id	sid	tid	token	lemma	pos
6395w66659h	1	1	software	software	NOUN
6395w66659h	1	2	traceability	traceability	NOUN
6395w66659h	1	3	establishes	establish	VERB
6395w66659h	1	4	associations	association	NOUN
6395w66659h	1	5	between	between	ADP
6395w66659h	1	6	diverse	diverse	ADJ
6395w66659h	1	7	software	software	NOUN
6395w66659h	1	8	artifacts	artifact	NOUN
6395w66659h	1	9	such	such	ADJ
6395w66659h	1	10	as	as	ADP
6395w66659h	1	11	requirements	requirement	NOUN
6395w66659h	1	12	,	,	PUNCT
6395w66659h	1	13	design	design	NOUN
6395w66659h	1	14	,	,	PUNCT
6395w66659h	1	15	code	code	NOUN
6395w66659h	1	16	,	,	PUNCT
6395w66659h	1	17	and	and	CCONJ
6395w66659h	1	18	test	test	NOUN
6395w66659h	1	19	cases	case	NOUN
6395w66659h	1	20	.	.	PUNCT
6395w66659h	2	1	due	due	ADP
6395w66659h	2	2	to	to	ADP
6395w66659h	2	3	the	the	DET
6395w66659h	2	4	non	non	ADJ
6395w66659h	2	5	-	-	ADJ
6395w66659h	2	6	trivial	trivial	ADJ
6395w66659h	2	7	cost	cost	NOUN
6395w66659h	2	8	of	of	ADP
6395w66659h	2	9	manually	manually	ADV
6395w66659h	2	10	creating	create	VERB
6395w66659h	2	11	and	and	CCONJ
6395w66659h	2	12	maintaining	maintain	VERB
6395w66659h	2	13	links	link	NOUN
6395w66659h	2	14	,	,	PUNCT
6395w66659h	2	15	many	many	ADJ
6395w66659h	2	16	researchers	researcher	NOUN
6395w66659h	2	17	have	have	AUX
6395w66659h	2	18	proposed	propose	VERB
6395w66659h	2	19	automated	automate	VERB
6395w66659h	2	20	approaches	approach	NOUN
6395w66659h	2	21	to	to	PART
6395w66659h	2	22	recover	recover	VERB
6395w66659h	2	23	the	the	DET
6395w66659h	2	24	underlying	underlie	VERB
6395w66659h	2	25	links	link	NOUN
6395w66659h	2	26	.	.	PUNCT
6395w66659h	3	1	the	the	DET
6395w66659h	3	2	challenge	challenge	NOUN
6395w66659h	3	3	of	of	ADP
6395w66659h	3	4	achieving	achieve	VERB
6395w66659h	3	5	precise	precise	ADJ
6395w66659h	3	6	,	,	PUNCT
6395w66659h	3	7	complete	complete	ADJ
6395w66659h	3	8	and	and	CCONJ
6395w66659h	3	9	trustworthy	trustworthy	ADJ
6395w66659h	3	10	traceability	traceability	NOUN
6395w66659h	3	11	has	have	AUX
6395w66659h	3	12	been	be	AUX
6395w66659h	3	13	extensively	extensively	ADV
6395w66659h	3	14	investigated	investigate	VERB
6395w66659h	3	15	and	and	CCONJ
6395w66659h	3	16	discussed	discuss	VERB
6395w66659h	3	17	by	by	ADP
6395w66659h	3	18	researchers	researcher	NOUN
6395w66659h	3	19	in	in	ADP
6395w66659h	3	20	the	the	DET
6395w66659h	3	21	traceability	traceability	NOUN
6395w66659h	3	22	community	community	NOUN
6395w66659h	3	23	.	.	PUNCT
6395w66659h	4	1	as	as	ADP
6395w66659h	4	2	a	a	DET
6395w66659h	4	3	result	result	NOUN
6395w66659h	4	4	,	,	PUNCT
6395w66659h	4	5	various	various	ADJ
6395w66659h	4	6	approaches	approach	NOUN
6395w66659h	4	7	built	build	VERB
