id	sid	tid	token	lemma	pos
j098z89304f	1	1	classification	classification	NOUN
j098z89304f	1	2	is	be	AUX
j098z89304f	1	3	one	one	NUM
j098z89304f	1	4	of	of	ADP
j098z89304f	1	5	the	the	DET
j098z89304f	1	6	most	most	ADV
j098z89304f	1	7	fundamental	fundamental	ADJ
j098z89304f	1	8	tasks	task	NOUN
j098z89304f	1	9	in	in	ADP
j098z89304f	1	10	the	the	DET
j098z89304f	1	11	machine	machine	NOUN
j098z89304f	1	12	learning	learning	NOUN
j098z89304f	1	13	and	and	CCONJ
j098z89304f	1	14	data	datum	NOUN
j098z89304f	1	15	mining	mining	NOUN
j098z89304f	1	16	communities	community	NOUN
j098z89304f	1	17	.	.	PUNCT
j098z89304f	2	1	one	one	NUM
j098z89304f	2	2	of	of	ADP
j098z89304f	2	3	the	the	DET
j098z89304f	2	4	most	most	ADV
j098z89304f	2	5	common	common	ADJ
j098z89304f	2	6	challenges	challenge	NOUN
j098z89304f	2	7	faced	face	VERB
j098z89304f	2	8	when	when	SCONJ
j098z89304f	2	9	trying	try	VERB
j098z89304f	2	10	to	to	PART
j098z89304f	2	11	perform	perform	VERB
j098z89304f	2	12	classification	classification	NOUN
j098z89304f	2	13	is	be	AUX
j098z89304f	2	14	the	the	DET
j098z89304f	2	15	class	class	NOUN
j098z89304f	2	16	imbalance	imbalance	NOUN
j098z89304f	2	17	problem	problem	NOUN
j098z89304f	2	18	.	.	PUNCT
j098z89304f	3	1	the	the	DET
j098z89304f	3	2	introduction	introduction	NOUN
j098z89304f	3	3	of	of	ADP
j098z89304f	3	4	class	class	NOUN
j098z89304f	3	5	imbalance	imbalance	NOUN
j098z89304f	3	6	into	into	ADP
j098z89304f	3	7	the	the	DET
j098z89304f	3	8	classification	classification	NOUN
j098z89304f	3	9	problem	problem	NOUN
j098z89304f	3	10	poses	pose	VERB
j098z89304f	3	11	serious	serious	ADJ
j098z89304f	3	12	and	and	CCONJ
j098z89304f	3	13	interesting	interesting	ADJ
j098z89304f	3	14	challenges	challenge	NOUN
j098z89304f	3	15	which	which	PRON
j098z89304f	3	16	must	must	AUX
j098z89304f	3	17	be	be	AUX
j098z89304f	3	18	met	meet	VERB
j098z89304f	3	19	in	in	ADP
j098z89304f	3	20	order	order	NOUN
j098z89304f	3	21	to	to	PART
j098z89304f	3	22	provide	provide	VERB
j098z89304f	3	23	knowledge	knowledge	NOUN
j098z89304f	3	24	.	.	PUNCT
j098z89304f	4	1	an	an	DET
j098z89304f	4	2	orthogonal	orthogonal	ADJ
j098z89304f	4	3	problem	problem	NOUN
j098z89304f	4	4	to	to	ADP
j098z89304f	4	5	class	class	NOUN
j098z89304f	4	6	imbalance	imbalance	NOUN
j098z89304f	4	7	arises	arise	VERB
j098z89304f	4	8	due	due	ADP
j098z89304f	4	9	to	to	ADP
j098z89304f	4	10	concept	concept	NOUN
j098z89304f	4	11	drift	drift	NOUN
j098z89304f	4	12	in	in	ADP
j098z89304f	4	13	data	data	NOUN
j098z89304f	4	14	streams	stream	NOUN
j098z89304f	4	15	.	.	PUNCT
j098z89304f	5	1	due	due	ADP
j098z89304f	5	2	to	to	ADP
j098z89304f	5	3	the	the	DET
j098z89304f	5	4	complexity	complexity	NOUN
j098z89304f	5	5	of	of	ADP
j098z89304f	5	6	each	each	PRON
j098z89304f	5	7	of	of	ADP
j098z89304f	5	8	the	the	DET
j098z89304f	5	9	issues	issue	NOUN
j098z89304f	5	10	---	---	PUNCT
j098z89304f	5	11	much	much	ADV
j098z89304f	5	12	less	less	ADJ
j098z89304f	5	13	both	both	PRON
j098z89304f	5	14	in	in	ADP
j098z89304f	5	15	tandem	tandem	PROPN
j098z89304f	5	16	---	---	PUNCT
j098z89304f	5	17	the	the	DET
j098z89304f	5	18	combination	combination	NOUN
j098z89304f	5	19	of	of	ADP
j098z89304f	5	20	class	class	NOUN
j098z89304f	5	21	imbalance	imbalance	NOUN
j098z89304f	5	22	and	and	CCONJ
j098z89304f	5	23	concept	concept	NOUN
j098z89304f	5	24	drift	drift	NOUN
j098z89304f	5	25	are	be	AUX
j098z89304f	5	26	very	very	ADV
j098z89304f	5	27	understudied.in	understudied.in	NUM
j098z89304f	5	28	this	this	DET
j098z89304f	5	29	dissertation	dissertation	NOUN
j098z89304f	6	1	we	we	PRON
j098z89304f	6	2	discuss	discuss	VERB
