	69	7	search	search	NN
3335	69	8	query	query	NN
3335	69	9	,	,	,
3335	69	10	the	the	DT
3335	69	11	system	system	NN
3335	69	12	increasingly	increasingly	RB
3335	69	13	highlights	highlight	VBZ
3335	69	14	matching	match	VBG
3335	69	15	documents	document	NNS
3335	69	16	to	to	TO
3335	69	17	immediately	immediately	RB
3335	69	18	indicate	indicate	VB
3335	69	19	matching	match	VBG
3335	69	20	documents	document	NNS
3335	69	21	.	.	.
3335	70	1	Secondly	secondly	RB
3335	70	2	,	,	,
3335	70	3	the	the	DT
3335	70	4	user	user	NN
3335	70	5	can	can	MD
3335	70	6	also	also	RB
3335	70	7	choose	choose	VB
3335	70	8	to	to	TO
3335	70	9	update	update	VB
3335	70	10	the	the	DT
3335	70	11	view	view	NN
3335	70	12	to	to	TO
3335	70	13	display	display	VB
3335	70	14	only	only	RB
3335	70	15	those	those	DT
3335	70	16	documents	document	NNS
3335	70	17	that	that	WDT
3335	70	18	match	match	VBP
3335	70	19	the	the	DT
3335	70	20	current	current	JJ
3335	70	21	query	query	NN
3335	70	22	.	.	.
3335	71	1	Figure	figure	NN
3335	71	2	2	2	CD
3335	71	3	gives	give	VBZ
3335	71	4	an	an	DT
3335	71	5	example	example	NN
3335	71	6	of	of	IN
3335	71	7	a	a	DT
3335	71	8	user	user	NN
3335	71	9	-	-	HYPH
3335	71	10	initiated	initiate	VBN
3335	71	11	query	query	NN
3335	71	12	process	process	NN
3335	71	13	.	.	.
3335	72	1	In	in	IN
3335	72	2	the	the	DT
3335	72	3	scenario	scenario	NN
3335	72	4	described	describe	VBN
3335	72	5	in	in	IN
3335	72	6	figure	figure	NN
3335	72	7	2	2	CD
3335	72	8	,	,	,
3335	72	9	the	the	DT
3335	72	10	user	user	NN
3335	72	11	first	first	RB
3335	72	12	enters	enter	VBZ
3335	72	13	the	the	DT
3335	72	14	search	search	NN
3335	72	15	terms	term	NNS
3335	72	16	(	(	-LRB-
3335	72	17	2.1	2.1	CD
3335	72	18	)	)	-RRB-
3335	72	19	,	,	,
3335	72	20	and	and	CC
3335	72	21	interactive	interactive	JJ
3335	72	22	highlights	highlight	NNS
3335	72	23	then	then	RB
3335	72	24	appear	appear	VBP
3335	72	25	for	for	IN
3335	72	26	groups	group	NNS
3335	72	27	with	with	IN
3335	72	28	matching	match	VBG
3335	72	29	documents	document	NNS
3335	72	30	(	(	-LRB-
3335	72	31	2.2	2.2	CD
3335	72	32	)	)	-RRB-
3335	72	33	.	.	.
3335	73	1	The	the	DT
3335	73	2	user	user	NN
3335	73	3	presses	press	VBZ
3335	73	4	a	a	DT
3335	73	5	button	button	NN
3335	73	6	to	to	TO
3335	73	7	limit	limit	VB
3335	73	8	the	the	DT
3335	73	9	view	view	NN
3335	73	10	to	to	IN
3335	73	11	only	only	RB
3335	73	12	the	the	DT
3335	73	13	matching	match	VBG
3335	73	14	documents	document	NNS
3335	73	15	(	(	-LRB-
3335	73	16	2.3	2.3	CD
3335	73	17	)	)	-RRB-
3335	73	18	.	.	.
3335	74	1	Finally	finally	RB
3335	74	2	,	,	,
3335	74	3	the	the	DT
3335	74	4	user	user	NN
3335	74	5	zooms	zoom	NNS
3335	74	6	in	in	RP
3335	74	7	on	on	IN
3335	74	8	a	a	DT
3335	74	9	document	document	NN
3335	74	10	and	and	CC
3335	74	11	begins	begin	VBZ
3335	74	12	reading	read	VBG
3335	74	13	with	with	IN
3335	74	14	an	an	DT
3335	74	15	integrated	integrated	JJ
3335	74	16	reading	reading	NN
3335	74	17	tool	tool	NN
3335	74	18	.	.	.
3335	75	1	(	(	-LRB-
3335	75	2	2.4	2.4	LS
3335	75	3	)	)	-RRB-
3335	75	4	The	the	DT
3335	75	5	UC	UC	NNP
3335	75	6	system	system	NN
3335	75	7	also	also	RB
3335	75	8	offers	offer	VBZ
3335	75	9	a	a	DT
3335	75	10	mechanism	mechanism	NN
3335	75	11	that	that	WDT
3335	75	12	allows	allow	VBZ
3335	75	13	the	the	DT
3335	75	14	user	user	NN
3335	75	15	to	to	TO
3335	75	16	compare	compare	VB
3335	75	17	multiple	multiple	JJ
3335	75	18	documents	document	NNS
3335	75	19	.	.	.
3335	76	1	After	after	IN
3335	76	2	users	user	NNS
3335	76	3	retrieve	retrieve	VBP
3335	76	4	a	a	DT
3335	76	5	set	set	NN
3335	76	6	of	of	IN
3335	76	7	documents	document	NNS
3335	76	8	through	through	IN
3335	76	9	a	a	DT
3335	76	10	search	search	NN
3335	76	11	,	,	,
3335	76	12	they	-PRON-	PRP
3335	76	13	can	can	MD
3335	76	14	press	press	VB
3335	76	15	a	a	DT
3335	76	16	button	button	NN
3335	76	17	to	to	TO
3335	76	18	“	"	``
3335	76	19	explode	explode	VB
3335	76	20	”	"	''
3335	76	21	the	the	DT
3335	76	22	documents	document	NNS
3335	76	23	to	to	IN
3335	76	24	pages	page	NNS
3335	76	25	.	.	.
3335	77	1	They	-PRON-	PRP
3335	77	2	can	can	MD
3335	77	3	continue	continue	VB
3335	77	4	zooming	zoom	VBG
3335	77	5	in	in	RP
3335	77	6	to	to	IN
3335	77	7	a	a	DT
3335	77	8	portion	portion	NN
3335	77	9	of	of	IN
3335	77	10	a	a	DT
3335	77	11	single	single	JJ
3335	77	12	docu-	docu-	NN
3335	77	13	ment	ment	NN
3335	77	14	,	,	,
3335	77	15	and	and	CC
3335	77	16	then	then	RB
3335	77	17	select	select	VB
3335	77	18	a	a	DT
3335	77	19	document	document	NN
3335	77	20	page	page	NN
3335	77	21	to	to	TO
3335	77	22	read	read	VB
3335	77	23	with	with	IN
3335	77	24	the	the	DT
3335	77	25	integrated	integrated	JJ
3335	77	26	reading	reading	NN
3335	77	27	tool	tool	NN
3335	77	28	.	.	.
3335	78	1	In	in	IN
3335	78	2	short	short	JJ
3335	78	3	,	,	,
3335	78	4	the	the	DT
3335	78	5	UC	UC	NNP
3335	78	6	system	system	NN
3335	78	7	uses	use	VBZ
3335	78	8	Treemaps	Treemaps	NNPS
3335	78	9	as	as	IN
3335	78	10	the	the	DT
3335	78	11	primary	primary	JJ
3335	78	12	visual	visual	JJ
3335	78	13	metaphor	metaphor	NN
3335	78	14	.	.	.
3335	79	1	It	-PRON-	PRP
3335	79	2	also	also	RB
3335	79	3	uses	use	VBZ
3335	79	4	various	various	JJ
3335	79	5	visualization	visualization	NN
3335	79	6	tech-	tech-	NN
3335	79	7	niques	nique	NNS
3335	79	8	that	that	WDT
3335	79	9	enhance	enhance	VBP
3335	79	10	user	user	NN
3335	79	11	interactions	interaction	NNS
3335	79	12	,	,	,
3335	79	13	such	such	JJ
3335	79	14	as	as	IN
3335	79	15	zooming	zooming	NN
3335	79	16	,	,	,
3335	79	17	interactively	interactively	RB
3335	79	18	highlighting	highlight	VBG
3335	79	19	,	,	,
3335	79	20	exploding	explode	VBG
3335	79	21	,	,	,
3335	79	22	etc	etc	FW
3335	79	23	.	.	.
3335	80	1	ActiveGraph	ActiveGraph	NNP
3335	80	2	ActiveGraph	ActiveGraph	NNP
3335	80	3	is	be	VBZ
3335	80	4	an	an	DT
3335	80	5	information	information	NN
3335	80	6	-	-	HYPH
3335	80	7	visualization	visualization	NN
3335	80	8	tool	tool	NN
3335	80	9	de-	de-	XX
3335	80	10	signed	sign	VBN
3335	80	11	by	by	IN
3335	80	12	Marks	Marks	NNP
3335	80	13	et	et	NNP
3335	80	14	al	al	NNP
3335	80	15	.	.	.
3335	81	1	(	(	-LRB-
3335	81	2	2000	2000	CD
3335	81	3	)	)	-RRB-
3335	81	4	at	at	IN
3335	81	5	Los	Los	NNP
3335	81	6	Alamos	Alamos	NNP
3335	81	7	National	National	NNP
3335	81	8	Laboratory	Laboratory	NNP
3335	81	9	(	(	-LRB-
3335	81	10	LANL).17	LANL).17	NNP
3335	81	11	It	-PRON-	PRP
3335	81	12	aims	aim	VBZ
3335	81	13	to	to	TO
3335	81	14	provide	provide	VB
3335	81	15	users	user	NNS
3335	81	16	with	with	IN
3335	81	17	a	a	DT
3335	81	18	concise	concise	JJ
3335	81	19	,	,	,
3335	81	20	customizable	customizable	JJ
3335	81	21	view	view	NN
3335	81	22	of	of	IN
3335	81	23	documents	document	NNS
3335	81	24	in	in	IN
3335	81	25	a	a	DT
3335	81	26	digital	digital	JJ
3335	81	27	library	library	NN
3335	81	28	.	.	.
3335	82	1	In	in	IN
3335	82	2	this	this	DT
3335	82	3	system	system	NN
3335	82	4	,	,	,
3335	82	5	a	a	DT
3335	82	6	set	set	NN
3335	82	7	of	of	IN
3335	82	8	digital	digital	JJ
3335	82	9	-	-	HYPH
3335	82	10	library	library	NN
3335	82	11	documents	document	NNS
3335	82	12	is	be	VBZ
3335	82	13	represented	represent	VBN
3335	82	14	as	as	IN
3335	82	15	a	a	DT
3335	82	16	data	data	NN
3335	82	17	set	set	VBN
3335	82	18	in	in	IN
3335	82	19	a	a	DT
3335	82	20	2D	2d	NN
3335	82	21	or	or	CC
3335	82	22	3D	3d	NN
3335	82	23	scatter	scatter	NN
3335	82	24	plot	plot	NN
3335	82	25	.	.	.
3335	83	1	The	the	DT
3335	83	2	data	datum	NNS
3335	83	3	set	set	NN
3335	83	4	can	can	MD
3335	83	5	represent	represent	VB
3335	83	6	any	any	DT
3335	83	7	digital	digital	JJ
3335	83	8	-	-	HYPH
3335	83	9	library	library	NN
3335	83	10	objects	object	NNS
3335	83	11	in	in	IN
3335	83	12	vari-	vari-	NNP
3335	83	13	ous	ous	JJ
3335	83	14	formats	format	NNS
3335	83	15	including	include	VBG
3335	83	16	books	book	NNS
3335	83	17	,	,	,
3335	83	18	journals	journal	NNS
3335	83	19	,	,	,
3335	83	20	papers	paper	NNS
3335	83	21	,	,	,
3335	83	22	images	image	NNS
3335	83	23	,	,	,
3335	83	24	and	and	CC
3335	83	25	Web	web	NN
3335	83	26	resources	resource	NNS
3335	83	27	.	.	.
3335	84	1	Marks	Marks	NNP
3335	84	2	et	et	NNP
3335	84	3	al	al	NNP
3335	84	4	.	.	.
3335	85	1	used	use	VBN
3335	85	2	six	six	CD
3335	85	3	visual	visual	JJ
3335	85	4	attributes	attribute	NNS
3335	85	5	of	of	IN
3335	85	6	the	the	DT
3335	85	7	scat-	scat-	JJ
3335	85	8	ter	ter	NN
3335	85	9	plot	plot	NN
3335	85	10	:	:	:
3335	85	11	the	the	DT
3335	85	12	X-	X-	NNP
3335	85	13	,	,	,
3335	85	14	Y-	y-	NN
3335	85	15	,	,	,
3335	85	16	and	and	CC
3335	85	17	Z	z	NN
3335	85	18	-	-	HYPH
3335	85	19	axes	axis	NNS
3335	85	20	,	,	,
3335	85	21	color	color	NN
3335	85	22	,	,	,
3335	85	23	size	size	NN
3335	85	24	,	,	,
3335	85	25	and	and	CC
3335	85	26	shape	shape	NN
3335	85	27	to	to	TO
3335	85	28	encode	encode	VB
3335	85	29	the	the	DT
3335	85	30	bibliographic	bibliographic	JJ
3335	85	31	information	information	NN
3335	85	32	of	of	IN
3335	85	33	documents	document	NNS
3335	85	34	in	in	IN
3335	85	35	a	a	DT
3335	85	36	digital	digital	JJ
3335	85	37	library	library	NN
3335	85	38	,	,	,
3335	85	39	including	include	VBG
3335	85	40	title	title	NN
3335	85	41	,	,	,
3335	85	42	author	author	NN
3335	85	43	,	,	,
3335	85	44	date	date	NN
3335	85	45	of	of	IN
3335	85	46	publication	publication	NN
3335	85	47	,	,	,
3335	85	48	and	and	CC
3335	85	49	number	number	NN
3335	85	50	of	of	IN
3335	85	51	citations.18	citations.18	NNP
3335	85	52	The	the	DT
3335	85	53	user	user	NN
3335	85	54	can	can	MD
3335	85	55	select	select	VB
3335	85	56	and	and	CC
3335	85	57	adjust	adjust	VB
3335	85	58	these	these	DT
3335	85	59	attributes	attribute	NNS
3335	85	60	from	from	IN
3335	85	61	a	a	DT
3335	85	62	control	control	NN
3335	85	63	panel	panel	NN
3335	85	64	on	on	IN
3335	85	65	the	the	DT
3335	85	66	right	right	JJ
3335	85	67	-	-	HYPH
3335	85	68	hand	hand	NN
3335	85	69	side	side	NN
3335	85	70	of	of	IN
3335	85	71	the	the	DT
3335	85	72	screen	screen	NN
3335	85	73	.	.	.
3335	86	1	Thus	thus	RB
3335	86	2	,	,	,
3335	86	3	ActiveGraph	ActiveGraph	NNP
3335	86	4	allows	allow	VBZ
3335	86	5	users	user	NNS
3335	86	6	to	to	IN
3335	86	7	both	both	DT
3335	86	8	view	view	VB
3335	86	9	and	and	CC
3335	86	10	customize	customize	VB
3335	86	11	the	the	DT
3335	86	12	contents	content	NNS
3335	86	13	of	of	IN
3335	86	14	a	a	DT
3335	86	15	digital	digital	JJ
3335	86	16	library	library	NN
3335	86	17	.	.	.
3335	87	1	The	the	DT
3335	87	2	main	main	JJ
3335	87	3	visual	visual	JJ
3335	87	4	representation	representation	NN
3335	87	5	of	of	IN
3335	87	6	this	this	DT
3335	87	7	tool	tool	NN
3335	87	8	is	be	VBZ
3335	87	9	a	a	DT
3335	87	10	scatter	scatter	NN
3335	87	11	plot	plot	NN
3335	87	12	.	.	.
3335	88	1	Scatter	scatter	NN
3335	88	2	plots	plot	NNS
3335	88	3	have	have	VBP
3335	88	4	been	be	VBN
3335	88	5	used	use	VBN
3335	88	6	to	to	TO
3335	88	7	represent	represent	VB
3335	88	8	large	large	JJ
3335	88	9	sets	set	NNS
3335	88	10	of	of	IN
3335	88	11	data	datum	NNS
3335	88	12	for	for	IN
3335	88	13	a	a	DT
3335	88	14	long	long	JJ
3335	88	15	time	time	NN
3335	88	16	.	.	.