6395w66659h	4	8	upon	upon	SCONJ
6395w66659h	4	9	information	information	NOUN
6395w66659h	4	10	retrieval	retrieval	NOUN
6395w66659h	4	11	,	,	PUNCT
6395w66659h	4	12	machine	machine	NOUN
6395w66659h	4	13	learning	learning	NOUN
6395w66659h	4	14	and	and	CCONJ
6395w66659h	4	15	deep	deep	ADJ
6395w66659h	4	16	learning	learning	NOUN
6395w66659h	4	17	have	have	AUX
6395w66659h	4	18	been	be	AUX
6395w66659h	4	19	proposed	propose	VERB
6395w66659h	4	20	.	.	PUNCT
6395w66659h	5	1	however	however	ADV
6395w66659h	5	2	,	,	PUNCT
6395w66659h	5	3	while	while	SCONJ
6395w66659h	5	4	most	most	ADJ
6395w66659h	5	5	of	of	ADP
6395w66659h	5	6	these	these	DET
6395w66659h	5	7	methods	method	NOUN
6395w66659h	5	8	focus	focus	VERB
6395w66659h	5	9	on	on	ADP
6395w66659h	5	10	mining	mine	VERB
6395w66659h	5	11	statistical	statistical	ADJ
6395w66659h	5	12	features	feature	NOUN
6395w66659h	5	13	from	from	ADP
6395w66659h	5	14	the	the	DET
6395w66659h	5	15	artifacts	artifact	NOUN
6395w66659h	5	16	,	,	PUNCT
6395w66659h	5	17	few	few	ADJ
6395w66659h	5	18	studies	study	NOUN
6395w66659h	5	19	have	have	AUX
6395w66659h	5	20	been	be	AUX
6395w66659h	5	21	conducted	conduct	VERB
6395w66659h	5	22	to	to	PART
6395w66659h	5	23	incorporate	incorporate	VERB
6395w66659h	5	24	semantics	semantic	NOUN
6395w66659h	5	25	into	into	ADP
6395w66659h	5	26	automated	automate	VERB
6395w66659h	5	27	traceability	traceability	NOUN
6395w66659h	5	28	models.the	models.the	DET
6395w66659h	5	29	objective	objective	NOUN
6395w66659h	5	30	and	and	CCONJ
6395w66659h	5	31	contribution	contribution	NOUN
6395w66659h	5	32	of	of	ADP
6395w66659h	5	33	our	our	PRON
6395w66659h	5	34	study	study	NOUN
6395w66659h	5	35	focuses	focus	VERB
6395w66659h	5	36	on	on	ADP
6395w66659h	5	37	two	two	NUM
6395w66659h	5	38	important	important	ADJ
6395w66659h	5	39	aspects	aspect	NOUN
6395w66659h	5	40	.	.	PUNCT
6395w66659h	6	1	firstly	firstly	ADV
6395w66659h	6	2	,	,	PUNCT
6395w66659h	6	3	we	we	PRON
6395w66659h	6	4	expect	expect	VERB
6395w66659h	6	5	to	to	PART
6395w66659h	6	6	deliver	deliver	VERB
6395w66659h	6	7	higher	high	ADJ
6395w66659h	6	8	quality	quality	NOUN
6395w66659h	6	9	trace	trace	NOUN
6395w66659h	6	10	links	link	NOUN
6395w66659h	6	11	by	by	ADP
6395w66659h	6	12	bridging	bridge	VERB
6395w66659h	6	13	the	the	DET
6395w66659h	6	14	semantic	semantic	ADJ
6395w66659h	6	15	gap	gap	NOUN
6395w66659h	6	16	during	during	ADP
6395w66659h	6	17	link	link	NOUN
6395w66659h	6	18	generation	generation	NOUN
6395w66659h	6	19	procedures	procedure	NOUN
6395w66659h	6	20	.	.	PUNCT
6395w66659h	7	1	secondly	secondly	ADV
6395w66659h	7	2	,	,	PUNCT
6395w66659h	7	3	we	we	PRON
6395w66659h	7	4	establish	establish	VERB