j098z89304f	6	3	classification	classification	NOUN
j098z89304f	6	4	in	in	ADP
j098z89304f	6	5	an	an	DET
j098z89304f	6	6	imbalanced	imbalanced	ADJ
j098z89304f	6	7	world	world	NOUN
j098z89304f	6	8	from	from	ADP
j098z89304f	6	9	a	a	DET
j098z89304f	6	10	variety	variety	NOUN
j098z89304f	6	11	of	of	ADP
j098z89304f	6	12	angles	angle	NOUN
j098z89304f	6	13	.	.	PUNCT
j098z89304f	7	1	first	first	ADV
j098z89304f	7	2	,	,	PUNCT
j098z89304f	7	3	we	we	PRON
j098z89304f	7	4	propose	propose	VERB
j098z89304f	7	5	methods	method	NOUN
j098z89304f	7	6	to	to	PART
j098z89304f	7	7	overcome	overcome	VERB
j098z89304f	7	8	class	class	NOUN
j098z89304f	7	9	imbalance	imbalance	NOUN
j098z89304f	7	10	in	in	ADP
j098z89304f	7	11	its	its	PRON
j098z89304f	7	12	simplest	simple	ADJ
j098z89304f	7	13	incarnation	incarnation	NOUN
j098z89304f	7	14	.	.	PUNCT
j098z89304f	8	1	in	in	ADP
j098z89304f	8	2	subsequent	subsequent	ADJ
j098z89304f	8	3	chapters	chapter	NOUN
j098z89304f	8	4	,	,	PUNCT
j098z89304f	8	5	we	we	PRON
j098z89304f	8	6	remove	remove	VERB
j098z89304f	8	7	restrictions	restriction	NOUN
j098z89304f	8	8	in	in	ADP
j098z89304f	8	9	order	order	NOUN
j098z89304f	8	10	to	to	PART
j098z89304f	8	11	provide	provide	VERB
j098z89304f	8	12	novel	novel	ADJ
j098z89304f	8	13	solutions	solution	NOUN
j098z89304f	8	14	and	and	CCONJ
j098z89304f	8	15	insights	insight	NOUN
j098z89304f	8	16	.	.	PUNCT
j098z89304f	9	1	by	by	ADP
j098z89304f	9	2	the	the	DET
j098z89304f	9	3	end	end	NOUN
j098z89304f	9	4	of	of	ADP
j098z89304f	9	5	this	this	DET
j098z89304f	9	6	dissertation	dissertation	NOUN
j098z89304f	9	7	,	,	PUNCT
j098z89304f	9	8	we	we	PRON
j098z89304f	9	9	will	will	AUX
j098z89304f	9	10	present	present	VERB
j098z89304f	9	11	a	a	DET
j098z89304f	9	12	wide	wide	ADJ
j098z89304f	9	13	variety	variety	NOUN
j098z89304f	9	14	of	of	ADP
j098z89304f	9	15	solutions	solution	NOUN
j098z89304f	9	16	to	to	ADP
j098z89304f	9	17	the	the	DET
j098z89304f	9	18	class	class	NOUN
j098z89304f	9	19	imbalance	imbalance	NOUN
j098z89304f	9	20	problem	problem	NOUN
j098z89304f	9	21	,	,	PUNCT
j098z89304f	9	22	including	include	VERB
j098z89304f	9	23	the	the	DET
j098z89304f	9	24	combination	combination	NOUN
j098z89304f	9	25	of	of	ADP
j098z89304f	9	26	class	class	NOUN
j098z89304f	9	27	imbalance	imbalance	NOUN
j098z89304f	9	28	and	and	CCONJ
j098z89304f	9	29	concept	concept	NOUN
j098z89304f	9	30	drift.before	drift.before	PROPN
j098z89304f	9	31	beginning	beginning	NOUN
j098z89304f	9	32	,	,	PUNCT
j098z89304f	9	33	however	however	ADV
j098z89304f	9	34	,	,	PUNCT
j098z89304f	9	35	we	we	PRON
j098z89304f	9	36	present	present	VERB
j098z89304f	9	37	intuitive	intuitive	ADJ
j098z89304f	9	38	(	(	PUNCT
j098z89304f	9	39	and	and	CCONJ
j098z89304f	9	40	mathematical	mathematical	PROPN
j098z89304f	9	41	)	)	PUNCT
j098z89304f	9	42	definitions	definition	NOUN
j098z89304f	9	43	of	of	ADP
j098z89304f	9	44	class	class	NOUN
j098z89304f	9	45	imbalance	imbalance	NOUN
j098z89304f	9	46	and	and	CCONJ
j098z89304f	9	47	concept	concept	NOUN
j098z89304f	9	48	drift	drift	NOUN
j098z89304f	9	49	,	,	PUNCT
j098z89304f	9	50	as	as	ADV
j098z89304f	9	51	well	well	ADV
j098z89304f	9	52	as	as	ADP
j098z89304f	9	53	an	an	DET
j098z89304f	9	54	overview	overview	NOUN
j098z89304f	9	55	of	of	ADP
j098z89304f	9	56	the	the	DET
j098z89304f	9	57	state	state	NOUN
j098z89304f	9	58	of	of	ADP
j098z89304f	9	59	the	the	DET
j098z89304f	9	60	art	art	NOUN
j098z89304f	9	61	methods	method	NOUN
j098z89304f	9	62	in	in	ADP
j098z89304f	9	63	each	each	DET
j098z89304f	9	64	community	community	NOUN
j098z89304f	9	65	.	.	PUNCT