id	sid	tid	token	lemma	pos
m039k358m2d	1	1	the	the	DET
m039k358m2d	1	2	2013	2013	NUM
m039k358m2d	1	3	boston	boston	PROPN
m039k358m2d	1	4	marathon	marathon	NOUN
m039k358m2d	1	5	investigation	investigation	NOUN
m039k358m2d	1	6	presented	present	VERB
m039k358m2d	1	7	an	an	DET
m039k358m2d	1	8	ample	ample	ADJ
m039k358m2d	1	9	opportunity	opportunity	NOUN
m039k358m2d	1	10	to	to	PART
m039k358m2d	1	11	apply	apply	VERB
m039k358m2d	1	12	advanced	advanced	ADJ
m039k358m2d	1	13	face	face	NOUN
m039k358m2d	1	14	recognition	recognition	NOUN
m039k358m2d	1	15	technology	technology	NOUN
m039k358m2d	1	16	.	.	PUNCT
m039k358m2d	2	1	unfortunately	unfortunately	ADV
m039k358m2d	2	2	,	,	PUNCT
m039k358m2d	2	3	the	the	DET
m039k358m2d	2	4	crowded	crowded	ADJ
m039k358m2d	2	5	scenes	scene	NOUN
m039k358m2d	2	6	proved	prove	VERB
m039k358m2d	2	7	too	too	ADV
m039k358m2d	2	8	difficult	difficult	ADJ
m039k358m2d	2	9	for	for	ADP
m039k358m2d	2	10	existing	exist	VERB
m039k358m2d	2	11	facial	facial	ADJ
m039k358m2d	2	12	biometrics	biometric	NOUN
m039k358m2d	2	13	methods	method	NOUN
m039k358m2d	2	14	and	and	CCONJ
m039k358m2d	2	15	databases	database	NOUN
m039k358m2d	2	16	.	.	PUNCT
m039k358m2d	3	1	in	in	ADP
m039k358m2d	3	2	this	this	DET
m039k358m2d	3	3	dissertation	dissertation	NOUN
m039k358m2d	3	4	,	,	PUNCT
m039k358m2d	3	5	we	we	PRON
m039k358m2d	3	6	identify	identify	VERB
m039k358m2d	3	7	some	some	PRON
m039k358m2d	3	8	of	of	ADP
m039k358m2d	3	9	the	the	DET
m039k358m2d	3	10	limitations	limitation	NOUN
m039k358m2d	3	11	of	of	ADP
m039k358m2d	3	12	this	this	DET
m039k358m2d	3	13	technology	technology	NOUN
m039k358m2d	3	14	and	and	CCONJ
m039k358m2d	3	15	present	present	ADJ
m039k358m2d	3	16	approaches	approach	NOUN
m039k358m2d	3	17	for	for	ADP
m039k358m2d	3	18	overcoming	overcome	VERB
m039k358m2d	3	19	these	these	DET
m039k358m2d	3	20	deficiencies	deficiency	NOUN
m039k358m2d	3	21	.	.	PUNCT
m039k358m2d	4	1	these	these	DET
m039k358m2d	4	2	approaches	approach	NOUN
m039k358m2d	4	3	underlie	underlie	VERB
m039k358m2d	4	4	a	a	DET
m039k358m2d	4	5	suite	suite	NOUN
m039k358m2d	4	6	of	of	ADP
m039k358m2d	4	7	novel	novel	ADJ
m039k358m2d	4	8	algorithms	algorithm	NOUN
m039k358m2d	4	9	for	for	ADP
m039k358m2d	4	10	detecting	detect	VERB
m039k358m2d	4	11	faces	face	NOUN
m039k358m2d	4	12	in	in	ADP
m039k358m2d	4	13	unconstrained	unconstrained	ADJ
m039k358m2d	4	14	imagery	imagery	NOUN
m039k358m2d	4	15	;	;	PUNCT
m039k358m2d	4	16	clustering	cluster	VERB
m039k358m2d	4	17	images	image	NOUN
m039k358m2d	4	18	of	of	ADP
m039k358m2d	4	19	faces	face	NOUN
m039k358m2d	4	20	into	into	ADP
m039k358m2d	4	21	identity	identity	NOUN
m039k358m2d	4	22	groups	group	NOUN
m039k358m2d	4	23	;	;	PUNCT
m039k358m2d	4	24	finding	find	VERB