3335	89	1	They	-PRON-	PRP
3335	89	2	provide	provide	VBP
3335	89	3	an	an	DT
3335	89	4	overview	overview	NN
3335	89	5	of	of	IN
3335	89	6	a	a	DT
3335	89	7	data	data	NN
3335	89	8	set	set	NN
3335	89	9	and	and	CC
3335	89	10	show	show	VBP
3335	89	11	the	the	DT
3335	89	12	distribution	distribution	NN
3335	89	13	of	of	IN
3335	89	14	data	datum	NNS
3335	89	15	points	point	NNS
3335	89	16	clearly	clearly	RB
3335	89	17	,	,	,
3335	89	18	revealing	reveal	VBG
3335	89	19	clusters	cluster	NNS
3335	89	20	and	and	CC
3335	89	21	statistical	statistical	JJ
3335	89	22	information.19	information.19	NNP
3335	89	23	Hence	Hence	NNP
3335	89	24	,	,	,
3335	89	25	these	these	DT
3335	89	26	scatter	scatter	NN
3335	89	27	plots	plot	NNS
3335	89	28	make	make	VBP
3335	89	29	it	-PRON-	PRP
3335	89	30	possible	possible	JJ
3335	89	31	for	for	IN
3335	89	32	users	user	NNS
3335	89	33	to	to	TO
3335	89	34	perceive	perceive	VB
3335	89	35	meaningful	meaningful	JJ
3335	89	36	patterns	pattern	NNS
3335	89	37	of	of	IN
3335	89	38	the	the	DT
3335	89	39	data	datum	NNS
3335	89	40	.	.	.
3335	90	1	An	an	DT
3335	90	2	example	example	NN
3335	90	3	of	of	IN
3335	90	4	using	use	VBG
3335	90	5	ActiveGraph	ActiveGraph	NNP
3335	90	6	scatter	scatter	NN
3335	90	7	plots	plot	NNS
3335	90	8	to	to	TO
3335	90	9	visualize	visualize	VB
3335	90	10	citation	citation	NN
3335	90	11	data	datum	NNS
3335	90	12	for	for	IN
3335	90	13	postdoctoral	postdoctoral	JJ
3335	90	14	researchers	researcher	NNS
3335	90	15	at	at	IN
3335	90	16	LANL	LANL	NNP
3335	90	17	is	be	VBZ
3335	90	18	given	give	VBN
3335	90	19	in	in	IN
3335	90	20	figure	figure	NN
3335	90	21	3	3	CD
3335	90	22	.	.	.
3335	91	1	This	this	DT
3335	91	2	scatter	scatter	NN
3335	91	3	plot	plot	NN
3335	91	4	intends	intend	VBZ
3335	91	5	to	to	TO
3335	91	6	provide	provide	VB
3335	91	7	users	user	NNS
3335	91	8	with	with	IN
3335	91	9	information	information	NN
3335	91	10	,	,	,
3335	91	11	such	such	JJ
3335	91	12	as	as	IN
3335	91	13	the	the	DT
3335	91	14	number	number	NN
3335	91	15	of	of	IN
3335	91	16	times	time	NNS
3335	91	17	their	-PRON-	PRP$
3335	91	18	papers	paper	NNS
3335	91	19	published	publish	VBN
3335	91	20	between	between	IN
3335	91	21	1998	1998	CD
3335	91	22	and	and	CC
3335	91	23	2002	2002	CD
3335	91	24	were	be	VBD
3335	91	25	cited	cite	VBN
3335	91	26	.	.	.
3335	92	1	The	the	DT
3335	92	2	visualization	visualization	NN
3335	92	3	is	be	VBZ
3335	92	4	based	base	VBN
3335	92	5	on	on	IN
3335	92	6	the	the	DT
3335	92	7	metadata	metadata	NN
3335	92	8	in	in	IN
3335	92	9	the	the	DT
3335	92	10	LANL	LANL	NNP
3335	92	11	digital	digital	JJ
3335	92	12	library	library	NN
3335	92	13	.	.	.
3335	93	1	In	in	IN
3335	93	2	this	this	DT
3335	93	3	scatter	scatter	NN
3335	93	4	plot	plot	NN
3335	93	5	,	,	,
3335	93	6	the	the	DT
3335	93	7	postdoctoral	postdoctoral	JJ
3335	93	8	researcher	researcher	NN
3335	93	9	’s	’s	POS
3335	93	10	last	last	JJ
3335	93	11	name	name	NN
3335	93	12	is	be	VBZ
3335	93	13	mapped	map	VBN
3335	93	14	to	to	IN
3335	93	15	the	the	DT
3335	93	16	X	x	NN
3335	93	17	-	-	NN
3335	93	18	axis	axis	NNP
3335	93	19	and	and	CC
3335	93	20	the	the	DT
3335	93	21	number	number	NN
3335	93	22	of	of	IN
3335	93	23	cita-	cita-	JJ
3335	93	24	tions	tion	NNS
3335	93	25	is	be	VBZ
3335	93	26	mapped	map	VBN
3335	93	27	to	to	IN
3335	93	28	the	the	DT
3335	93	29	Y	y	NN
3335	93	30	-	-	HYPH
3335	93	31	axis	axis	NNP
3335	93	32	.	.	.
3335	94	1	A	a	DT
3335	94	2	pixel	pixel	NN
3335	94	3	of	of	IN
3335	94	4	a	a	DT
3335	94	5	particular	particular	JJ
3335	94	6	color	color	NN
3335	94	7	can	can	MD
3335	94	8	provide	provide	VB
3335	94	9	two	two	CD
3335	94	10	pieces	piece	NNS
3335	94	11	of	of	IN
3335	94	12	information	information	NN
3335	94	13	,	,	,
3335	94	14	for	for	IN
3335	94	15	example	example	NN
3335	94	16	,	,	,
3335	94	17	by	by	IN
3335	94	18	encoding	encode	VBG
3335	94	19	a	a	DT
3335	94	20	paper	paper	NN
3335	94	21	and	and	CC
3335	94	22	the	the	DT
3335	94	23	subject	subject	JJ
3335	94	24	category	category	NN
3335	94	25	of	of	IN
3335	94	26	the	the	DT
3335	94	27	paper	paper	NN
3335	94	28	.	.	.
3335	95	1	A	a	DT
3335	95	2	group	group	NN
3335	95	3	of	of	IN
3335	95	4	pixels	pixel	NNS
3335	95	5	of	of	IN
3335	95	6	a	a	DT
3335	95	7	particular	particular	JJ
3335	95	8	size	size	NN
3335	95	9	,	,	,
3335	95	10	shape	shape	NN
3335	95	11	,	,	,
3335	95	12	and	and	CC
3335	95	13	color	color	NN
3335	95	14	can	can	MD
3335	95	15	provide	provide	VB
3335	95	16	four	four	CD
3335	95	17	pieces	piece	NNS
3335	95	18	of	of	IN
3335	95	19	information	information	NN
3335	95	20	by	by	IN
3335	95	21	encoding	encode	VBG
3335	95	22	a	a	DT
3335	95	23	paper	paper	NN
3335	95	24	,	,	,
3335	95	25	the	the	DT
3335	95	26	subject	subject	JJ
3335	95	27	category	category	NN
3335	95	28	of	of	IN
3335	95	29	the	the	DT
3335	95	30	paper	paper	NN
3335	95	31	,	,	,
3335	95	32	whether	whether	IN
3335	95	33	the	the	DT
3335	95	34	paper	paper	NN
3335	95	35	has	have	VBZ
3335	95	36	been	be	VBN
3335	95	37	cited	cite	VBN
3335	95	38	,	,	,
3335	95	39	and	and	CC
3335	95	40	whether	whether	IN
3335	95	41	the	the	DT
3335	95	42	paper	paper	NN
3335	95	43	has	have	VBZ
3335	95	44	been	be	VBN
3335	95	45	read	read	VBN
3335	95	46	by	by	IN
3335	95	47	another	another	DT
3335	95	48	user	user	NN
3335	95	49	of	of	IN
3335	95	50	the	the	DT
3335	95	51	collaborative	collaborative	JJ
3335	95	52	library	library	NN
3335	95	53	.	.	.
3335	96	1	From	from	IN
3335	96	2	this	this	DT
3335	96	3	scatter	scatter	NN
3335	96	4	plot	plot	NN
3335	96	5	,	,	,
3335	96	6	users	user	NNS
3335	96	7	can	can	MD
3335	96	8	easily	easily	RB
3335	96	9	learn	learn	VB
3335	96	10	the	the	DT
3335	96	11	citation	citation	NN
3335	96	12	pattern	pattern	NN
3335	96	13	of	of	IN
3335	96	14	these	these	DT
3335	96	15	papers	paper	NNS
3335	96	16	.	.	.
3335	97	1	Unlike	unlike	IN
3335	97	2	some	some	DT
3335	97	3	other	other	JJ
3335	97	4	scatter	scatter	NN
3335	97	5	plot	plot	NN
3335	97	6	applications	application	NNS
3335	97	7	such	such	JJ
3335	97	8	as	as	IN
3335	97	9	HomeFinder	HomeFinder	NNP
3335	97	10	and	and	CC
3335	97	11	FilmFinder	FilmFinder	NNP
3335	97	12	,	,	,
3335	97	13	ActiveGraph	ActiveGraph	NNP
3335	97	14	uses	use	VBZ
3335	97	15	different	different	JJ
3335	97	16	filters	filter	NNS
3335	97	17	for	for	IN
3335	97	18	queries	query	NNS
3335	97	19	.	.	.
3335	98	1	Instead	instead	RB
3335	98	2	of	of	IN
3335	98	3	filter	filter	NN
3335	98	4	sliders	slider	NNS
3335	98	5	,	,	,
3335	98	6	it	-PRON-	PRP
3335	98	7	uses	use	VBZ
3335	98	8	filter	filter	NN
3335	98	9	lists	list	NNS
3335	98	10	,	,	,
3335	98	11	which	which	WDT
3335	98	12	consist	consist	VBP
3335	98	13	of	of	IN
3335	98	14	selection	selection	NN
3335	98	15	list	list	NN
3335	98	16	boxes	box	NNS
3335	98	17	,	,	,
3335	98	18	one	one	CD
3335	98	19	for	for	IN
3335	98	20	each	each	DT
3335	98	21	data	datum	NNS
3335	98	22	attribute	attribute	NN
3335	98	23	.	.	.
3335	99	1	These	these	DT
3335	99	2	filter	filter	NN
3335	99	3	lists	list	NNS
3335	99	4	can	can	MD
3335	99	5	provide	provide	VB
3335	99	6	users	user	NNS
3335	99	7	with	with	IN
3335	99	8	functionality	functionality	NN
3335	99	9	that	that	WDT
3335	99	10	is	be	VBZ
3335	99	11	important	important	JJ
3335	99	12	in	in	IN
3335	99	13	the	the	DT
3335	99	14	context	context	NN
3335	99	15	of	of	IN
3335	99	16	digital	digital	JJ
3335	99	17	libraries	library	NNS
3335	99	18	.	.	.
3335	100	1	ActiveGraph	ActiveGraph	NNP
3335	100	2	allows	allow	VBZ
3335	100	3	users	user	NNS
3335	100	4	to	to	TO
3335	100	5	manipulate	manipulate	VB
3335	100	6	the	the	DT
3335	100	7	display	display	NN
3335	100	8	of	of	IN
3335	100	9	data	datum	NNS
3335	100	10	in	in	IN
3335	100	11	another	another	DT
3335	100	12	manner	manner	NN
3335	100	13	by	by	IN
3335	100	14	applying	apply	VBG
3335	100	15	a	a	DT
3335	100	16	logarith-	logarith-	NN
3335	100	17	mic	mic	NNP
3335	100	18	transformation	transformation	NN
3335	100	19	.	.	.
3335	101	1	As	as	IN
3335	101	2	some	some	DT
3335	101	3	data	data	NN
3335	101	4	sets	set	NNS
3335	101	5	,	,	,
3335	101	6	such	such	JJ
3335	101	7	as	as	IN
3335	101	8	citation	citation	NN
3335	101	9	data	datum	NNS
3335	101	10	,	,	,
3335	101	11	can	can	MD
3335	101	12	frequently	frequently	RB
3335	101	13	have	have	VB
3335	101	14	an	an	DT
3335	101	15	exponential	exponential	JJ
3335	101	16	distribution	distribution	NN
3335	101	17	,	,	,
3335	101	18	the	the	DT
3335	101	19	Figure	figure	NN
3335	101	20	2	2	CD
3335	101	21	.	.	.
3335	102	1	The	the	DT
3335	102	2	search	search	NN
3335	102	3	interface	interface	NN
3335	102	4	of	of	IN
3335	102	5	the	the	DT
3335	102	6	UC	UC	NNP
3335	102	7	system	system	NN
3335	102	8	ARTICLE	article	NN
3335	102	9	TITLE	TITLE	NNP
3335	102	10	|	|	NNP
3335	102	11	AUTHOR	AUTHOR	NNP
3335	102	12	91VISUALIZATIONS	91visualizations	CD
3335	102	13	FOR	for	IN
3335	102	14	DIGITAL	DIGITAL	NNP
3335	102	15	LIBRARIES	library	NNS
3335	102	16	|	|	NNP
3335	102	17	WAN	wan	VBP
3335	102	18	91	91	CD
3335	102	19	logarithmic	logarithmic	JJ
3335	102	20	transformation	transformation	NN
3335	102	21	can	can	MD
3335	102	22	spread	spread	VB
3335	102	23	the	the	DT
3335	102	24	clustered	cluster	VBN
3335	102	25	dots	dot	NNS
3335	102	26	more	more	RBR
3335	102	27	evenly	evenly	RB
3335	102	28	across	across	IN
3335	102	29	the	the	DT
3335	102	30	scatter	scatter	NN
3335	102	31	plot	plot	NN
3335	102	32	.	.	.
3335	103	1	Other	other	JJ
3335	103	2	data	data	NN
3335	103	3	transformations	transformation	NNS
3335	103	4	and	and	CC
3335	103	5	visualizations	visualization	NNS
3335	103	6	may	may	MD
3335	103	7	be	be	VB
3335	103	8	important	important	JJ
3335	103	9	in	in	IN
3335	103	10	some	some	DT
3335	103	11	cases	case	NNS
3335	103	12	as	as	RB
3335	103	13	well	well	RB
3335	103	14	,	,	,
3335	103	15	such	such	JJ
3335	103	16	as	as	IN
3335	103	17	parallel	parallel	JJ
3335	103	18	coordi-	coordi-	NN
3335	103	19	nates	nate	NNS
3335	103	20	for	for	IN
3335	103	21	displaying	display	VBG
3335	103	22	citation	citation	NN
3335	103	23	statistics	statistic	NNS
3335	103	24	for	for	IN
3335	103	25	the	the	DT
3335	103	26	same	same	JJ
3335	103	27	group	group	NN
3335	103	28	of	of	IN
3335	103	29	researchers	researcher	NNS
3335	103	30	at	at	IN
3335	103	31	different	different	JJ
3335	103	32	points	point	NNS
3335	103	33	in	in	IN
3335	103	34	time	time	NN
3335	103	35	.	.	.
3335	104	1	The	the	DT
3335	104	2	scatter	scatter	NN
3335	104	3	plot	plot	NN
3335	104	4	is	be	VBZ
3335	104	5	not	not	RB
3335	104	6	a	a	DT
3335	104	7	new	new	JJ
3335	104	8	visualization	visualization	NN
3335	104	9	technique	technique	NN
3335	104	10	.	.	.
3335	105	1	This	this	DT
3335	105	2	example	example	NN
3335	105	3	,	,	,
3335	105	4	however	however	RB
3335	105	5	,	,	,
3335	105	6	demonstrates	demonstrate	VBZ
3335	105	7	that	that	IN
3335	105	8	by	by	IN
3335	105	9	encoding	encode	VBG
3335	105	10	document	document	NN
3335	105	11	attributes	attribute	NNS
3335	105	12	and	and	CC
3335	105	13	designing	design	VBG
3335	105	14	proper	proper	JJ
3335	105	15	filters	filter	NNS
3335	105	16	,	,	,
3335	105	17	it	-PRON-	PRP
3335	105	18	can	can	MD
3335	105	19	be	be	VB
3335	105	20	used	use	VBN
3335	105	21	in	in	IN
3335	105	22	a	a	DT
3335	105	23	digital	digital	JJ
3335	105	24	library	library	NN
3335	105	25	environment	environment	NN
3335	105	26	effectively	effectively	RB
3335	105	27	and	and	CC
3335	105	28	efficiently	efficiently	RB
3335	105	29	.	.	.