6395w66659h	7	5	an	an	DET
6395w66659h	7	6	explainable	explainable	ADJ
6395w66659h	7	7	trace	trace	NOUN
6395w66659h	7	8	model	model	NOUN
6395w66659h	7	9	where	where	SCONJ
6395w66659h	7	10	the	the	DET
6395w66659h	7	11	rationale	rationale	NOUN
6395w66659h	7	12	of	of	ADP
6395w66659h	7	13	accepting	accept	VERB
6395w66659h	7	14	and	and	CCONJ
6395w66659h	7	15	denying	deny	VERB
6395w66659h	7	16	a	a	DET
6395w66659h	7	17	candidate	candidate	NOUN
6395w66659h	7	18	link	link	NOUN
6395w66659h	7	19	within	within	ADP
6395w66659h	7	20	the	the	DET
6395w66659h	7	21	trace	trace	NOUN
6395w66659h	7	22	model	model	NOUN
6395w66659h	7	23	,	,	PUNCT
6395w66659h	7	24	can	can	AUX
6395w66659h	7	25	be	be	AUX
6395w66659h	7	26	directly	directly	ADV
6395w66659h	7	27	visualized	visualize	VERB
6395w66659h	7	28	in	in	ADP
6395w66659h	7	29	order	order	NOUN
6395w66659h	7	30	to	to	PART
6395w66659h	7	31	increase	increase	VERB
6395w66659h	7	32	human	human	ADJ
6395w66659h	7	33	comprehension.in	comprehension.in	NUM
6395w66659h	7	34	this	this	DET
6395w66659h	7	35	dissertation	dissertation	NOUN
6395w66659h	7	36	,	,	PUNCT
6395w66659h	7	37	we	we	PRON
6395w66659h	7	38	therefore	therefore	ADV
6395w66659h	7	39	explored	explore	VERB
6395w66659h	7	40	the	the	DET
6395w66659h	7	41	possibility	possibility	NOUN
6395w66659h	7	42	of	of	ADP
6395w66659h	7	43	combining	combine	VERB
6395w66659h	7	44	conventional	conventional	ADJ
6395w66659h	7	45	traceability	traceability	NOUN
6395w66659h	7	46	techniques	technique	NOUN
6395w66659h	7	47	with	with	ADP
6395w66659h	7	48	cutting	cut	VERB
6395w66659h	7	49	edge	edge	NOUN
6395w66659h	7	50	automated	automate	VERB
6395w66659h	7	51	concept	concept	NOUN
6395w66659h	7	52	model	model	NOUN
6395w66659h	7	53	construction	construction	NOUN
6395w66659h	7	54	techniques	technique	NOUN
6395w66659h	7	55	to	to	PART
6395w66659h	7	56	create	create	VERB
6395w66659h	7	57	semantically	semantically	ADV
6395w66659h	7	58	enhanced	enhance	VERB
6395w66659h	7	59	traceability	traceability	NOUN
6395w66659h	7	60	.	.	PUNCT
6395w66659h	8	1	in	in	ADP
6395w66659h	8	2	our	our	PRON
6395w66659h	8	3	methods	method	NOUN
6395w66659h	8	4	,	,	PUNCT
6395w66659h	8	5	we	we	PRON
6395w66659h	8	6	constructed	construct	VERB
6395w66659h	8	7	concept	concept	NOUN
6395w66659h	8	8	models	model	NOUN
6395w66659h	8	9	using	use	VERB
6395w66659h	8	10	unsupervised	unsupervised	ADJ
6395w66659h	8	11	learning	learning	NOUN
6395w66659h	8	12	and	and	CCONJ
6395w66659h	8	13	text	text	NOUN
6395w66659h	8	14	mining	mining	NOUN
6395w66659h	8	15	to	to	PART
6395w66659h	8	16	extract	extract	VERB
6395w66659h	8	17	semantic	semantic	ADJ
6395w66659h	8	18	knowledge	knowledge	NOUN