m039k358m2d	4	25	people	people	NOUN
m039k358m2d	4	26	who	who	PRON
m039k358m2d	4	27	appear	appear	VERB
m039k358m2d	4	28	frequently	frequently	ADV
m039k358m2d	4	29	across	across	ADP
m039k358m2d	4	30	a	a	DET
m039k358m2d	4	31	collection	collection	NOUN
m039k358m2d	4	32	of	of	ADP
m039k358m2d	4	33	scenes	scene	NOUN
m039k358m2d	4	34	;	;	PUNCT
m039k358m2d	4	35	and	and	CCONJ
m039k358m2d	4	36	detecting	detect	VERB
m039k358m2d	4	37	groups	group	NOUN
m039k358m2d	4	38	of	of	ADP
m039k358m2d	4	39	individuals	individual	NOUN
m039k358m2d	4	40	who	who	PRON
m039k358m2d	4	41	often	often	ADV
m039k358m2d	4	42	appear	appear	VERB
m039k358m2d	4	43	together	together	ADV
m039k358m2d	4	44	.	.	PUNCT
m039k358m2d	5	1	face	face	NOUN
m039k358m2d	5	2	detection	detection	NOUN
m039k358m2d	5	3	typically	typically	ADV
m039k358m2d	5	4	serves	serve	VERB
m039k358m2d	5	5	as	as	ADP
m039k358m2d	5	6	the	the	DET
m039k358m2d	5	7	first	first	ADJ
m039k358m2d	5	8	step	step	NOUN
m039k358m2d	5	9	in	in	ADP
m039k358m2d	5	10	a	a	DET
m039k358m2d	5	11	facial	facial	ADJ
m039k358m2d	5	12	analysis	analysis	NOUN
m039k358m2d	5	13	pipeline	pipeline	NOUN
m039k358m2d	5	14	.	.	PUNCT
m039k358m2d	6	1	we	we	PRON
m039k358m2d	6	2	elucidate	elucidate	VERB
m039k358m2d	6	3	the	the	DET
m039k358m2d	6	4	difficulties	difficulty	NOUN
m039k358m2d	6	5	encountered	encounter	VERB
m039k358m2d	6	6	on	on	ADP
m039k358m2d	6	7	uncontrolled	uncontrolled	ADJ
m039k358m2d	6	8	imagery	imagery	NOUN
m039k358m2d	6	9	by	by	ADP
m039k358m2d	6	10	a	a	DET
m039k358m2d	6	11	simple	simple	ADJ
m039k358m2d	6	12	yet	yet	CCONJ
m039k358m2d	6	13	strong	strong	ADV
m039k358m2d	6	14	-	-	PUNCT
m039k358m2d	6	15	performing	perform	VERB
m039k358m2d	6	16	face	face	NOUN
m039k358m2d	6	17	detector	detector	NOUN
m039k358m2d	6	18	.	.	PUNCT
m039k358m2d	7	1	although	although	SCONJ
m039k358m2d	7	2	pose	pose	VERB
m039k358m2d	7	3	has	have	AUX
m039k358m2d	7	4	traditionally	traditionally	ADV
m039k358m2d	7	5	been	be	AUX
m039k358m2d	7	6	the	the	DET
m039k358m2d	7	7	focus	focus	NOUN
m039k358m2d	7	8	of	of	ADP
m039k358m2d	7	9	much	much	ADJ
m039k358m2d	7	10	of	of	ADP
m039k358m2d	7	11	the	the	DET
m039k358m2d	7	12	research	research	NOUN
m039k358m2d	7	13	on	on	ADP
m039k358m2d	7	14	face	face	NOUN
m039k358m2d	7	15	detection	detection	NOUN
m039k358m2d	7	16	,	,	PUNCT
m039k358m2d	7	17	we	we	PRON
m039k358m2d	7	18	show	show	VERB
m039k358m2d	7	19	that	that	SCONJ
m039k358m2d	7	20	occlusion	occlusion	NOUN
m039k358m2d	7	21	and	and	CCONJ
m039k358m2d	7	22	blur	blur	NOUN
m039k358m2d	7	23	have	have	VERB
m039k358m2d	7	24	at	at	ADV
m039k358m2d	7	25	least	least	ADJ
m039k358m2d	7	26	as	as	ADV
m039k358m2d	7	27	significant	significant	ADJ
m039k358m2d	7	28	of	of	ADP
m039k358m2d	7	29	an	an	DET