3335	106	1	3D	3D	NNP
3335	106	2	Vase	Vase	NNP
3335	106	3	Museum	Museum	NNP
3335	106	4	The	the	DT
3335	106	5	previous	previous	JJ
3335	106	6	example	example	NN
3335	106	7	,	,	,
3335	106	8	LVis	LVis	NNP
3335	106	9	,	,	,
3335	106	10	already	already	RB
3335	106	11	introduced	introduce	VBD
3335	106	12	the	the	DT
3335	106	13	applications	application	NNS
3335	106	14	of	of	IN
3335	106	15	3D	3d	NN
3335	106	16	representations	representation	NNS
3335	106	17	in	in	IN
3335	106	18	digital	digital	JJ
3335	106	19	libraries	library	NNS
3335	106	20	.	.	.
3335	107	1	The	the	DT
3335	107	2	3D	3d	JJ
3335	107	3	Vase	Vase	NNP
3335	107	4	Museum	Museum	NNP
3335	107	5	developed	develop	VBN
3335	107	6	by	by	IN
3335	107	7	Shiaw	Shiaw	NNP
3335	107	8	et	et	FW
3335	107	9	al	al	NNP
3335	107	10	.	.	.
3335	108	1	at	at	IN
3335	108	2	Tufts	Tufts	NNP
3335	108	3	University	University	NNP
3335	108	4	is	be	VBZ
3335	108	5	another	another	DT
3335	108	6	good	good	JJ
3335	108	7	example	example	NN
3335	108	8	of	of	IN
3335	108	9	3D	3D	NNP
3335	108	10	space	space	NNP
3335	108	11	meta-	meta-	NNP
3335	108	12	phor	phor	NNP
3335	108	13	in	in	IN
3335	108	14	digital	digital	JJ
3335	108	15	libraries	library	NNS
3335	108	16	using	use	VBG
3335	108	17	a	a	DT
3335	108	18	variety	variety	NN
3335	108	19	of	of	IN
3335	108	20	visualization	visualization	NN
3335	108	21	techniques.20	techniques.20	NNP
3335	108	22	In	in	IN
3335	108	23	this	this	DT
3335	108	24	3D	3d	JJ
3335	108	25	Vase	Vase	NNP
3335	108	26	Museum	Museum	NNP
3335	108	27	,	,	,
3335	108	28	the	the	DT
3335	108	29	user	user	NN
3335	108	30	can	can	MD
3335	108	31	navigate	navigate	VB
3335	108	32	seam-	seam-	XX
3335	108	33	lessly	lessly	RB
3335	108	34	from	from	IN
3335	108	35	a	a	DT
3335	108	36	high	high	JJ
3335	108	37	level	level	NN
3335	108	38	scatter	scatter	NN
3335	108	39	-	-	HYPH
3335	108	40	plot	plot	NN
3335	108	41	-	-	HYPH
3335	108	42	like	like	JJ
3335	108	43	plan	plan	NN
3335	108	44	view	view	NN
3335	108	45	to	to	IN
3335	108	46	a	a	DT
3335	108	47	perspective	perspective	NN
3335	108	48	overview	overview	NN
3335	108	49	of	of	IN
3335	108	50	a	a	DT
3335	108	51	subset	subset	NN
3335	108	52	of	of	IN
3335	108	53	the	the	DT
3335	108	54	collection	collection	NN
3335	108	55	,	,	,
3335	108	56	to	to	IN
3335	108	57	a	a	DT
3335	108	58	view	view	NN
3335	108	59	of	of	IN
3335	108	60	an	an	DT
3335	108	61	individual	individual	JJ
3335	108	62	item	item	NN
3335	108	63	,	,	,
3335	108	64	to	to	IN
3335	108	65	retrieval	retrieval	NN
3335	108	66	of	of	IN
3335	108	67	data	datum	NNS
3335	108	68	associated	associate	VBN
3335	108	69	with	with	IN
3335	108	70	that	that	DT
3335	108	71	item	item	NN
3335	108	72	,	,	,
3335	108	73	all	all	RB
3335	108	74	within	within	IN
3335	108	75	the	the	DT
3335	108	76	same	same	JJ
3335	108	77	virtual	virtual	JJ
3335	108	78	room	room	NN
3335	108	79	and	and	CC
3335	108	80	with-	with-	XX
3335	108	81	out	out	RP
3335	108	82	any	any	DT
3335	108	83	mode	mode	NN
3335	108	84	change	change	NN
3335	108	85	or	or	CC
3335	108	86	special	special	JJ
3335	108	87	command	command	NN
3335	108	88	.	.	.
3335	109	1	Unlike	unlike	IN
3335	109	2	the	the	DT
3335	109	3	traditional	traditional	JJ
3335	109	4	digital	digital	JJ
3335	109	5	library	library	NN
3335	109	6	,	,	,
3335	109	7	which	which	WDT
3335	109	8	displays	display	VBZ
3335	109	9	thumbnails	thumbnail	NNS
3335	109	10	and	and	CC
3335	109	11	descriptions	description	NNS
3335	109	12	of	of	IN
3335	109	13	vases	vase	NNS
3335	109	14	in	in	IN
3335	109	15	the	the	DT
3335	109	16	main	main	JJ
3335	109	17	browser	browser	NN
3335	109	18	interface	interface	NN
3335	109	19	,	,	,
3335	109	20	this	this	DT
3335	109	21	museum	museum	NN
3335	109	22	is	be	VBZ
3335	109	23	a	a	DT
3335	109	24	3D	3d	JJ
3335	109	25	virtual	virtual	JJ
3335	109	26	environment	environment	NN
3335	109	27	that	that	WDT
3335	109	28	presents	present	VBZ
3335	109	29	each	each	DT
3335	109	30	vase	vase	NN
3335	109	31	as	as	IN
3335	109	32	a	a	DT
3335	109	33	3D	3d	JJ
3335	109	34	object	object	NN
3335	109	35	and	and	CC
3335	109	36	places	place	VBZ
3335	109	37	it	-PRON-	PRP
3335	109	38	in	in	IN
3335	109	39	a	a	DT
3335	109	40	3D	3d	JJ
3335	109	41	space	space	NN
3335	109	42	of	of	IN
3335	109	43	a	a	DT
3335	109	44	room	room	NN
3335	109	45	within	within	IN
3335	109	46	a	a	DT
3335	109	47	museum	museum	NN
3335	109	48	.	.	.
3335	110	1	Figure	figure	NN
3335	110	2	4	4	CD
3335	110	3	gives	give	VBZ
3335	110	4	a	a	DT
3335	110	5	wide-	wide-	JJ
3335	110	6	angle	angle	JJ
3335	110	7	view	view	NN
3335	110	8	of	of	IN
3335	110	9	this	this	DT
3335	110	10	3D	3d	JJ
3335	110	11	museum	museum	NN
3335	110	12	.	.	.
3335	111	1	In	in	IN
3335	111	2	this	this	DT
3335	111	3	view	view	NN
3335	111	4	,	,	,
3335	111	5	one	one	CD
3335	111	6	wall	wall	NN
3335	111	7	represents	represent	VBZ
3335	111	8	the	the	DT
3335	111	9	timeline	timeline	NNP
3335	111	10	(	(	-LRB-
3335	111	11	year	year	NN
3335	111	12	BCE	BCE	NNP
3335	111	13	)	)	-RRB-
3335	111	14	and	and	CC
3335	111	15	the	the	DT
3335	111	16	adjacent	adjacent	JJ
3335	111	17	wall	wall	NN
3335	111	18	represents	represent	VBZ
3335	111	19	the	the	DT
3335	111	20	types	type	NNS
3335	111	21	of	of	IN
3335	111	22	wares	ware	NNS
3335	111	23	(	(	-LRB-
3335	111	24	e.g.	e.g.	RB
3335	111	25	,	,	,
3335	111	26	red	red	JJ
3335	111	27	figures	figure	NNS
3335	111	28	,	,	,
3335	111	29	black	black	JJ
3335	111	30	figures	figure	NNS
3335	111	31	)	)	-RRB-
3335	111	32	.	.	.
3335	112	1	The	the	DT
3335	112	2	user	user	NN
3335	112	3	can	can	MD
3335	112	4	“	"	``
3335	112	5	walk	walk	VB
3335	112	6	”	"	''
3335	112	7	through	through	IN
3335	112	8	this	this	DT
3335	112	9	virtual	virtual	JJ
3335	112	10	room	room	NN
3335	112	11	and	and	CC
3335	112	12	look	look	VB
3335	112	13	at	at	IN
3335	112	14	the	the	DT
3335	112	15	vases	vase	NNS
3335	112	16	.	.	.
3335	113	1	The	the	DT
3335	113	2	wide	wide	JJ
3335	113	3	-	-	HYPH
3335	113	4	angle	angle	NN
3335	113	5	view	view	NN
3335	113	6	pictured	picture	VBN
3335	113	7	in	in	IN
3335	113	8	figure	figure	NN
3335	113	9	4	4	CD
3335	113	10	will	will	MD
3335	113	11	then	then	RB
3335	113	12	be	be	VB
3335	113	13	tran-	tran-	JJ
3335	113	14	sited	site	VBD
3335	113	15	to	to	IN
3335	113	16	an	an	DT
3335	113	17	eye	eye	NN
3335	113	18	-	-	HYPH
3335	113	19	level	level	NN
3335	113	20	view	view	NN
3335	113	21	so	so	IN
3335	113	22	that	that	IN
3335	113	23	the	the	DT
3335	113	24	user	user	NN
3335	113	25	can	can	MD
3335	113	26	probe	probe	VB
3335	113	27	the	the	DT
3335	113	28	objects	object	NNS
3335	113	29	more	more	RBR
3335	113	30	clearly	clearly	RB
3335	113	31	.	.	.
3335	114	1	When	when	WRB
3335	114	2	the	the	DT
3335	114	3	user	user	NN
3335	114	4	continues	continue	VBZ
3335	114	5	“	"	``
3335	114	6	walking	walk	VBG
3335	114	7	”	"	''
3335	114	8	toward	toward	IN
3335	114	9	an	an	DT
3335	114	10	object	object	NN
3335	114	11	of	of	IN
3335	114	12	interest	interest	NN
3335	114	13	,	,	,
3335	114	14	secondary	secondary	JJ
3335	114	15	information	information	NN
3335	114	16	about	about	IN
3335	114	17	this	this	DT
3335	114	18	vase	vase	NN
3335	114	19	will	will	MD
3335	114	20	appear	appear	VB
3335	114	21	in	in	IN
3335	114	22	the	the	DT
3335	114	23	virtual	virtual	JJ
3335	114	24	scene	scene	NN
3335	114	25	.	.	.
3335	115	1	If	if	IN
3335	115	2	the	the	DT
3335	115	3	user	user	NN
3335	115	4	looks	look	VBZ
3335	115	5	closer	close	RBR
3335	115	6	,	,	,
3335	115	7	the	the	DT
3335	115	8	text	text	NN
3335	115	9	information	information	NN
3335	115	10	becomes	become	VBZ
3335	115	11	clearer	clear	JJR
3335	115	12	.	.	.
3335	116	1	As	as	IN
3335	116	2	the	the	DT
3335	116	3	user	user	NN
3335	116	4	moves	move	VBZ
3335	116	5	farther	farther	RB
3335	116	6	and	and	CC
3335	116	7	farther	farther	RB
3335	116	8	away	away	RB
3335	116	9	,	,	,
3335	116	10	the	the	DT
3335	116	11	information	information	NN
3335	116	12	becomes	become	VBZ
3335	116	13	less	less	JJR
3335	116	14	and	and	CC
3335	116	15	less	less	RBR
3335	116	16	visible	visible	JJ
3335	116	17	until	until	IN
3335	116	18	it	-PRON-	PRP
3335	116	19	eventually	eventually	RB
3335	116	20	disappears	disappear	VBZ
3335	116	21	from	from	IN
3335	116	22	the	the	DT
3335	116	23	scene	scene	NN
3335	116	24	.	.	.
3335	117	1	If	if	IN
3335	117	2	the	the	DT
3335	117	3	user	user	NN
3335	117	4	clicks	click	VBZ
3335	117	5	on	on	IN
3335	117	6	the	the	DT
3335	117	7	vase	vase	NN
3335	117	8	HTML	html	NN
3335	117	9	page	page	NN
3335	117	10	,	,	,
3335	117	11	a	a	DT
3335	117	12	version	version	NN
3335	117	13	of	of	IN
3335	117	14	the	the	DT
3335	117	15	original	original	JJ
3335	117	16	HTML	html	NN
3335	117	17	page	page	NN
3335	117	18	will	will	MD
3335	117	19	be	be	VB
3335	117	20	loaded	load	VBN
3335	117	21	,	,	,
3335	117	22	from	from	IN
3335	117	23	which	which	WDT
3335	117	24	a	a	DT
3335	117	25	3D	3d	JJ
3335	117	26	model	model	NN
3335	117	27	of	of	IN
3335	117	28	the	the	DT
3335	117	29	vase	vase	NN
3335	117	30	can	can	MD
3335	117	31	be	be	VB
3335	117	32	loaded	load	VBN
3335	117	33	.	.	.
3335	118	1	The	the	DT
3335	118	2	user	user	NN
3335	118	3	can	can	MD
3335	118	4	then	then	RB
3335	118	5	rotate	rotate	VB
3335	118	6	this	this	DT
3335	118	7	3D	3d	JJ
3335	118	8	model	model	NN
3335	118	9	on	on	IN
3335	118	10	the	the	DT
3335	118	11	screen	screen	NN
3335	118	12	using	use	VBG
3335	118	13	the	the	DT
3335	118	14	mouse	mouse	NN
3335	118	15	to	to	TO
3335	118	16	see	see	VB
3335	118	17	all	all	PDT
3335	118	18	the	the	DT
3335	118	19	aspects	aspect	NNS
3335	118	20	of	of	IN
3335	118	21	the	the	DT
3335	118	22	vase	vase	NN
3335	118	23	.	.	.
3335	119	1	The	the	DT
3335	119	2	3D	3d	JJ
3335	119	3	Vase	Vase	NNP
3335	119	4	Museum	Museum	NNP
3335	119	5	is	be	VBZ
3335	119	6	maintained	maintain	VBN
3335	119	7	in	in	IN
3335	119	8	the	the	DT
3335	119	9	background	background	NN
3335	119	10	all	all	DT
3335	119	11	times	time	NNS
3335	119	12	.	.	.
3335	120	1	The	the	DT
3335	120	2	user	user	NN
3335	120	3	can	can	MD
3335	120	4	also	also	RB
3335	120	5	navigate	navigate	VB
3335	120	6	the	the	DT
3335	120	7	room	room	NN
3335	120	8	in	in	IN
3335	120	9	a	a	DT
3335	120	10	perspective	perspective	JJ
3335	120	11	view	view	NN
3335	120	12	by	by	IN
3335	120	13	switching	switch	VBG
3335	120	14	the	the	DT
3335	120	15	view	view	NN
3335	120	16	port	port	NN
3335	120	17	upward	upward	RB
3335	120	18	toward	toward	IN
3335	120	19	the	the	DT
3335	120	20	ceiling	ceiling	NN
3335	120	21	(	(	-LRB-
3335	120	22	watching	watch	VBG
3335	120	23	from	from	IN
3335	120	24	upside	upside	RB
3335	120	25	down	down	RB
3335	120	26	)	)	-RRB-
3335	120	27	.	.	.
3335	121	1	The	the	DT
3335	121	2	user	user	NN
3335	121	3	can	can	MD
3335	121	4	then	then	RB
3335	121	5	switch	switch	VB
3335	121	6	the	the	DT
3335	121	7	views	view	NNS
3335	121	8	between	between	IN
3335	121	9	a	a	DT
3335	121	10	high	high	JJ
3335	121	11	-	-	HYPH
3335	121	12	level	level	NN
3335	121	13	scatter	scatter	NN
3335	121	14	plot	plot	NN
3335	121	15	and	and	CC
3335	121	16	a	a	DT
3335	121	17	3D	3d	JJ
3335	121	18	perspective	perspective	JJ
3335	121	19	view	view	NN
3335	121	20	.	.	.