6395w66659h	8	19	from	from	ADP
6395w66659h	8	20	a	a	DET
6395w66659h	8	21	domain	domain	NOUN
6395w66659h	8	22	corpus	corpus	NOUN
6395w66659h	8	23	.	.	PUNCT
6395w66659h	9	1	the	the	DET
6395w66659h	9	2	established	establish	VERB
6395w66659h	9	3	concept	concept	NOUN
6395w66659h	9	4	models	model	NOUN
6395w66659h	9	5	were	be	AUX
6395w66659h	9	6	leveraged	leverage	VERB
6395w66659h	9	7	by	by	ADP
6395w66659h	9	8	the	the	DET
6395w66659h	9	9	trace	trace	NOUN
6395w66659h	9	10	model	model	NOUN
6395w66659h	9	11	as	as	ADP
6395w66659h	9	12	an	an	DET
6395w66659h	9	13	external	external	ADJ
6395w66659h	9	14	knowledge	knowledge	NOUN
6395w66659h	9	15	base	base	NOUN
6395w66659h	9	16	to	to	PART
6395w66659h	9	17	analyse	analyse	VERB
6395w66659h	9	18	the	the	DET
6395w66659h	9	19	semantic	semantic	ADJ
6395w66659h	9	20	relevance	relevance	NOUN
6395w66659h	9	21	among	among	ADP
6395w66659h	9	22	software	software	NOUN
6395w66659h	9	23	artifacts	artifact	NOUN
6395w66659h	9	24	.	.	PUNCT
6395w66659h	10	1	we	we	PRON
6395w66659h	10	2	adopted	adopt	VERB
6395w66659h	10	3	this	this	DET
6395w66659h	10	4	method	method	NOUN
6395w66659h	10	5	to	to	PART
6395w66659h	10	6	address	address	VERB
6395w66659h	10	7	two	two	NUM
6395w66659h	10	8	open	open	ADJ
6395w66659h	10	9	challenges	challenge	NOUN
6395w66659h	10	10	of	of	ADP
6395w66659h	10	11	generating	generate	VERB
6395w66659h	10	12	trace	trace	NOUN
6395w66659h	10	13	links	link	NOUN
6395w66659h	10	14	in	in	ADP
6395w66659h	10	15	bilingual	bilingual	ADJ
6395w66659h	10	16	project	project	NOUN
6395w66659h	10	17	environments	environment	NOUN
6395w66659h	10	18	and	and	CCONJ
6395w66659h	10	19	supporting	support	VERB
6395w66659h	10	20	domain	domain	NOUN
6395w66659h	10	21	-	-	PUNCT
6395w66659h	10	22	specific	specific	ADJ
6395w66659h	10	23	traceability	traceability	NOUN
6395w66659h	10	24	.	.	PUNCT
6395w66659h	11	1	to	to	PART
6395w66659h	11	2	approach	approach	VERB
6395w66659h	11	3	our	our	PRON
6395w66659h	11	4	second	second	ADJ
6395w66659h	11	5	goal	goal	NOUN
6395w66659h	11	6	,	,	PUNCT
6395w66659h	11	7	we	we	PRON
6395w66659h	11	8	adopted	adopt	VERB
6395w66659h	11	9	data	data	NOUN
6395w66659h	11	10	mining	mining	NOUN
6395w66659h	11	11	and	and	CCONJ
6395w66659h	11	12	natural	natural	ADJ
6395w66659h	11	13	language	language	NOUN
6395w66659h	11	14	processing	processing	NOUN
6395w66659h	11	15	techniques	technique	NOUN
6395w66659h	11	16	to	to	PART
6395w66659h	11	17	build	build	VERB
6395w66659h	11	18	a	a	DET
6395w66659h	11	19	fully	fully	ADV
6395w66659h	11	20	automated	automate	VERB
6395w66659h	11	21	pipeline	pipeline	NOUN
6395w66659h	11	22	to	to	PART
6395w66659h	11	23	construct	construct	VERB
6395w66659h	11	24	a	a	DET