m039k358m2d	7	30	impact	impact	NOUN
m039k358m2d	7	31	for	for	ADP
m039k358m2d	7	32	data	datum	NOUN
m039k358m2d	7	33	collected	collect	VERB
m039k358m2d	7	34	from	from	ADP
m039k358m2d	7	35	natural	natural	ADJ
m039k358m2d	7	36	scenes	scene	NOUN
m039k358m2d	7	37	.	.	PUNCT
m039k358m2d	8	1	the	the	DET
m039k358m2d	8	2	results	result	NOUN
m039k358m2d	8	3	also	also	ADV
m039k358m2d	8	4	indicate	indicate	VERB
m039k358m2d	8	5	that	that	SCONJ
m039k358m2d	8	6	classifiers	classifier	NOUN
m039k358m2d	8	7	with	with	ADP
m039k358m2d	8	8	distinct	distinct	ADJ
m039k358m2d	8	9	error	error	NOUN
m039k358m2d	8	10	modes	mode	NOUN
m039k358m2d	8	11	can	can	AUX
m039k358m2d	8	12	result	result	VERB
m039k358m2d	8	13	from	from	ADP
m039k358m2d	8	14	blur	blur	ADJ
m039k358m2d	8	15	-	-	PUNCT
m039k358m2d	8	16	based	base	VERB
m039k358m2d	8	17	perturbations	perturbation	NOUN
m039k358m2d	8	18	of	of	ADP
m039k358m2d	8	19	a	a	DET
m039k358m2d	8	20	detector	detector	NOUN
m039k358m2d	8	21	training	training	NOUN
m039k358m2d	8	22	set	set	NOUN
m039k358m2d	8	23	,	,	PUNCT
m039k358m2d	8	24	enabling	enable	VERB
m039k358m2d	8	25	the	the	DET
m039k358m2d	8	26	successful	successful	ADJ
m039k358m2d	8	27	application	application	NOUN
m039k358m2d	8	28	of	of	ADP
m039k358m2d	8	29	fusion	fusion	NOUN
m039k358m2d	8	30	techniques	technique	NOUN
m039k358m2d	8	31	.	.	PUNCT
m039k358m2d	9	1	identity	identity	NOUN
m039k358m2d	9	2	clustering	clustering	NOUN
m039k358m2d	9	3	plays	play	VERB
m039k358m2d	9	4	a	a	DET
m039k358m2d	9	5	similar	similar	ADJ
m039k358m2d	9	6	role	role	NOUN
m039k358m2d	9	7	to	to	PART
m039k358m2d	9	8	face	face	VERB
m039k358m2d	9	9	detection	detection	NOUN
m039k358m2d	9	10	insofar	insofar	ADV
m039k358m2d	9	11	as	as	SCONJ
m039k358m2d	9	12	it	it	PRON
m039k358m2d	9	13	can	can	AUX
m039k358m2d	9	14	drive	drive	VERB
m039k358m2d	9	15	automatic	automatic	ADJ
m039k358m2d	9	16	'	'	PUNCT
m039k358m2d	9	17	pattern	pattern	NOUN
m039k358m2d	9	18	of	of	ADP
m039k358m2d	9	19	life	life	NOUN
m039k358m2d	9	20	'	'	PART
m039k358m2d	9	21	analyses	analysis	NOUN
m039k358m2d	9	22	.	.	PUNCT
m039k358m2d	10	1	we	we	PRON
m039k358m2d	10	2	introduce	introduce	VERB
m039k358m2d	10	3	an	an	DET
m039k358m2d	10	4	active	active	ADJ
m039k358m2d	10	5	clustering	clustering	NOUN
m039k358m2d	10	6	scheme	scheme	NOUN
m039k358m2d	10	7	,	,	PUNCT
m039k358m2d	10	8	the	the	DET
m039k358m2d	10	9	framework	framework	NOUN
m039k358m2d	10	10	for	for	ADP
m039k358m2d	10	11	active	active	ADJ
m039k358m2d	10	12	clustering	clustering	NOUN
m039k358m2d	10	13	with	with	ADP
m039k358m2d	10	14	ensembles	ensemble	NOUN
m039k358m2d	10	15	(	(	PUNCT
m039k358m2d	10	16	face	face	NOUN
m039k358m2d	10	17	)	)	PUNCT
m039k358m2d	10	18	,	,	PUNCT