3335	122	1	Similarly	similarly	RB
3335	122	2	,	,	,
3335	122	3	in	in	IN
3335	122	4	this	this	DT
3335	122	5	application	application	NN
3335	122	6	,	,	,
3335	122	7	the	the	DT
3335	122	8	X-	X-	NNP
3335	122	9	and	and	CC
3335	122	10	Y-	Y-	NNP
3335	122	11	axes	axis	NNS
3335	122	12	are	be	VBP
3335	122	13	mapped	map	VBN
3335	122	14	to	to	IN
3335	122	15	two	two	CD
3335	122	16	attributes	attribute	NNS
3335	122	17	of	of	IN
3335	122	18	the	the	DT
3335	122	19	vases	vases	NNPS
3335	122	20	:	:	:
3335	122	21	year	year	NN
3335	122	22	and	and	CC
3335	122	23	ware	ware	NN
3335	122	24	.	.	.
3335	123	1	With	with	IN
3335	123	2	this	this	DT
3335	123	3	seamless	seamless	JJ
3335	123	4	blend	blend	NN
3335	123	5	from	from	IN
3335	123	6	a	a	DT
3335	123	7	high	high	JJ
3335	123	8	-	-	HYPH
3335	123	9	level	level	NN
3335	123	10	data	datum	NNS
3335	123	11	plot	plot	NN
3335	123	12	to	to	IN
3335	123	13	3D	3d	VB
3335	123	14	objects	object	NNS
3335	123	15	,	,	,
3335	123	16	the	the	DT
3335	123	17	user	user	NN
3335	123	18	can	can	MD
3335	123	19	navigate	navigate	VB
3335	123	20	without	without	IN
3335	123	21	los-	los-	WRB
3335	123	22	ing	e	VBG
3335	123	23	the	the	DT
3335	123	24	point	point	NN
3335	123	25	of	of	IN
3335	123	26	view	view	NN
3335	123	27	or	or	CC
3335	123	28	context	context	NN
3335	123	29	by	by	IN
3335	123	30	just	just	RB
3335	123	31	moving	move	VBG
3335	123	32	within	within	IN
3335	123	33	the	the	DT
3335	123	34	virtual	virtual	JJ
3335	123	35	environment	environment	NN
3335	123	36	.	.	.
3335	124	1	According	accord	VBG
3335	124	2	to	to	IN
3335	124	3	Shiaw	Shiaw	NNP
3335	124	4	et	et	FW
3335	124	5	al	al	NNP
3335	124	6	.	.	NNP
3335	124	7	,	,	,
3335	124	8	a	a	DT
3335	124	9	usability	usability	NN
3335	124	10	test	test	NN
3335	124	11	has	have	VBZ
3335	124	12	been	be	VBN
3335	124	13	ad-	ad-	VBN
3335	124	14	ministered	minister	VBN
3335	124	15	,	,	,
3335	124	16	in	in	IN
3335	124	17	which	which	WDT
3335	124	18	tasks	task	NNS
3335	124	19	based	base	VBN
3335	124	20	on	on	IN
3335	124	21	archaeology	archaeology	NN
3335	124	22	courses	course	NNS
3335	124	23	were	be	VBD
3335	124	24	designed	design	VBN
3335	124	25	and	and	CC
3335	124	26	subjects	subject	NNS
3335	124	27	were	be	VBD
3335	124	28	asked	ask	VBN
3335	124	29	to	to	TO
3335	124	30	perform	perform	VB
3335	124	31	these	these	DT
3335	124	32	tasks	task	NNS
3335	124	33	in	in	IN
3335	124	34	the	the	DT
3335	124	35	original	original	JJ
3335	124	36	traditional	traditional	JJ
3335	124	37	digital	digital	JJ
3335	124	38	library	library	NN
3335	124	39	and	and	CC
3335	124	40	this	this	DT
3335	124	41	3D	3d	NN
3335	124	42	museum.21	museum.21	NNP
3335	124	43	The	the	DT
3335	124	44	results	result	NNS
3335	124	45	showed	show	VBD
3335	124	46	subjects	subject	NNS
3335	124	47	who	who	WP
3335	124	48	used	use	VBD
3335	124	49	the	the	DT
3335	124	50	3D	3d	JJ
3335	124	51	Vase	Vase	NNP
3335	124	52	Museum	Museum	NNP
3335	124	53	performed	perform	VBD
3335	124	54	the	the	DT
3335	124	55	tasks	task	NNS
3335	124	56	33	33	CD
3335	124	57	percent	percent	NN
3335	124	58	better	well	RBR
3335	124	59	and	and	CC
3335	124	60	did	do	VBD
3335	124	61	so	so	RB
3335	124	62	nearly	nearly	RB
3335	124	63	three	three	CD
3335	124	64	times	time	NNS
3335	124	65	faster	fast	RBR
3335	124	66	.	.	.
3335	125	1	■	■	NFP
3335	125	2	Collaborative	collaborative	JJ
3335	125	3	Visual	visual	JJ
3335	125	4	Interfaces	interface	NNS
3335	125	5	to	to	IN
3335	125	6	digital	digital	JJ
3335	125	7	libraries	library	NNS
3335	125	8	Collaborative	Collaborative	NNP
3335	125	9	Visual	Visual	NNP
3335	125	10	Interfaces	Interfaces	NNPS
3335	125	11	is	be	VBZ
3335	125	12	an	an	DT
3335	125	13	ongoing	ongoing	JJ
3335	125	14	project	project	NN
3335	125	15	led	lead	VBN
3335	125	16	by	by	IN
3335	125	17	Borner	Borner	NNP
3335	125	18	at	at	IN
3335	125	19	Indiana	Indiana	NNP
3335	125	20	University	University	NNP
3335	125	21	(	(	-LRB-
3335	125	22	IU	IU	NNP
3335	125	23	)	)	-RRB-
3335	125	24	.	.	.
3335	126	1	Borner	Borner	NNP
3335	126	2	et	et	NNP
3335	126	3	al	al	NNP
3335	126	4	.	.	.
3335	127	1	(	(	-LRB-
3335	127	2	2002	2002	CD
3335	127	3	)	)	-RRB-
3335	127	4	proposed	propose	VBD
3335	127	5	the	the	DT
3335	127	6	development	development	NN
3335	127	7	of	of	IN
3335	127	8	a	a	DT
3335	127	9	shared	shared	JJ
3335	127	10	3D	3d	JJ
3335	127	11	document	document	NN
3335	127	12	space	space	NN
3335	127	13	for	for	IN
3335	127	14	a	a	DT
3335	127	15	scholarly	scholarly	JJ
3335	127	16	community	community	NN
3335	127	17	—	—	:
3335	127	18	namely	namely	RB
3335	127	19	faculty	faculty	NN
3335	127	20	,	,	,
3335	127	21	staff	staff	NN
3335	127	22	,	,	,
3335	127	23	and	and	CC
3335	127	24	students	student	NNS
3335	127	25	at	at	IN
3335	127	26	IU	IU	NNP
3335	127	27	’s	’s	NNP
3335	127	28	School	School	NNP
3335	127	29	of	of	IN
3335	127	30	Library	Library	NNP
3335	127	31	and	and	CC
3335	127	32	Information	Information	NNP
3335	127	33	Science.22	Science.22	.
3335	127	34	The	the	DT
3335	127	35	space	space	NN
3335	127	36	will	will	MD
3335	127	37	provide	provide	VB
3335	127	38	access	access	NN
3335	127	39	to	to	IN
3335	127	40	a	a	DT
3335	127	41	collection	collection	NN
3335	127	42	of	of	IN
3335	127	43	various	various	JJ
3335	127	44	online	online	JJ
3335	127	45	documents	document	NNS
3335	127	46	including	include	VBG
3335	127	47	text	text	NN
3335	127	48	,	,	,
3335	127	49	images	image	NNS
3335	127	50	,	,	,
3335	127	51	video	video	NN
3335	127	52	,	,	,
3335	127	53	and	and	CC
3335	127	54	software	software	NN
3335	127	55	demonstrations	demonstration	NNS
3335	127	56	.	.	.
3335	128	1	A	a	DT
3335	128	2	Semantic	Semantic	NNP
3335	128	3	Treemap	Treemap	NNP
3335	128	4	algorithm	algorithm	NN
3335	128	5	has	have	VBZ
3335	128	6	been	be	VBN
3335	128	7	developed	develop	VBN
3335	128	8	to	to	TO
3335	128	9	layout	layout	VB
3335	128	10	documents	document	NNS
3335	128	11	in	in	IN
3335	128	12	a	a	DT
3335	128	13	3D	3d	JJ
3335	128	14	space.23	space.23	NNP
3335	128	15	Semantic	Semantic	NNP
3335	128	16	Treemaps	Treemaps	NNPS
3335	128	17	utilize	utilize	VBP
3335	128	18	the	the	DT
3335	128	19	original	original	JJ
3335	128	20	Treemap	Treemap	NNP
3335	128	21	approach	approach	NN
3335	128	22	to	to	TO
3335	128	23	determine	determine	VB
3335	128	24	the	the	DT
3335	128	25	size	size	NN
3335	128	26	(	(	-LRB-
3335	128	27	dependent	dependent	JJ
3335	128	28	on	on	IN
3335	128	29	the	the	DT
3335	128	30	number	number	NN
3335	128	31	of	of	IN
3335	128	32	documents	document	NNS
3335	128	33	)	)	-RRB-
3335	128	34	and	and	CC
3335	128	35	layout	layout	VB
3335	128	36	Figure	figure	NN
3335	128	37	3	3	CD
3335	128	38	.	.	.
3335	129	1	ActiveGraph	ActiveGraph	NNP
3335	129	2	scatter	scatter	NN
3335	129	3	plot	plot	NN
3335	129	4	of	of	IN
3335	129	5	citation	citation	NN
3335	129	6	data	datum	NNS
3335	129	7	for	for	IN
3335	129	8	papers	paper	NNS
3335	129	9	authored	author	VBN
3335	129	10	by	by	IN
3335	129	11	LANL	LANL	NNP
3335	129	12	postdoctoral	postdoctoral	JJ
3335	129	13	researchers	researcher	NNS
3335	129	14	92	92	CD
3335	129	15	INFORMATION	information	NN
3335	129	16	TECHNOLOGY	technology	NN
3335	129	17	AND	and	CC
3335	129	18	LIBRARIES	LIBRARIES	NNP
3335	129	19	|	|	NNP
3335	129	20	JUNE	JUNE	NNP
3335	129	21	2006	2006	CD
3335	129	22	of	of	IN
3335	129	23	document	document	NN
3335	129	24	clusters	cluster	NNS
3335	129	25	.	.	.
3335	130	1	Subsequently	subsequently	RB
3335	130	2	,	,	,
3335	130	3	an	an	DT
3335	130	4	algorithm	algorithm	NN
3335	130	5	(	(	-LRB-
3335	130	6	force	force	NN
3335	130	7	directed	direct	VBN
3335	130	8	placement	placement	NN
3335	130	9	)	)	-RRB-
3335	130	10	was	be	VBD
3335	130	11	applied	apply	VBN
3335	130	12	to	to	IN
3335	130	13	the	the	DT
3335	130	14	documents	document	NNS
3335	130	15	in	in	IN
3335	130	16	each	each	DT
3335	130	17	cluster	cluster	NN
3335	130	18	to	to	TO
3335	130	19	place	place	VB
3335	130	20	documents	document	NNS
3335	130	21	spatially	spatially	RB
3335	130	22	,	,	,
3335	130	23	based	base	VBN
3335	130	24	on	on	IN
3335	130	25	their	-PRON-	PRP$
3335	130	26	semantic	semantic	JJ
3335	130	27	similarity	similarity	NN
3335	130	28	,	,	,
3335	130	29	which	which	WDT
3335	130	30	was	be	VBD
3335	130	31	encoded	encode	VBN
3335	130	32	by	by	IN
3335	130	33	the	the	DT
3335	130	34	physical	physical	JJ
3335	130	35	proximity	proximity	NN
3335	130	36	between	between	IN
3335	130	37	two	two	CD
3335	130	38	dots	dot	NNS
3335	130	39	.	.	.
3335	131	1	An	an	DT
3335	131	2	example	example	NN
3335	131	3	of	of	IN
3335	131	4	the	the	DT
3335	131	5	Semantic	Semantic	NNP
3335	131	6	Treemaps	Treemaps	NNPS
3335	131	7	is	be	VBZ
3335	131	8	shown	show	VBN
3335	131	9	in	in	IN
3335	131	10	figure	figure	NN
3335	131	11	5.1	5.1	CD
3335	131	12	.	.	.
3335	132	1	A	a	DT
3335	132	2	3D	3d	JJ
3335	132	3	space	space	NN
3335	132	4	metaphor	metaphor	NN
3335	132	5	was	be	VBD
3335	132	6	then	then	RB
3335	132	7	used	use	VBN
3335	132	8	to	to	TO
3335	132	9	display	display	VB
3335	132	10	these	these	DT
3335	132	11	documents	document	NNS
3335	132	12	on	on	IN
3335	132	13	the	the	DT
3335	132	14	desktop	desktop	NN
3335	132	15	interface	interface	NN
3335	132	16	,	,	,
3335	132	17	as	as	IN
3335	132	18	shown	show	VBN
3335	132	19	in	in	IN
3335	132	20	figure	figure	NN
3335	132	21	5.2	5.2	CD
3335	132	22	.	.	.
3335	133	1	In	in	IN
3335	133	2	this	this	DT
3335	133	3	3D	3d	JJ
3335	133	4	space	space	NN
3335	133	5	,	,	,
3335	133	6	each	each	DT
3335	133	7	document	document	NN
3335	133	8	is	be	VBZ
3335	133	9	represented	represent	VBN
3335	133	10	by	by	IN
3335	133	11	a	a	DT
3335	133	12	square	square	JJ
3335	133	13	panel	panel	NN
3335	133	14	textured	texture	VBN
3335	133	15	by	by	IN
3335	133	16	the	the	DT
3335	133	17	corresponding	correspond	VBG
3335	133	18	Web	web	NN
3335	133	19	page	page	NN
3335	133	20	’s	’s	POS
3335	133	21	thumbnail	thumbnail	JJ
3335	133	22	image	image	NN
3335	133	23	and	and	CC
3335	133	24	augmented	augment	VBN
3335	133	25	by	by	IN
3335	133	26	a	a	DT
3335	133	27	short	short	JJ
3335	133	28	description	description	NN
3335	133	29	such	such	JJ
3335	133	30	as	as	IN
3335	133	31	the	the	DT
3335	133	32	Web	web	NN
3335	133	33	page	page	NN
3335	133	34	title	title	NN
3335	133	35	that	that	WDT
3335	133	36	appears	appear	VBZ
3335	133	37	when	when	WRB
3335	133	38	the	the	DT
3335	133	39	user	user	NN
3335	133	40	moves	move	VBZ
3335	133	41	the	the	DT
3335	133	42	mouse	mouse	NN
3335	133	43	over	over	IN
3335	133	44	the	the	DT
3335	133	45	panel	panel	NN
3335	133	46	.	.	.
3335	134	1	As	as	IN
3335	134	2	in	in	IN
3335	134	3	other	other	JJ
3335	134	4	3D	3d	NN
3335	134	5	envi-	envi-	VBZ
3335	134	6	ronments	ronment	NNS
3335	134	7	,	,	,
3335	134	8	users	user	NNS
3335	134	9	can	can	MD
3335	134	10	“	"	``
3335	134	11	walk	walk	VB
3335	134	12	”	"	''
3335	134	13	through	through	IN
3335	134	14	this	this	DT
3335	134	15	space	space	NN
3335	134	16	to	to	TO
3335	134	17	probe	probe	VB
3335	134	18	documents	document	NNS
3335	134	19	of	of	IN
3335	134	20	interest	interest	NN
3335	134	21	.	.	.
3335	135	1	Upon	upon	IN
3335	135	2	clicking	click	VBG
3335	135	3	the	the	DT
3335	135	4	panel	panel	NN
3335	135	5	,	,	,
3335	135	6	the	the	DT
3335	135	7	cor-	cor-	NN
3335	135	8	responding	respond	VBG
3335	135	9	Web	web	NN
3335	135	10	page	page	NN
3335	135	11	is	be	VBZ
3335	135	12	displayed	display	VBN
3335	135	13	in	in	IN
3335	135	14	the	the	DT
3335	135	15	Web	web	NN
3335	135	16	-	-	HYPH
3335	135	17	browser	browser	NN
3335	135	18	interface	interface	NN
3335	135	19	.	.	.
3335	136	1	Users	user	NNS
3335	136	2	can	can	MD
3335	136	3	collaboratively	collaboratively	RB
3335	136	4	examine	examine	VB
3335	136	5	,	,	,
3335	136	6	discuss	discuss	VB
3335	136	7	,	,	,
3335	136	8	and	and	CC
3335	136	9	modify	modify	VB
3335	136	10	(	(	-LRB-
3335	136	11	add	add	VB
3335	136	12	and	and	CC
3335	136	13	annotate	annotate	VB
3335	136	14	)	)	-RRB-
3335	136	15	documents	document	NNS
3335	136	16	,	,	,
3335	136	17	thereby	thereby	RB
3335	136	18	converting	convert	VBG
3335	136	19	this	this	DT
3335	136	20	document	document	NN
3335	136	21	space	space	NN
3335	136	22	into	into	IN
3335	136	23	an	an	DT
3335	136	24	ever	ever	RB
3335	136	25	-	-	HYPH
3335	136	26	evolving	evolve	VBG
3335	136	27	repository	repository	NN
3335	136	28	of	of	IN
3335	136	29	the	the	DT
3335	136	30	user	user	NN
3335	136	31	community	community	NN
3335	136	32	’s	’s	POS
3335	136	33	collective	collective	JJ
3335	136	34	knowledge	knowledge	NN
3335	136	35	that	that	WDT
3335	136	36	members	member	NNS
3335	136	37	can	can	MD
3335	136	38	access	access	VB
3335	136	39	,	,	,
3335	136	40	learn	learn	VB
3335	136	41	from	from	IN
3335	136	42	,	,	,
3335	136	43	contribute	contribute	VB
3335	136	44	to	to	IN
3335	136	45	,	,	,
3335	136	46	and	and	CC
3335	136	47	build	build	VB
3335	136	48	upon	upon	IN
3335	136	49	.	.	.
3335	137	1	Certain	certain	JJ
3335	137	2	usability	usability	NN
3335	137	3	studies	study	NNS
3335	137	4	have	have	VBP
3335	137	5	been	be	VBN
3335	137	6	performed	perform	VBN
3335	137	7	to	to	TO
3335	137	8	determine	determine	VB
3335	137	9	the	the	DT
3335	137	10	influence	influence	NN
3335	137	11	of	of	IN
3335	137	12	panel	panel	NN
3335	137	13	size	size	NN
3335	137	14	and	and	CC
3335	137	15	panel	panel	NN
3335	137	16	density	density	NN
3335	137	17	on	on	IN
3335	137	18	retrieval	retrieval	NN
3335	137	19	performance	performance	NN
3335	137	20	.	.	.
3335	138	1	Results	result	NNS
3335	138	2	showed	show	VBD
3335	138	3	that	that	IN
3335	138	4	subjects	subject	NNS
3335	138	5	were	be	VBD
3335	138	6	slightly	slightly	RB
3335	138	7	faster	fast	JJR
3335	138	8	and	and	CC
3335	138	9	more	more	RBR
3335	138	10	accurate	accurate	JJ
3335	138	11	if	if	IN
3335	138	12	Web	web	NN
3335	138	13	-	-	HYPH
3335	138	14	page	page	NN
3335	138	15	panels	panel	NNS
3335	138	16	are	be	VBP
3335	138	17	larger	large	JJR
3335	138	18	and	and	CC
3335	138	19	denser	denser	NN
3335	138	20	.	.	.
3335	139	1	■	■	NFP
3335	139	2	AquaBrowser	AquaBrowser	NNP
3335	139	3	AquaBrowser	AquaBrowser	NNP
3335	139	4	is	be	VBZ
3335	139	5	a	a	DT
3335	139	6	fuzzy	fuzzy	JJ
3335	139	7	visualization	visualization	NN
3335	139	8	tool	tool	NN
3335	139	9	that	that	WDT
3335	139	10	shows	show	VBZ
3335	139	11	the	the	DT
3335	139	12	high	high	JJ
3335	139	13	-	-	HYPH
3335	139	14	level	level	NN
3335	139	15	description	description	NN
3335	139	16	of	of	IN
3335	139	17	a	a	DT
3335	139	18	conceptual	conceptual	JJ
3335	139	19	space	space	NN
3335	139	20	,	,	,
3335	139	21	hiding	hide	VBG
3335	139	22	irrelevant	irrelevant	JJ
3335	139	23	information	information	NN
3335	139	24	and	and	CC
3335	139	25	displaying	display	VBG
3335	139	26	information	information	NN
3335	139	27	ele-	ele-	VBZ
3335	139	28	ments	ment	NNS
3335	139	29	in	in	IN
3335	139	30	context.24	context.24	NNP
3335	139	31	It	-PRON-	PRP
3335	139	32	is	be	VBZ
3335	139	33	a	a	DT
3335	139	34	generic	generic	JJ
3335	139	35	Java	Java	NNP
3335	139	36	applet	applet	NN
3335	139	37	that	that	WDT
3335	139	38	can	can	MD
3335	139	39	be	be	VB
3335	139	40	embedded	embed	VBN
3335	139	41	into	into	IN
3335	139	42	any	any	DT
3335	139	43	Web	web	NN
3335	139	44	page	page	NN
3335	139	45	.	.	.
3335	140	1	Medialab	Medialab	NNP
3335	140	2	,	,	,
3335	140	3	the	the	DT
3335	140	4	developer	developer	NN
3335	140	5	of	of	IN
3335	140	6	AquaBrowser	AquaBrowser	NNP
3335	140	7	,	,	,
3335	140	8	claims	claim	VBZ
3335	140	9	that	that	IN
3335	140	10	users	user	NNS
3335	140	11	of	of	IN
3335	140	12	AquaBrowser	AquaBrowser	NNP
3335	140	13	can	can	MD
3335	140	14	browse	browse	VB
3335	140	15	through	through	IN
3335	140	16	a	a	DT
3335	140	17	dynam-	dynam-	NN
3335	140	18	ic	ic	NNP
3335	140	19	conceptual	conceptual	JJ
3335	140	20	space	space	NN
3335	140	21	that	that	WDT
3335	140	22	is	be	VBZ
3335	140	23	continually	continually	RB
3335	140	24	reshaped	reshape	VBN
3335	140	25	to	to	TO
3335	140	26	reflect	reflect	VB
3335	140	27	their	-PRON-	PRP$
3335	140	28	interests	interest	NNS
3335	140	29	.	.	.
3335	141	1	Animations	animation	NNS
3335	141	2	make	make	VBP
3335	141	3	tran-	tran-	NN
3335	141	4	sitions	sition	NNS
3335	141	5	from	from	IN
3335	141	6	one	one	CD
3335	141	7	state	state	NN
3335	141	8	to	to	IN
3335	141	9	another	another	DT
3335	141	10	appear	appear	VB
3335	141	11	more	more	RBR
3335	141	12	fluid	fluid	JJ
3335	141	13	,	,	,
3335	141	14	showing	show	VBG
3335	141	15	users	user	NNS
3335	141	16	why	why	WRB
3335	141	17	and	and	CC
3335	141	18	how	how	WRB
3335	141	19	the	the	DT
3335	141	20	information	information	NN
3335	141	21	is	be	VBZ
3335	141	22	rearranged	rearranged	JJ
3335	141	23	.	.	.
3335	142	1	Medialab	Medialab	NNP
3335	142	2	uses	use	VBZ
3335	142	3	the	the	DT
3335	142	4	term	term	NN
3335	142	5	“	"	``
3335	142	6	word	word	NN
3335	142	7	cloud	cloud	NN
3335	142	8	”	"	''
3335	142	9	as	as	IN
3335	142	10	the	the	DT
3335	142	11	visual	visual	JJ
3335	142	12	metaphor	metaphor	NN
3335	142	13	of	of	IN
3335	142	14	the	the	DT
3335	142	15	AquaBrowser	AquaBrowser	NNP
3335	142	16	interface	interface	NN
3335	142	17	.	.	.
3335	143	1	But	but	CC
3335	143	2	in	in	IN
3335	143	3	fact	fact	NN
3335	143	4	,	,	,
3335	143	5	the	the	DT
3335	143	6	primary	primary	JJ
3335	143	7	visual	visual	JJ
3335	143	8	representation	representation	NN
3335	143	9	is	be	VBZ
3335	143	10	a	a	DT
3335	143	11	network	network	NN
3335	143	12	of	of	IN
3335	143	13	linked	link	VBN
3335	143	14	words	word	NNS
3335	143	15	that	that	WDT
3335	143	16	are	be	VBP
3335	143	17	distributed	distribute	VBN
3335	143	18	in	in	IN
3335	143	19	the	the	DT
3335	143	20	conceptual	conceptual	JJ
3335	143	21	space	space	NN
3335	143	22	.	.	.
3335	144	1	The	the	DT
3335	144	2	search	search	NN
3335	144	3	term	term	NN
3335	144	4	that	that	WDT
3335	144	5	the	the	DT
3335	144	6	user	user	NN
3335	144	7	assigns	assign	NNS
3335	144	8	will	will	MD
3335	144	9	display	display	VB
3335	144	10	at	at	IN
3335	144	11	the	the	DT
3335	144	12	center	center	NN
3335	144	13	of	of	IN
3335	144	14	this	this	DT
3335	144	15	network	network	NN
3335	144	16	.	.	.
3335	145	1	The	the	DT
3335	145	2	physical	physical	JJ
3335	145	3	distance	distance	NN
3335	145	4	between	between	IN
3335	145	5	another	another	DT
3335	145	6	term	term	NN
3335	145	7	node	node	JJ
3335	145	8	and	and	CC
3335	145	9	this	this	DT
3335	145	10	term	term	NN
3335	145	11	encodes	encode	VBZ
3335	145	12	the	the	DT
3335	145	13	relevancy	relevancy	NN
3335	145	14	between	between	IN
3335	145	15	these	these	DT
3335	145	16	terms	term	NNS
3335	145	17	.	.	.
3335	146	1	The	the	DT
3335	146	2	larger	large	JJR
3335	146	3	and	and	CC
3335	146	4	closer	close	RBR
3335	146	5	the	the	DT
3335	146	6	word	word	NN
3335	146	7	is	be	VBZ
3335	146	8	to	to	IN
3335	146	9	the	the	DT
3335	146	10	center	center	NN
3335	146	11	of	of	IN
3335	146	12	the	the	DT
3335	146	13	screen	screen	NN
3335	146	14	,	,	,
3335	146	15	the	the	DT
3335	146	16	greater	great	JJR
3335	146	17	its	-PRON-	PRP$
3335	146	18	relevance	relevance	NN
3335	146	19	to	to	IN
3335	146	20	the	the	DT
3335	146	21	search	search	NN
3335	146	22	term	term	NN
3335	146	23	.	.	.
3335	147	1	In	in	IN
3335	147	2	contrast	contrast	NN
3335	147	3	,	,	,
3335	147	4	the	the	DT
3335	147	5	smaller	small	JJR
3335	147	6	and	and	CC
3335	147	7	more	more	RBR
3335	147	8	peripherally	peripherally	RB
3335	147	9	positioned	position	VBN
3335	147	10	,	,	,
3335	147	11	the	the	DT
3335	147	12	less	less	RBR
3335	147	13	relevant	relevant	JJ
3335	147	14	it	-PRON-	PRP
3335	147	15	is	be	VBZ
3335	147	16	.	.	.
3335	148	1	Each	each	DT
3335	148	2	of	of	IN
3335	148	3	the	the	DT
3335	148	4	user	user	NN
3335	148	5	’s	’s	POS
3335	148	6	actions	action	NNS
3335	148	7	will	will	MD
3335	148	8	change	change	VB
3335	148	9	and	and	CC
3335	148	10	rearrange	rearrange	VB
3335	148	11	the	the	DT
3335	148	12	distribution	distribution	NN
3335	148	13	and	and	CC
3335	148	14	importance	importance	NN
3335	148	15	of	of	IN
3335	148	16	the	the	DT
3335	148	17	words	word	NNS
3335	148	18	,	,	,
3335	148	19	putting	put	VBG
3335	148	20	those	those	DT
3335	148	21	of	of	IN
3335	148	22	greater	great	JJR
3335	148	23	interest	interest	NN
3335	148	24	closer	close	JJR
3335	148	25	to	to	IN
3335	148	26	the	the	DT
3335	148	27	user	user	NN
3335	148	28	and	and	CC
3335	148	29	those	those	DT
3335	148	30	of	of	IN
3335	148	31	less	less	JJR
3335	148	32	interest	interest	NN
3335	148	33	nearer	nearer	RB
3335	148	34	to	to	IN
3335	148	35	the	the	DT
3335	148	36	edge	edge	NN
3335	148	37	of	of	IN
3335	148	38	the	the	DT
3335	148	39	screen	screen	NN
3335	148	40	.	.	.
3335	149	1	It	-PRON-	PRP
3335	149	2	also	also	RB
3335	149	3	uses	use	VBZ
3335	149	4	colors	color	NNS
3335	149	5	to	to	TO
3335	149	6	encode	encode	VB
3335	149	7	attributes	attribute	NNS
3335	149	8	of	of	IN
3335	149	9	terms	term	NNS
3335	149	10	,	,	,
3335	149	11	such	such	JJ
3335	149	12	as	as	IN
3335	149	13	spelling	spelling	NN
3335	149	14	variations	variation	NNS
3335	149	15	,	,	,
3335	149	16	visited	visit	VBD
3335	149	17	words	word	NNS
3335	149	18	,	,	,
3335	149	19	and	and	CC
3335	149	20	translations	translation	NNS
3335	149	21	.	.	.
3335	150	1	Figure	figure	NN
3335	150	2	6	6	CD
3335	150	3	shows	show	VBZ
3335	150	4	an	an	DT
3335	150	5	example	example	NN
3335	150	6	of	of	IN
3335	150	7	a	a	DT
3335	150	8	search	search	NN
3335	150	9	display	display	NN
3335	150	10	.	.	.
3335	151	1	This	this	DT
3335	151	2	tool	tool	NN
3335	151	3	has	have	VBZ
3335	151	4	been	be	VBN
3335	151	5	used	use	VBN
3335	151	6	by	by	IN
3335	151	7	a	a	DT
3335	151	8	number	number	NN
3335	151	9	of	of	IN
3335	151	10	libraries	library	NNS
3335	151	11	to	to	TO
3335	151	12	enhance	enhance	VB
3335	151	13	their	-PRON-	PRP$
3335	151	14	online	online	JJ
3335	151	15	catalog	catalog	NN
3335	151	16	search	search	NN
3335	151	17	interfaces	interface	NNS
3335	151	18	.	.	.
3335	152	1	It	-PRON-	PRP
3335	152	2	could	could	MD
3335	152	3	be	be	VB
3335	152	4	a	a	DT
3335	152	5	very	very	RB
3335	152	6	useful	useful	JJ
3335	152	7	search	search	NN
3335	152	8	aid	aid	NN
3335	152	9	in	in	IN
3335	152	10	digital	digital	JJ
3335	152	11	libraries	library	NNS
3335	152	12	as	as	RB
3335	152	13	well	well	RB
3335	152	14	.	.	.
3335	153	1	■	■	NFP
3335	153	2	Summary	Summary	NNP
3335	153	3	and	and	CC
3335	153	4	trends	trend	VBZ
3335	153	5	The	the	DT
3335	153	6	above	above	JJ
3335	153	7	applications	application	NNS
3335	153	8	are	be	VBP
3335	153	9	just	just	RB
3335	153	10	a	a	DT
3335	153	11	few	few	JJ
3335	153	12	examples	example	NNS
3335	153	13	of	of	IN
3335	153	14	infor-	infor-	JJ
3335	153	15	mation	mation	NN
3335	153	16	visualization	visualization	NN
3335	153	17	in	in	IN
3335	153	18	a	a	DT
3335	153	19	digital	digital	JJ
3335	153	20	-	-	HYPH
3335	153	21	library	library	NN
3335	153	22	environment	environment	NN
3335	153	23	.	.	.