m039k358m2d	10	19	with	with	ADP
m039k358m2d	10	20	an	an	DET
m039k358m2d	10	21	emphasis	emphasis	NOUN
m039k358m2d	10	22	on	on	ADP
m039k358m2d	10	23	clustering	clustering	NOUN
m039k358m2d	10	24	face	face	NOUN
m039k358m2d	10	25	images	image	NOUN
m039k358m2d	10	26	.	.	PUNCT
m039k358m2d	11	1	face	face	NOUN
m039k358m2d	11	2	forms	form	VERB
m039k358m2d	11	3	high	high	ADJ
m039k358m2d	11	4	-	-	PUNCT
m039k358m2d	11	5	fidelity	fidelity	NOUN
m039k358m2d	11	6	identity	identity	NOUN
m039k358m2d	11	7	clusters	cluster	NOUN
m039k358m2d	11	8	by	by	ADP
m039k358m2d	11	9	integrating	integrate	VERB
m039k358m2d	11	10	a	a	DET
m039k358m2d	11	11	minimal	minimal	ADJ
m039k358m2d	11	12	amount	amount	NOUN
m039k358m2d	11	13	of	of	ADP
m039k358m2d	11	14	human	human	ADJ
m039k358m2d	11	15	feedback	feedback	NOUN
m039k358m2d	11	16	with	with	ADP
m039k358m2d	11	17	automatic	automatic	ADJ
m039k358m2d	11	18	face	face	NOUN
m039k358m2d	11	19	recognition	recognition	NOUN
m039k358m2d	11	20	results	result	NOUN
m039k358m2d	11	21	.	.	PUNCT
m039k358m2d	12	1	recognition	recognition	NOUN
m039k358m2d	12	2	errors	error	NOUN
m039k358m2d	12	3	are	be	AUX
m039k358m2d	12	4	mitigated	mitigate	VERB
m039k358m2d	12	5	through	through	ADP
m039k358m2d	12	6	the	the	DET
m039k358m2d	12	7	solicitation	solicitation	NOUN
m039k358m2d	12	8	of	of	ADP
m039k358m2d	12	9	human	human	ADJ
m039k358m2d	12	10	decisions	decision	NOUN
m039k358m2d	12	11	regarding	regard	VERB
m039k358m2d	12	12	ambiguously	ambiguously	ADV
m039k358m2d	12	13	matched	match	VERB
m039k358m2d	12	14	faces	face	NOUN
m039k358m2d	12	15	.	.	PUNCT
m039k358m2d	13	1	this	this	DET
m039k358m2d	13	2	scheme	scheme	NOUN
m039k358m2d	13	3	precludes	preclude	VERB
m039k358m2d	13	4	the	the	DET
m039k358m2d	13	5	need	need	NOUN
m039k358m2d	13	6	for	for	ADP
m039k358m2d	13	7	a	a	DET
m039k358m2d	13	8	pre	pre	ADJ
m039k358m2d	13	9	-	-	ADJ
m039k358m2d	13	10	existing	exist	VERB
m039k358m2d	13	11	gallery	gallery	NOUN
m039k358m2d	13	12	or	or	CCONJ
m039k358m2d	13	13	database	database	NOUN
m039k358m2d	13	14	of	of	ADP
m039k358m2d	13	15	known	know	VERB
m039k358m2d	13	16	identities	identity	NOUN
m039k358m2d	13	17	,	,	PUNCT
m039k358m2d	13	18	since	since	SCONJ
m039k358m2d	13	19	the	the	DET
m039k358m2d	13	20	gallery	gallery	NOUN
m039k358m2d	13	21	is	be	AUX
m039k358m2d	13	22	essentially	essentially	ADV
m039k358m2d	13	23	defined	define	VERB
m039k358m2d	13	24	by	by	ADP
m039k358m2d	13	25	the	the	DET
m039k358m2d	13	26	results	result	NOUN
m039k358m2d	13	27	of	of	ADP
m039k358m2d	13	28	the	the	DET
m039k358m2d	13	29	clustering	clustering	NOUN
m039k358m2d	13	30	.	.	PUNCT
m039k358m2d	14	1	our	our	PRON
m039k358m2d	14	2	experiments	experiment	NOUN
m039k358m2d	14	3	show	show	VERB
m039k358m2d	14	4	that	that	SCONJ