3335	154	1	Many	many	JJ
3335	154	2	other	other	JJ
3335	154	3	metaphors	metaphor	NNS
3335	154	4	and	and	CC
3335	154	5	techniques	technique	NNS
3335	154	6	,	,	,
3335	154	7	such	such	JJ
3335	154	8	as	as	IN
3335	154	9	per-	per-	JJ
3335	154	10	spective	spective	JJ
3335	154	11	wall	wall	NN
3335	154	12	,	,	,
3335	154	13	cone	cone	NN
3335	154	14	tree	tree	NN
3335	154	15	,	,	,
3335	154	16	document	document	NN
3335	154	17	lens	lens	NN
3335	154	18	,	,	,
3335	154	19	and	and	CC
3335	154	20	hyperbolic	hyperbolic	JJ
3335	154	21	browser	browser	NN
3335	154	22	,	,	,
3335	154	23	have	have	VBP
3335	154	24	been	be	VBN
3335	154	25	used	use	VBN
3335	154	26	or	or	CC
3335	154	27	can	can	MD
3335	154	28	potentially	potentially	RB
3335	154	29	be	be	VB
3335	154	30	used	use	VBN
3335	154	31	to	to	TO
3335	154	32	facilitate	facilitate	VB
3335	154	33	searching	search	VBG
3335	154	34	,	,	,
3335	154	35	browsing	browsing	NN
3335	154	36	,	,	,
3335	154	37	and	and	CC
3335	154	38	navigating	navigate	VBG
3335	154	39	through	through	IN
3335	154	40	the	the	DT
3335	154	41	maze	maze	NN
3335	154	42	of	of	IN
3335	154	43	information	information	NN
3335	154	44	in	in	IN
3335	154	45	a	a	DT
3335	154	46	digital	digital	JJ
3335	154	47	library	library	NN
3335	154	48	.	.	.
3335	155	1	The	the	DT
3335	155	2	digital	digital	JJ
3335	155	3	library	library	NN
3335	155	4	is	be	VBZ
3335	155	5	an	an	DT
3335	155	6	interdisciplinary	interdisciplinary	JJ
3335	155	7	subject	subject	NN
3335	155	8	involving	involve	VBG
3335	155	9	several	several	JJ
3335	155	10	research	research	NN
3335	155	11	areas	area	NNS
3335	155	12	such	such	JJ
3335	155	13	as	as	IN
3335	155	14	information	information	NN
3335	155	15	retrieval	retrieval	NNP
3335	155	16	,	,	,
3335	155	17	multimedia	multimedia	NNP
3335	155	18	information	information	NN
3335	155	19	processing	processing	NN
3335	155	20	,	,	,
3335	155	21	and	and	CC
3335	155	22	clas-	clas-	JJ
3335	155	23	sification	sification	NN
3335	155	24	.	.	.
3335	156	1	All	all	PDT
3335	156	2	these	these	DT
3335	156	3	aspects	aspect	NNS
3335	156	4	of	of	IN
3335	156	5	digital	digital	JJ
3335	156	6	libraries	library	NNS
3335	156	7	make	make	VBP
3335	156	8	information	information	NN
3335	156	9	visualizations	visualization	NNS
3335	156	10	more	more	RBR
3335	156	11	complicated	complicated	JJ
3335	156	12	in	in	IN
3335	156	13	this	this	DT
3335	156	14	envi-	envi-	VBZ
3335	156	15	ronment	ronment	NN
3335	156	16	.	.	.
3335	157	1	Therefore	therefore	RB
3335	157	2	,	,	,
3335	157	3	the	the	DT
3335	157	4	systems	system	NNS
3335	157	5	described	describe	VBN
3335	157	6	in	in	IN
3335	157	7	this	this	DT
3335	157	8	paper	paper	NN
3335	157	9	have	have	VBP
3335	157	10	integrated	integrate	VBN
3335	157	11	various	various	JJ
3335	157	12	visualization	visualization	NN
3335	157	13	techniques	technique	NNS
3335	157	14	.	.	.
3335	158	1	Figure	figure	NN
3335	158	2	4	4	CD
3335	158	3	.	.	.
3335	159	1	A	a	DT
3335	159	2	wide	wide	JJ
3335	159	3	-	-	HYPH
3335	159	4	angle	angle	NN
3335	159	5	overview	overview	NN
3335	159	6	of	of	IN
3335	159	7	the	the	DT
3335	159	8	3D	3d	JJ
3335	159	9	Vase	Vase	NNP
3335	159	10	Museum	Museum	NNP
3335	159	11	ARTICLE	ARTICLE	NNP
3335	159	12	TITLE	TITLE	NNP
3335	159	13	|	|	NNP
3335	159	14	AUTHOR	AUTHOR	NNP
3335	159	15	93VISUALIZATIONS	93visualizations	CD
3335	159	16	FOR	for	IN
3335	159	17	DIGITAL	DIGITAL	NNP
3335	159	18	LIBRARIES	library	NNS
3335	159	19	|	|	NNP
3335	159	20	WAN	WAN	VBD
3335	159	21	93	93	CD
3335	159	22	The	the	DT
3335	159	23	examples	example	NNS
3335	159	24	in	in	IN
3335	159	25	this	this	DT
3335	159	26	paper	paper	NN
3335	159	27	,	,	,
3335	159	28	along	along	IN
3335	159	29	with	with	IN
3335	159	30	many	many	JJ
3335	159	31	others	other	NNS
3335	159	32	,	,	,
3335	159	33	show	show	VBP
3335	159	34	that	that	IN
3335	159	35	the	the	DT
3335	159	36	3D	3D	NNP
3335	159	37	space	space	NN
3335	159	38	metaphor	metaphor	NN
3335	159	39	has	have	VBZ
3335	159	40	attracted	attract	VBN
3335	159	41	much	much	JJ
3335	159	42	attention	attention	NN
3335	159	43	from	from	IN
3335	159	44	information	information	NN
3335	159	45	-	-	HYPH
3335	159	46	science	science	NN
3335	159	47	communities	community	NNS
3335	159	48	.	.	.
3335	160	1	The	the	DT
3335	160	2	combination	combination	NN
3335	160	3	of	of	IN
3335	160	4	3D	3d	JJ
3335	160	5	space	space	NN
3335	160	6	and	and	CC
3335	160	7	virtual	virtual	JJ
3335	160	8	reality	reality	NN
3335	160	9	that	that	WDT
3335	160	10	can	can	MD
3335	160	11	be	be	VB
3335	160	12	accessed	access	VBN
3335	160	13	from	from	IN
3335	160	14	Web	web	NN
3335	160	15	browsers	browser	NNS
3335	160	16	these	these	DT
3335	160	17	days	day	NNS
3335	160	18	is	be	VBZ
3335	160	19	becoming	become	VBG
3335	160	20	a	a	DT
3335	160	21	trend	trend	NN
3335	160	22	of	of	IN
3335	160	23	information	information	NN
3335	160	24	visualization	visualization	NN
3335	160	25	for	for	IN
3335	160	26	digital	digital	JJ
3335	160	27	librar-	librar-	NNP
3335	160	28	ies	ie	NNS
3335	160	29	.	.	.
3335	161	1	This	this	DT
3335	161	2	technique	technique	NN
3335	161	3	gives	give	VBZ
3335	161	4	the	the	DT
3335	161	5	user	user	NN
3335	161	6	maximum	maximum	NN
3335	161	7	freedom	freedom	NN
3335	161	8	to	to	TO
3335	161	9	walk	walk	VB
3335	161	10	through	through	IN
3335	161	11	the	the	DT
3335	161	12	library	library	NN
3335	161	13	collections	collection	NNS
3335	161	14	,	,	,
3335	161	15	searching	search	VBG
3335	161	16	and	and	CC
3335	161	17	browsing	browse	VBG
3335	161	18	documents	document	NNS
3335	161	19	.	.	.
3335	162	1	The	the	DT
3335	162	2	3D	3d	JJ
3335	162	3	visual	visual	JJ
3335	162	4	structures	structure	NNS
3335	162	5	,	,	,
3335	162	6	however	however	RB
3335	162	7	,	,	,
3335	162	8	have	have	VBP
3335	162	9	greater	great	JJR
3335	162	10	implementations	implementation	NNS
3335	162	11	compared	compare	VBN
3335	162	12	with	with	IN
3335	162	13	those	those	DT
3335	162	14	that	that	WDT
3335	162	15	are	be	VBP
3335	162	16	2D	2D	VBN
3335	162	17	,	,	,
3335	162	18	since	since	IN
3335	162	19	they	-PRON-	PRP
3335	162	20	require	require	VBP
3335	162	21	more	more	JJR
3335	162	22	processing	processing	NN
3335	162	23	power	power	NN
3335	162	24	and	and	CC
3335	162	25	include	include	VBP
3335	162	26	more	more	JJR
3335	162	27	parameters.25	parameters.25	NN
3335	162	28	That	that	DT
3335	162	29	is	be	VBZ
3335	162	30	partly	partly	RB
3335	162	31	why	why	WRB
3335	162	32	many	many	JJ
3335	162	33	2D	2d	JJ
3335	162	34	visualizations	visualization	NNS
3335	162	35	developed	develop	VBN
3335	162	36	in	in	IN
3335	162	37	the	the	DT
3335	162	38	1990s	1990	NNS
3335	162	39	are	be	VBP
3335	162	40	still	still	RB
3335	162	41	widely	widely	RB
3335	162	42	used	use	VBN
3335	162	43	.	.	.
3335	163	1	For	for	IN
3335	163	2	example	example	NN
3335	163	3	,	,	,
3335	163	4	both	both	CC
3335	163	5	ActiveGraph	ActiveGraph	NNP
3335	163	6	and	and	CC
3335	163	7	3D	3D	NNP
3335	163	8	Vase	Vase	NNP
3335	163	9	Museum	Museum	NNP
3335	163	10	have	have	VBP
3335	163	11	employed	employ	VBN
3335	163	12	2D	2D	VBN
3335	163	13	scatter	scatter	NN
3335	163	14	plots	plot	NNS
3335	163	15	;	;	:
3335	163	16	both	both	CC
3335	163	17	UC	UC	NNP
3335	163	18	system	system	NN
3335	163	19	and	and	CC
3335	163	20	Collaborative	collaborative	JJ
3335	163	21	Visual	visual	JJ
3335	163	22	Interfaces	Interfaces	NNPS
3335	163	23	have	have	VBP
3335	163	24	used	use	VBN
3335	163	25	Treemaps	treemap	NNS
3335	163	26	.	.	.
3335	164	1	Furthermore	furthermore	RB
3335	164	2	,	,	,
3335	164	3	it	-PRON-	PRP
3335	164	4	is	be	VBZ
3335	164	5	very	very	RB
3335	164	6	important	important	JJ
3335	164	7	to	to	TO
3335	164	8	focus	focus	VB
3335	164	9	on	on	IN
3335	164	10	the	the	DT
3335	164	11	actual	actual	JJ
3335	164	12	needs	need	NNS
3335	164	13	of	of	IN
3335	164	14	users	user	NNS
3335	164	15	.	.	.
3335	165	1	Research	research	NN
3335	165	2	on	on	IN
3335	165	3	any	any	DT
3335	165	4	visualization	visualization	NN
3335	165	5	for	for	IN
3335	165	6	digital	digital	JJ
3335	165	7	libraries	library	NNS
3335	165	8	should	should	MD
3335	165	9	be	be	VB
3335	165	10	based	base	VBN
3335	165	11	on	on	IN
3335	165	12	the	the	DT
3335	165	13	detailed	detailed	JJ
3335	165	14	analy-	analy-	NNS
3335	165	15	sis	sis	NN
3335	165	16	of	of	IN
3335	165	17	users	user	NNS
3335	165	18	,	,	,
3335	165	19	their	-PRON-	PRP$
3335	165	20	information	information	NN
3335	165	21	needs	need	VBZ
3335	165	22	,	,	,
3335	165	23	and	and	CC
3335	165	24	their	-PRON-	PRP$
3335	165	25	tasks.26	tasks.26	NNP
3335	165	26	Usability	Usability	NNP
3335	165	27	tests	test	NNS
3335	165	28	have	have	VBP
3335	165	29	been	be	VBN
3335	165	30	done	do	VBN
3335	165	31	for	for	IN
3335	165	32	some	some	DT
3335	165	33	of	of	IN
3335	165	34	the	the	DT
3335	165	35	above	above	JJ
3335	165	36	applications	application	NNS
3335	165	37	,	,	,
3335	165	38	but	but	CC
3335	165	39	not	not	RB
3335	165	40	for	for	IN
3335	165	41	all	all	DT
3335	165	42	of	of	IN
3335	165	43	them	-PRON-	PRP
3335	165	44	.	.	.
3335	166	1	Further	further	JJ
3335	166	2	research	research	NN
3335	166	3	and	and	CC
3335	166	4	usability	usability	NN
3335	166	5	tests	test	NNS
3335	166	6	are	be	VBP
3335	166	7	required	require	VBN
3335	166	8	to	to	TO
3335	166	9	determine	determine	VB
3335	166	10	to	to	IN
3335	166	11	what	what	WDT
3335	166	12	extent	extent	NN
3335	166	13	a	a	DT
3335	166	14	visual	visual	JJ
3335	166	15	interface	interface	NN
3335	166	16	facilitates	facilitate	VBZ
3335	166	17	the	the	DT
3335	166	18	user	user	NN
3335	166	19	’s	's	POS
3335	166	20	perception	perception	NN
3335	166	21	of	of	IN
3335	166	22	information	information	NN
3335	166	23	.	.	.
3335	167	1	References	reference	NNS
3335	167	2	and	and	CC
3335	167	3	notes	note	VBZ
3335	167	4	1	1	CD
3335	167	5	.	.	.
3335	168	1	R.	R.	NNP
3335	168	2	Rao	Rao	NNP
3335	168	3	et	et	NNP
3335	168	4	al	al	NNP
3335	168	5	.	.	NNP
3335	168	6	,	,	,
3335	168	7	“	"	``
3335	168	8	Rich	Rich	NNP
3335	168	9	Interaction	Interaction	NNP
3335	168	10	in	in	IN
3335	168	11	the	the	DT
3335	168	12	Digital	Digital	NNP
3335	168	13	Library	Library	NNP
3335	168	14	,	,	,
3335	168	15	”	"	''
3335	168	16	Communications	Communications	NNPS
3335	168	17	of	of	IN
3335	168	18	ACM	ACM	NNP
3335	168	19	38	38	CD
3335	168	20	,	,	,
3335	168	21	no	no	UH
3335	168	22	.	.	.
3335	169	1	4	4	CD
3335	169	2	(	(	-LRB-
3335	169	3	1996	1996	CD
3335	169	4	)	)	-RRB-
3335	169	5	:	:	:
3335	169	6	29–39	29–39	CD
3335	169	7	.	.	.
3335	170	1	2	2	LS
3335	170	2	.	.	.
3335	171	1	P.	P.	NNP
3335	171	2	Zaphiris	Zaphiris	NNP
3335	171	3	et	et	NNP
3335	171	4	al	al	NNP
3335	171	5	,	,	,
3335	171	6	“	"	``
3335	171	7	Exploring	explore	VBG
3335	171	8	the	the	DT
3335	171	9	User	User	NNP
3335	171	10	of	of	IN
3335	171	11	Information	Information	NNP
3335	171	12	Visu-	Visu-	NNP
3335	171	13	alization	alization	NN
3335	171	14	for	for	IN
3335	171	15	Digital	Digital	NNP
3335	171	16	Libraries	Libraries	NNPS
3335	171	17	,	,	,
3335	171	18	”	"	''
3335	171	19	The	the	DT
3335	171	20	New	New	NNP
3335	171	21	Review	Review	NNP
3335	171	22	of	of	IN
3335	171	23	Information	Information	NNP
3335	171	24	Networking	Networking	NNP
3335	171	25	10	10	CD
3335	171	26	,	,	,
3335	171	27	no	no	UH
3335	171	28	.	.	.
3335	172	1	1	1	CD
3335	172	2	(	(	-LRB-
3335	172	3	2004	2004	CD
3335	172	4	)	)	-RRB-
3335	172	5	:	:	:
3335	172	6	51–69	51–69	LS
3335	172	7	.	.	.
3335	173	1	3	3	LS
3335	173	2	.	.	.
3335	174	1	B.	B.	NNP
3335	174	2	Shneiderman	Shneiderman	NNP
3335	174	3	et	et	NNP
3335	174	4	al	al	NNP
3335	174	5	.	.	NNP
3335	174	6	,	,	,
3335	174	7	“	"	``
3335	174	8	Digital	Digital	NNP
3335	174	9	Library	Library	NNP
3335	174	10	Search	Search	NNP
3335	174	11	Results	Results	NNPS
3335	174	12	with	with	IN
3335	174	13	Categorical	Categorical	NNP
3335	174	14	and	and	CC
3335	174	15	Hierarchical	Hierarchical	NNP
3335	174	16	Axes	Axes	NNP
3335	174	17	,	,	,
3335	174	18	”	"	''
3335	174	19	DL-00	DL-00	NNP
3335	174	20	:	:	:
3335	174	21	5th	5th	JJ
3335	174	22	ACM	ACM	NNP
3335	174	23	Digital	Digital	NNP
3335	174	24	Library	Library	NNP
3335	174	25	Conference	Conference	NNP
3335	174	26	,	,	,
3335	174	27	San	San	NNP
3335	174	28	Antonio	Antonio	NNP
3335	174	29	(	(	-LRB-
3335	174	30	New	New	NNP
3335	174	31	York	York	NNP
3335	174	32	:	:	:
3335	174	33	ACM	ACM	NNP
3335	174	34	Pr	Pr	NNP
3335	174	35	.	.	NNP
3335	174	36	,	,	,
3335	174	37	1999	1999	CD
3335	174	38	)	)	-RRB-
3335	174	39	.	.	.
3335	175	1	4	4	LS
3335	175	2	.	.	.
3335	176	1	Y.	Y.	NNP
3335	176	2	Liu	Liu	NNP
3335	176	3	et	et	NNP
3335	176	4	al	al	NNP
3335	176	5	,	,	,
3335	176	6	“	"	``
3335	176	7	Visualizing	visualize	VBG
3335	176	8	Document	Document	NNP
3335	176	9	Classification	Classification	NNP
3335	176	10	:	:	:
3335	176	11	A	a	DT
3335	176	12	Search	Search	NNP
3335	176	13	Aid	aid	NN
3335	176	14	for	for	IN
3335	176	15	the	the	DT
3335	176	16	Digital	Digital	NNP
3335	176	17	Library	Library	NNP
3335	176	18	,	,	,
3335	176	19	”	"	''
3335	176	20	Journal	Journal	NNP
3335	176	21	of	of	IN
3335	176	22	the	the	DT
3335	176	23	American	American	NNP
3335	176	24	Society	Society	NNP
3335	176	25	for	for	IN
3335	176	26	Information	Information	NNP
3335	176	27	Science	Science	NNP
3335	176	28	51	51	CD
3335	176	29	,	,	,
3335	176	30	no	no	UH
3335	176	31	.	.	.
3335	177	1	3	3	CD
3335	177	2	(	(	-LRB-
3335	177	3	2000	2000	CD
3335	177	4	)	)	-RRB-
3335	177	5	,	,	,
3335	177	6	216–27	216–27	CD
3335	177	7	.	.	.
3335	178	1	5	5	CD
3335	178	2	.	.	.
3335	179	1	Shneiderman	Shneiderman	NNP
3335	179	2	et	et	NNP
3335	179	3	al	al	NNP
3335	179	4	.	.	NNP
3335	179	5	,	,	,
3335	179	6	“	"	``
3335	179	7	Digital	Digital	NNP
3335	179	8	Library	Library	NNP
3335	179	9	Search	Search	NNP
3335	179	10	Results	Results	NNPS
3335	179	11	with	with	IN
3335	179	12	Categorical	Categorical	NNP
3335	179	13	and	and	CC
3335	179	14	Hierarchical	Hierarchical	NNP
3335	179	15	Axes	Axes	NNP
3335	179	16	.	.	.
3335	179	17	”	"	''
3335	179	18	6	6	CD
3335	179	19	.	.	.
3335	180	1	M.	M.	NNP
3335	180	2	Hascoet	Hascoet	NNP
3335	180	3	,	,	,
3335	180	4	“	"	``
3335	180	5	Using	use	VBG
3335	180	6	Maps	Maps	NNPS
3335	180	7	As	as	IN
3335	180	8	a	a	DT
3335	180	9	User	User	NNP
3335	180	10	Interface	Interface	NNP
3335	180	11	to	to	IN
3335	180	12	a	a	DT
3335	180	13	Digital	Digital	NNP
3335	180	14	Library	Library	NNP
3335	180	15	,	,	,
3335	180	16	”	"	''
3335	180	17	SIGIR	SIGIR	NNP
3335	180	18	’	'	''
3335	180	19	98	98	CD
3335	180	20	,	,	,
3335	180	21	Melbourne	Melbourne	NNP
3335	180	22	,	,	,
3335	180	23	Australia	Australia	NNP
3335	180	24	(	(	-LRB-
3335	180	25	New	New	NNP
3335	180	26	York	York	NNP
3335	180	27	:	:	:
3335	180	28	ACM	ACM	NNP
3335	180	29	Pr	Pr	NNP
3335	180	30	.	.	NNP
3335	180	31	,	,	,
3335	180	32	1998	1998	CD
3335	180	33	)	)	-RRB-
3335	180	34	.	.	.
3335	181	1	7	7	LS
3335	181	2	.	.	.
3335	182	1	C.	C.	NNP
3335	182	2	Ahlberg	Ahlberg	NNP
3335	182	3	and	and	CC
3335	182	4	B.	B.	NNP
3335	182	5	Shneiderman	Shneiderman	NNP
3335	182	6	,	,	,
3335	182	7	“	"	``
3335	182	8	Visual	visual	JJ
3335	182	9	Information	information	NN
3335	182	10	Seeking	seek	VBG
3335	182	11	Using	use	VBG
3335	182	12	the	the	DT
3335	182	13	FilmFinder	FilmFinder	NNP
3335	182	14	,	,	,
3335	182	15	”	"	''
3335	182	16	ACM	ACM	NNP
3335	182	17	CHI94	CHI94	.
3335	182	18	Conference	Conference	NNP
3335	182	19	,	,	,
3335	182	20	Boston	Boston	NNP
3335	182	21	(	(	-LRB-
3335	182	22	New	New	NNP
3335	182	23	York	York	NNP
3335	182	24	:	:	:
3335	182	25	ACM	ACM	NNP
3335	182	26	Pr	Pr	NNP
3335	182	27	.	.	NNP
3335	182	28	,	,	,
3335	182	29	1994	1994	CD
3335	182	30	)	)	-RRB-
3335	182	31	.	.	.
3335	183	1	8	8	LS
3335	183	2	.	.	.
3335	184	1	K.	K.	NNP
3335	184	2	Doan	Doan	NNP
3335	184	3	et	et	NNP
3335	184	4	al	al	NNP
3335	184	5	.	.	NNP
3335	184	6	,	,	,
3335	184	7	“	"	``
3335	184	8	Query	Query	NNP
3335	184	9	Previews	Previews	NNPS
3335	184	10	for	for	IN
3335	184	11	Networked	Networked	NNP
3335	184	12	Informa-	Informa-	NNP
3335	184	13	tion	tion	NN
3335	184	14	Services	Services	NNPS
3335	184	15	,	,	,
3335	184	16	”	"	''
3335	184	17	Advanced	Advanced	NNP
3335	184	18	Digital	Digital	NNP
3335	184	19	Libraries	Libraries	NNPS
3335	184	20	Conference	Conference	NNP
3335	184	21	(	(	-LRB-
3335	184	22	Washington	Washington	NNP
3335	184	23	:	:	:
3335	184	24	IEEE	IEEE	NNP
3335	184	25	,	,	,
3335	184	26	1996	1996	CD
3335	184	27	)	)	-RRB-
3335	184	28	.	.	.
3335	185	1	9	9	CD
3335	185	2	.	.	.
3335	186	1	K.	K.	NNP
3335	186	2	Borner	Borner	NNP
3335	186	3	et	et	NNP
3335	186	4	al	al	NNP
3335	186	5	.	.	NNP
3335	186	6	,	,	,
3335	186	7	“	"	``
3335	186	8	LVis	lvi	VBN
3335	186	9	—	—	:
3335	186	10	Digital	Digital	NNP
3335	186	11	Library	Library	NNP
3335	186	12	Visualizer	Visualizer	NNP
3335	186	13	,	,	,
3335	186	14	”	"	''
3335	186	15	Pro-	pro-	NN
3335	186	16	ceedings	ceeding	NNS
3335	186	17	,	,	,
3335	186	18	IEEE	IEEE	NNP
3335	186	19	International	International	NNP
3335	186	20	Conference	Conference	NNP
3335	186	21	on	on	IN
3335	186	22	Information	Information	NNP
3335	186	23	Visual-	Visual-	NNP
3335	186	24	Figure	Figure	NNP
3335	186	25	5.2	5.2	CD
3335	186	26	.	.	.
3335	187	1	Interface	interface	NN
3335	187	2	to	to	IN
3335	187	3	the	the	DT
3335	187	4	document	document	NN
3335	187	5	space	space	NN
3335	187	6	Figure	Figure	NNP
3335	187	7	5.1	5.1	CD
3335	187	8	.	.	.
3335	188	1	A	a	DT
3335	188	2	semantic	semantic	JJ
3335	188	3	Treemap	Treemap	NNP
3335	188	4	of	of	IN
3335	188	5	Web	web	NN
3335	188	6	links	link	NNS
3335	188	7	Figure	Figure	NNP
3335	188	8	6	6	CD
3335	188	9	.	.	.
3335	189	1	A	a	DT
3335	189	2	search	search	NN
3335	189	3	display	display	NN
3335	189	4	in	in	IN
3335	189	5	AquaBrowser	AquaBrowser	NNP
3335	189	6	94	94	CD
3335	189	7	INFORMATION	INFORMATION	NNP
3335	189	8	TECHNOLOGY	technology	NN
3335	189	9	AND	and	CC
3335	189	10	LIBRARIES	LIBRARIES	NNP
3335	189	11	|	|	NNP
3335	189	12	JUNE	JUNE	NNP
3335	189	13	2006	2006	CD
3335	189	14	ization	ization	NN
3335	189	15	,	,	,
3335	189	16	July	July	NNP
3335	189	17	19–21	19–21	CD
3335	189	18	,	,	,
3335	189	19	2000	2000	CD
3335	189	20	,	,	,
3335	189	21	London	London	NNP
3335	189	22	,	,	,
3335	189	23	England	England	NNP
3335	189	24	(	(	-LRB-
3335	189	25	Los	Los	NNP
3335	189	26	Alamitos	Alamitos	NNP
3335	189	27	,	,	,
3335	189	28	Calif.	California	NNP
3335	189	29	:	:	:
3335	189	30	IEEE	IEEE	NNP
3335	189	31	Computer	Computer	NNP
3335	189	32	Society	Society	NNP
3335	189	33	,	,	,
3335	189	34	2000	2000	CD
3335	189	35	)	)	-RRB-
3335	189	36	,	,	,
3335	189	37	77–81	77–81	CD
3335	189	38	.	.	.
3335	190	1	10	10	CD
3335	190	2	.	.	.
3335	191	1	C.	C.	NNP
3335	191	2	Cruz	Cruz	NNP
3335	191	3	-	-	HYPH
3335	191	4	Neira	Neira	NNP
3335	191	5	et	et	NNP
3335	191	6	al	al	NNP
3335	191	7	.	.	NNP
3335	191	8	,	,	,
3335	191	9	“	"	``
3335	191	10	Surround	surround	NN
3335	191	11	-	-	HYPH
3335	191	12	screen	screen	NN
3335	191	13	Projection	projection	NN
3335	191	14	-	-	HYPH
3335	191	15	based	base	VBN
3335	191	16	Virtual	virtual	JJ
3335	191	17	Reality	reality	NN
3335	191	18	:	:	:
3335	191	19	The	the	DT
3335	191	20	Design	Design	NNP
3335	191	21	and	and	CC
3335	191	22	Implementation	implementation	NN
3335	191	23	of	of	IN
3335	191	24	the	the	DT
3335	191	25	CAVE	CAVE	NNPS
3335	191	26	,	,	,
3335	191	27	”	"	''
3335	191	28	Computer	Computer	NNP
3335	191	29	Graphics	Graphics	NNPS
3335	191	30	(	(	-LRB-
3335	191	31	Proceedings	Proceedings	NNPS
3335	191	32	of	of	IN
3335	191	33	SIGGRAPH	SIGGRAPH	NNP
3335	191	34	’	'	''
3335	191	35	93	93	CD
3335	191	36	)	)	-RRB-
3335	191	37	,	,	,
3335	191	38	vol	vol	NNP
3335	191	39	.	.	.
3335	192	1	27	27	CD
3335	192	2	(	(	-LRB-
3335	192	3	New	New	NNP
3335	192	4	York	York	NNP
3335	192	5	:	:	:
3335	192	6	ACM	ACM	NNP
3335	192	7	SIGGRAPH	SIGGRAPH	NNP
3335	192	8	,	,	,
3335	192	9	1993	1993	CD
3335	192	10	)	)	-RRB-
3335	192	11	,	,	,
3335	192	12	135–42	135–42	CD
3335	192	13	.	.	.
3335	193	1	11	11	CD
3335	193	2	.	.	.
3335	194	1	K.	K.	NNP
3335	194	2	Borner	Borner	NNP
3335	194	3	et	et	NNP
3335	194	4	al	al	NNP
3335	194	5	.	.	NNP
3335	194	6	,	,	,
3335	194	7	“	"	``
3335	194	8	LVis	lvi	VBN
3335	194	9	—	—	:
3335	194	10	Digital	Digital	NNP
3335	194	11	Library	Library	NNP
3335	194	12	Visualizer	Visualizer	NNP
3335	194	13	.	.	.
3335	194	14	”	"	''
3335	194	15	12	12	CD
3335	194	16	.	.	.
3335	195	1	L.	L.	NNP
3335	195	2	E.	E.	NNP
3335	195	3	Good	Good	NNP
3335	195	4	et	et	NNP
3335	195	5	al	al	NNP
3335	195	6	.	.	NNP
3335	195	7	,	,	,
3335	195	8	“	"	``
3335	195	9	A	a	DT
3335	195	10	Fluid	Fluid	NNP
3335	195	11	Treemap	Treemap	NNP
3335	195	12	Interface	Interface	NNP
3335	195	13	for	for	IN
3335	195	14	Personal	Personal	NNP
3335	195	15	Digital	Digital	NNP
3335	195	16	Libraries	Libraries	NNPS
3335	195	17	,	,	,
3335	195	18	”	"	''
3335	195	19	JCDL’05	JCDL’05	NNP
3335	195	20	,	,	,
3335	195	21	June	June	NNP
3335	195	22	7–11	7–11	NNP
3335	195	23	,	,	,
3335	195	24	Denver	Denver	NNP
3335	195	25	(	(	-LRB-
3335	195	26	New	New	NNP
3335	195	27	York	York	NNP
3335	195	28	:	:	:
3335	195	29	ACM	ACM	NNP
3335	195	30	Pr	Pr	NNP
3335	195	31	.	.	NNP
3335	195	32	,	,	,
3335	195	33	2005	2005	CD
3335	195	34	)	)	-RRB-
3335	195	35	.	.	.
3335	196	1	13	13	CD
3335	196	2	.	.	.
3335	197	1	W.	W.	NNP
3335	197	2	C.	C.	NNP
3335	197	3	Janssen	Janssen	NNP
3335	197	4	and	and	CC
3335	197	5	K.	K.	NNP
3335	197	6	Popat	Popat	NNP
3335	197	7	,	,	,
3335	197	8	“	"	``
3335	197	9	Uplib	uplib	JJ
3335	197	10	:	:	:
3335	197	11	A	a	DT
3335	197	12	Universal	Universal	NNP
3335	197	13	Personal	Personal	NNP
3335	197	14	Digital	Digital	NNP
3335	197	15	Library	Library	NNP
3335	197	16	System	System	NNP
3335	197	17	,	,	,
3335	197	18	”	"	''
3335	197	19	ACM	ACM	NNP
3335	197	20	Symposium	Symposium	NNP
3335	197	21	on	on	IN
3335	197	22	Document	Document	NNP
3335	197	23	Engineer-	Engineer-	NNP
3335	197	24	ing	ing	NNP
3335	197	25	(	(	-LRB-
3335	197	26	New	New	NNP
3335	197	27	York	York	NNP
3335	197	28	:	:	:
3335	197	29	ACM	ACM	NNP
3335	197	30	Press	Press	NNP
3335	197	31	,	,	,
3335	197	32	2003	2003	CD
3335	197	33	)	)	-RRB-
3335	197	34	,	,	,
3335	197	35	234	234	CD
3335	197	36	.	.	.