m039k358m2d	14	5	the	the	DET
m039k358m2d	14	6	face	face	NOUN
m039k358m2d	14	7	algorithm	algorithm	PROPN
m039k358m2d	14	8	is	be	AUX
m039k358m2d	14	9	more	more	ADV
m039k358m2d	14	10	accurate	accurate	ADJ
m039k358m2d	14	11	and	and	CCONJ
m039k358m2d	14	12	parsimonious	parsimonious	ADJ
m039k358m2d	14	13	than	than	ADP
m039k358m2d	14	14	the	the	DET
m039k358m2d	14	15	state	state	NOUN
m039k358m2d	14	16	-	-	PUNCT
m039k358m2d	14	17	of	of	ADP
m039k358m2d	14	18	-	-	PUNCT
m039k358m2d	14	19	the	the	DET
m039k358m2d	14	20	-	-	PUNCT
m039k358m2d	14	21	art	art	NOUN
m039k358m2d	14	22	in	in	ADP
m039k358m2d	14	23	active	active	ADJ
m039k358m2d	14	24	clustering	clustering	NOUN
m039k358m2d	14	25	,	,	PUNCT
m039k358m2d	14	26	regardless	regardless	ADV
m039k358m2d	14	27	of	of	ADP
m039k358m2d	14	28	whether	whether	SCONJ
m039k358m2d	14	29	the	the	DET
m039k358m2d	14	30	human	human	ADJ
m039k358m2d	14	31	feedback	feedback	NOUN
m039k358m2d	14	32	is	be	AUX
m039k358m2d	14	33	noisy	noisy	ADJ
m039k358m2d	14	34	.	.	PUNCT
m039k358m2d	15	1	at	at	ADP
m039k358m2d	15	2	the	the	DET
m039k358m2d	15	3	same	same	ADJ
m039k358m2d	15	4	time	time	NOUN
m039k358m2d	15	5	,	,	PUNCT
m039k358m2d	15	6	the	the	DET
m039k358m2d	15	7	face	face	NOUN
m039k358m2d	15	8	algorithm	algorithm	PROPN
m039k358m2d	15	9	promotes	promote	VERB
m039k358m2d	15	10	high	high	ADJ
m039k358m2d	15	11	performance	performance	NOUN
m039k358m2d	15	12	in	in	ADP
m039k358m2d	15	13	appearance	appearance	NOUN
m039k358m2d	15	14	frequency	frequency	NOUN
m039k358m2d	15	15	and	and	CCONJ
m039k358m2d	15	16	affiliation	affiliation	NOUN
m039k358m2d	15	17	analyses	analysis	NOUN
m039k358m2d	15	18	.	.	PUNCT
m039k358m2d	16	1	these	these	DET
m039k358m2d	16	2	performance	performance	NOUN
m039k358m2d	16	3	trends	trend	NOUN
m039k358m2d	16	4	illustrate	illustrate	VERB
m039k358m2d	16	5	the	the	DET
m039k358m2d	16	6	potential	potential	ADJ
m039k358m2d	16	7	efficacy	efficacy	NOUN
m039k358m2d	16	8	of	of	ADP
m039k358m2d	16	9	the	the	DET
m039k358m2d	16	10	proposed	propose	VERB
m039k358m2d	16	11	suite	suite	NOUN
m039k358m2d	16	12	of	of	ADP
m039k358m2d	16	13	algorithms	algorithm	NOUN
m039k358m2d	16	14	in	in	ADP
m039k358m2d	16	15	aiding	aid	VERB
m039k358m2d	16	16	data	datum	NOUN
m039k358m2d	16	17	mining	mining	NOUN
m039k358m2d	16	18	efforts	effort	NOUN
m039k358m2d	16	19	encountered	encounter	VERB
m039k358m2d	16	20	by	by	ADP
m039k358m2d	16	21	the	the	DET
m039k358m2d	16	22	counter	counter	NOUN
m039k358m2d	16	23	-	-	NOUN
m039k358m2d	16	24	terrorism	terrorism	NOUN
m039k358m2d	16	25	and	and	CCONJ
m039k358m2d	16	26	law	law	NOUN
m039k358m2d	16	27	enforcement	enforcement	NOUN
m039k358m2d	16	28	communities	community	NOUN
m039k358m2d	16	29	.	.	PUNCT