3335	198	1	14	14	CD
3335	198	2	.	.	.
3335	199	1	Good	good	JJ
3335	199	2	et	et	FW
3335	199	3	al	al	NNP
3335	199	4	.	.	NNP
3335	199	5	,	,	,
3335	199	6	“	"	``
3335	199	7	A	a	DT
3335	199	8	Fluid	Fluid	NNP
3335	199	9	Treemap	Treemap	NNP
3335	199	10	Interface	Interface	NNP
3335	199	11	for	for	IN
3335	199	12	Personal	Personal	NNP
3335	199	13	Digi-	Digi-	NNP
3335	199	14	tal	tal	NN
3335	199	15	Libraries	library	NNS
3335	199	16	.	.	.
3335	199	17	”	"	''
3335	199	18	15	15	CD
3335	199	19	.	.	.
3335	200	1	B.	B.	NNP
3335	201	1	B.	B.	NNP
3335	201	2	Bederson	Bederson	NNP
3335	201	3	et	et	NNP
3335	201	4	al	al	NNP
3335	201	5	.	.	NNP
3335	201	6	,	,	,
3335	201	7	“	"	``
3335	201	8	Ordered	Ordered	NNP
3335	201	9	and	and	CC
3335	201	10	Quantum	Quantum	NNP
3335	201	11	Treemaps	Treemaps	NNPS
3335	201	12	:	:	:
3335	201	13	Making	make	VBG
3335	201	14	Effective	effective	JJ
3335	201	15	Use	Use	NNP
3335	201	16	of	of	IN
3335	201	17	2D	2d	JJ
3335	201	18	Space	space	NN
3335	201	19	to	to	TO
3335	201	20	Display	Display	NNP
3335	201	21	Hierarchies	Hierarchies	NNP
3335	201	22	,	,	,
3335	201	23	”	"	''
3335	201	24	ACM	ACM	NNP
3335	201	25	Transactions	Transactions	NNPS
3335	201	26	on	on	IN
3335	201	27	Computer	Computer	NNP
3335	201	28	Graphics	Graphics	NNP
3335	201	29	21	21	CD
3335	201	30	,	,	,
3335	201	31	no	no	UH
3335	201	32	.	.	.
3335	202	1	4	4	CD
3335	202	2	(	(	-LRB-
3335	202	3	2002	2002	CD
3335	202	4	)	)	-RRB-
3335	202	5	:	:	:
3335	202	6	833–54	833–54	CD
3335	202	7	.	.	.
3335	203	1	16	16	CD
3335	203	2	.	.	.
3335	204	1	L.	L.	NNP
3335	204	2	E.	E.	NNP
3335	204	3	Good	Good	NNP
3335	204	4	et	et	NNP
3335	204	5	al	al	NNP
3335	204	6	.	.	NNP
3335	204	7	,	,	,
3335	204	8	“	"	``
3335	204	9	Zoomable	Zoomable	NNP
3335	204	10	User	User	NNP
3335	204	11	Interface	Interface	NNP
3335	204	12	for	for	IN
3335	204	13	In	in	IN
3335	204	14	-	-	HYPH
3335	204	15	Depth	depth	NN
3335	204	16	Reading	reading	NN
3335	204	17	,	,	,
3335	204	18	”	"	''
3335	204	19	JCDL’04	JCDL’04	NNP
3335	204	20	,	,	,
3335	204	21	June	June	NNP
3335	204	22	7–11	7–11	NNP
3335	204	23	,	,	,
3335	204	24	Tucson	Tucson	NNP
3335	204	25	,	,	,
3335	204	26	Ariz.	Arizona	NNP
3335	204	27	(	(	-LRB-
3335	204	28	New	New	NNP
3335	204	29	York	York	NNP
3335	204	30	:	:	:
3335	204	31	ACM	ACM	NNP
3335	204	32	Pr	Pr	NNP
3335	204	33	.	.	NNP
3335	204	34	,	,	,
3335	204	35	2004	2004	CD
3335	204	36	)	)	-RRB-
3335	204	37	17	17	CD
3335	204	38	.	.	.
3335	205	1	L.	L.	NNP
3335	205	2	Marks	Marks	NNP
3335	205	3	et	et	NNP
3335	205	4	al	al	NNP
3335	205	5	.	.	NNP
3335	205	6	,	,	,
3335	205	7	“	"	``
3335	205	8	ActiveGraph	ActiveGraph	NNP
3335	205	9	:	:	:
3335	205	10	A	a	DT
3335	205	11	Digital	Digital	NNP
3335	205	12	Library	Library	NNP
3335	205	13	Visualiza-	Visualiza-	NNP
3335	205	14	tion	tion	NN
3335	205	15	Tool	tool	NN
3335	205	16	,	,	,
3335	205	17	”	"	''
3335	205	18	International	International	NNP
3335	205	19	Journal	Journal	NNP
3335	205	20	on	on	IN
3335	205	21	Digital	Digital	NNP
3335	205	22	Libraries	Libraries	NNP
3335	205	23	5	5	CD
3335	205	24	,	,	,
3335	205	25	no	no	UH
3335	205	26	.	.	.
3335	206	1	1	1	LS
3335	206	2	(	(	-LRB-
3335	206	3	Mar.	March	NNP
3335	207	1	2005	2005	CD
3335	207	2	)	)	-RRB-
3335	207	3	,	,	,
3335	207	4	57–69	57–69	CD
3335	207	5	.	.	.
3335	208	1	18	18	CD
3335	208	2	.	.	.
3335	209	1	Ibid	ibid	RB
3335	209	2	.	.	.
3335	210	1	19	19	CD
3335	210	2	.	.	.
3335	211	1	E.	E.	NNP
3335	211	2	R.	R.	NNP
3335	211	3	Tufte	Tufte	NNP
3335	211	4	,	,	,
3335	211	5	The	the	DT
3335	211	6	Visual	visual	JJ
3335	211	7	Display	display	NN
3335	211	8	of	of	IN
3335	211	9	Quantitative	quantitative	JJ
3335	211	10	Information	information	NN
3335	211	11	(	(	-LRB-
3335	211	12	Cheshire	Cheshire	NNP
3335	211	13	,	,	,
3335	211	14	Conn.	Connecticut	NNP
3335	211	15	:	:	:
3335	211	16	Graphics	Graphics	NNP
3335	211	17	Pr	Pr	NNP
3335	211	18	.	.	NNP
3335	211	19	,	,	,
3335	211	20	1983	1983	CD
3335	211	21	)	)	-RRB-
3335	211	22	.	.	.
3335	212	1	20	20	CD
3335	212	2	.	.	.
3335	213	1	H.	H.	NNP
3335	213	2	Shiaw	Shiaw	NNP
3335	213	3	et	et	FW
3335	213	4	al	al	NNP
3335	213	5	.	.	NNP
3335	213	6	,	,	,
3335	213	7	“	"	``
3335	213	8	The	the	DT
3335	213	9	3D	3d	JJ
3335	213	10	Vase	Vase	NNP
3335	213	11	Museum	Museum	NNP
3335	213	12	:	:	:
3335	213	13	A	a	DT
3335	213	14	New	New	NNP
3335	213	15	Approach	Approach	NNP
3335	213	16	to	to	IN
3335	213	17	Context	Context	NNP
3335	213	18	in	in	IN
3335	213	19	a	a	DT
3335	213	20	Digital	Digital	NNP
3335	213	21	Library	Library	NNP
3335	213	22	,	,	,
3335	213	23	”	"	''
3335	213	24	JCDL’04	JCDL’04	NNP
3335	213	25	,	,	,
3335	213	26	June	June	NNP
3335	213	27	7–11	7–11	NNP
3335	213	28	,	,	,
3335	213	29	Tucson	Tucson	NNP
3335	213	30	,	,	,
3335	213	31	Ariz.	Arizona	NNP
3335	213	32	(	(	-LRB-
3335	213	33	New	New	NNP
3335	213	34	York	York	NNP
3335	213	35	:	:	:
3335	213	36	ACM	ACM	NNP
3335	213	37	Pr	Pr	NNP
3335	213	38	.	.	NNP
3335	213	39	,	,	,
3335	213	40	2004	2004	CD
3335	213	41	)	)	-RRB-
3335	213	42	.	.	.
3335	214	1	21	21	CD
3335	214	2	.	.	.
3335	215	1	Ibid	ibid	RB
3335	215	2	.	.	.
3335	216	1	22	22	CD
3335	216	2	.	.	.
3335	217	1	K.	K.	NNP
3335	217	2	Borner	Borner	NNP
3335	217	3	et	et	NNP
3335	217	4	al	al	NNP
3335	217	5	.	.	NNP
3335	217	6	,	,	,
3335	217	7	“	"	``
3335	217	8	Collaborative	collaborative	JJ
3335	217	9	Visual	visual	JJ
3335	217	10	Interfaces	interface	NNS
3335	217	11	to	to	IN
3335	217	12	Digital	Digital	NNP
3335	217	13	Libraries	Libraries	NNPS
3335	217	14	,	,	,
3335	217	15	”	"	''
3335	217	16	JCDL’02	JCDL’02	NNP
3335	217	17	,	,	,
3335	217	18	July	July	NNP
3335	217	19	13–17	13–17	CD
3335	217	20	,	,	,
3335	217	21	Portland	Portland	NNP
3335	217	22	,	,	,
3335	217	23	Ore.	Oregon	NNP
3335	217	24	(	(	-LRB-
3335	217	25	New	New	NNP
3335	217	26	York	York	NNP
3335	217	27	:	:	:
3335	217	28	ACM	ACM	NNP
3335	217	29	Pr	Pr	NNP
3335	217	30	.	.	NNP
3335	217	31	,	,	,
3335	217	32	2002	2002	CD
3335	217	33	)	)	-RRB-
3335	217	34	.	.	.
3335	218	1	23	23	CD
3335	218	2	.	.	.
3335	219	1	Y.	Y.	NNP
3335	219	2	Feng	Feng	NNP
3335	219	3	and	and	CC
3335	219	4	K.	K.	NNP
3335	219	5	Borner	Borner	NNP
3335	219	6	,	,	,
3335	219	7	“	"	``
3335	219	8	Using	use	VBG
3335	219	9	Semantic	semantic	JJ
3335	219	10	Treemaps	treemap	NNS
3335	219	11	to	to	IN
3335	219	12	Cat-	cat-	NN
3335	219	13	egorize	egorize	VB
3335	219	14	and	and	CC
3335	219	15	Visualize	Visualize	NNP
3335	219	16	Bookmark	Bookmark	NNP
3335	219	17	Files	Files	NNP
3335	219	18	,	,	,
3335	219	19	”	"	''
3335	219	20	Visualization	Visualization	NNP
3335	219	21	and	and	CC
3335	219	22	Data	Data	NNP
3335	219	23	Analysis	Analysis	NNP
3335	219	24	2002	2002	CD
3335	219	25	:	:	:
3335	219	26	21–22	21–22	CD
3335	219	27	January	January	NNP
3335	219	28	2002	2002	CD
3335	219	29	,	,	,
3335	219	30	San	San	NNP
3335	219	31	Jose	Jose	NNP
3335	219	32	,	,	,
3335	219	33	USA	USA	NNP
3335	219	34	(	(	-LRB-
3335	219	35	Proceedings	Proceedings	NNP
3335	219	36	of	of	IN
3335	219	37	SPIE	SPIE	NNP
3335	219	38	,	,	,
3335	219	39	v.	v.	CC
3335	219	40	4665	4665	CD
3335	219	41	)	)	-RRB-
3335	219	42	(	(	-LRB-
3335	219	43	Bellingham	Bellingham	NNP
3335	219	44	,	,	,
3335	219	45	Wash.	Washington	NNP
3335	219	46	:	:	:
3335	219	47	SPIE	spie	NN
3335	219	48	—	—	:
3335	219	49	the	the	DT
3335	219	50	International	International	NNP
3335	219	51	Society	Society	NNP
3335	219	52	for	for	IN
3335	219	53	Optical	Optical	NNP
3335	219	54	Engineering	Engineering	NNP
3335	219	55	,	,	,
3335	219	56	2002	2002	CD
3335	219	57	)	)	-RRB-
3335	219	58	,	,	,
3335	219	59	218–27	218–27	CD
3335	219	60	.	.	.
3335	220	1	24	24	CD
3335	220	2	.	.	.
3335	221	1	A.	A.	NNP
3335	221	2	Veling	Veling	NNP
3335	221	3	,	,	,
3335	221	4	“	"	``
3335	221	5	The	the	DT
3335	221	6	AquaBrowser	AquaBrowser	NNP
3335	221	7	—	—	:
3335	221	8	Visualization	visualization	NN
3335	221	9	of	of	IN
3335	221	10	Dynamic	Dynamic	NNP
3335	221	11	Concept	Concept	NNP
3335	221	12	Spaces	Spaces	NNPS
3335	221	13	,	,	,
3335	221	14	”	"	''
3335	221	15	Journal	Journal	NNP
3335	221	16	of	of	IN
3335	221	17	AGSI	AGSI	NNP
3335	221	18	6	6	CD
3335	221	19	,	,	,
3335	221	20	no	no	UH
3335	221	21	.	.	.
3335	222	1	3	3	CD
3335	222	2	(	(	-LRB-
3335	222	3	1997	1997	CD
3335	222	4	)	)	-RRB-
3335	222	5	:	:	:
3335	222	6	136–42	136–42	CD
3335	222	7	.	.	.
3335	223	1	25	25	CD
3335	223	2	.	.	.
3335	224	1	B.	B.	NNP
3335	224	2	Eden	Eden	NNP
3335	224	3	,	,	,
3335	224	4	“	"	``
3335	224	5	3D	3d	JJ
3335	224	6	Visualization	visualization	NN
3335	224	7	Techniques	Techniques	NNPS
3335	224	8	:	:	:
3335	224	9	2D	2D	VBN
3335	224	10	and	and	CC
3335	224	11	3D	3d	RB
3335	224	12	Infor-	Infor-	NNP
3335	224	13	mation	mation	NN
3335	224	14	Visualization	Visualization	NNP
3335	224	15	Resources	Resources	NNP
3335	224	16	,	,	,
3335	224	17	Applications	Applications	NNPS
3335	224	18	,	,	,
3335	224	19	and	and	CC
3335	224	20	Future	future	NN
3335	224	21	,	,	,
3335	224	22	”	"	''
3335	224	23	Library	Library	NNP
3335	224	24	Technical	Technical	NNP
3335	224	25	Reports	Reports	NNPS
3335	224	26	41	41	CD
3335	224	27	,	,	,
3335	224	28	no	no	UH
3335	224	29	.	.	.
3335	225	1	1	1	CD
3335	225	2	(	(	-LRB-
3335	225	3	2005	2005	CD
3335	225	4	)	)	-RRB-
3335	225	5	.	.	.
3335	226	1	26	26	CD
3335	226	2	.	.	.
3335	227	1	E.	E.	NNP
3335	227	2	Bertini	Bertini	NNP
3335	227	3	et	et	FW
3335	227	4	al	al	NNP
3335	227	5	.	.	NNP
3335	227	6	,	,	,
3335	227	7	“	"	``
3335	227	8	Visualization	visualization	NN
3335	227	9	in	in	IN
3335	227	10	Digital	Digital	NNP
3335	227	11	Libraries	Libraries	NNP
3335	227	12	,	,	,
3335	227	13	”	"	''
3335	227	14	www	www	NNP
3335	227	15	.dis.uniromal.it/~delos	.dis.uniromal.it/~delos	NNP
3335	227	16	/	/	SYM
3335	227	17	docs	doc	NNS
3335	227	18	/	/	SYM
3335	227	19	ivdls_book_chapter.pdf	ivdls_book_chapter.pdf	NNP
3335	227	20	(	(	-LRB-
3335	227	21	accessed	access	VBN
3335	227	22	Jan.	January	NNP
3335	227	23	12	12	CD
3335	227	24	,	,	,
3335	227	25	2006	2006	CD
3335	227	26	)	)	-RRB-
3335	227	27	.	.	.