6395w66659h	11	25	knowledge	knowledge	NOUN
6395w66659h	11	26	base	base	NOUN
6395w66659h	11	27	that	that	PRON
6395w66659h	11	28	could	could	AUX
6395w66659h	11	29	be	be	AUX
6395w66659h	11	30	used	use	VERB
6395w66659h	11	31	to	to	PART
6395w66659h	11	32	generate	generate	VERB
6395w66659h	11	33	trace	trace	NOUN
6395w66659h	11	34	link	link	NOUN
6395w66659h	11	35	rationales	rationale	NOUN
6395w66659h	11	36	.	.	PUNCT
6395w66659h	12	1	we	we	PRON
6395w66659h	12	2	integrated	integrate	VERB
6395w66659h	12	3	the	the	DET
6395w66659h	12	4	concept	concept	NOUN
6395w66659h	12	5	model	model	NOUN
6395w66659h	12	6	into	into	ADP
6395w66659h	12	7	our	our	PRON
6395w66659h	12	8	visualization	visualization	NOUN
6395w66659h	12	9	tool	tool	NOUN
6395w66659h	12	10	in	in	ADP
6395w66659h	12	11	order	order	NOUN
6395w66659h	12	12	to	to	PART
6395w66659h	12	13	highlight	highlight	VERB
6395w66659h	12	14	related	related	ADJ
6395w66659h	12	15	concepts	concept	NOUN
6395w66659h	12	16	in	in	ADP
6395w66659h	12	17	source	source	NOUN
6395w66659h	12	18	and	and	CCONJ
6395w66659h	12	19	target	target	NOUN
6395w66659h	12	20	artifacts	artifact	NOUN
6395w66659h	12	21	.	.	PUNCT
6395w66659h	13	1	we	we	PRON
6395w66659h	13	2	then	then	ADV
6395w66659h	13	3	used	use	VERB
6395w66659h	13	4	this	this	DET
6395w66659h	13	5	tool	tool	NOUN
6395w66659h	13	6	to	to	PART
6395w66659h	13	7	explain	explain	VERB
6395w66659h	13	8	why	why	SCONJ
6395w66659h	13	9	two	two	NUM
6395w66659h	13	10	specific	specific	ADJ
6395w66659h	13	11	artifacts	artifact	NOUN
6395w66659h	13	12	were	be	AUX
6395w66659h	13	13	linked	link	VERB
6395w66659h	13	14	together	together	ADV
6395w66659h	13	15	as	as	ADP
6395w66659h	13	16	a	a	DET
6395w66659h	13	17	result	result	NOUN
6395w66659h	13	18	of	of	ADP
6395w66659h	13	19	a	a	DET
6395w66659h	13	20	trace	trace	NOUN
6395w66659h	13	21	query	query	NOUN
6395w66659h	13	22	.	.	PUNCT
6395w66659h	14	1	we	we	PRON
6395w66659h	14	2	quantitatively	quantitatively	ADV
6395w66659h	14	3	evaluated	evaluate	VERB
6395w66659h	14	4	our	our	PRON
6395w66659h	14	5	approach	approach	NOUN
6395w66659h	14	6	using	use	VERB
6395w66659h	14	7	project	project	NOUN
6395w66659h	14	8	artifacts	artifact	NOUN
6395w66659h	14	9	from	from	ADP
6395w66659h	14	10	three	three	NUM
6395w66659h	14	11	different	different	ADJ
6395w66659h	14	12	domains	domain	NOUN
6395w66659h	14	13	by	by	ADP
6395w66659h	14	14	reporting	report	VERB
6395w66659h	14	15	coverage	coverage	NOUN
6395w66659h	14	16	,	,	PUNCT
6395w66659h	14	17	correctness	correctness	NOUN
6395w66659h	14	18	,	,	PUNCT
6395w66659h	14	19	and	and	CCONJ
6395w66659h	14	20	potential	potential	ADJ
6395w66659h	14	21	utility	utility	NOUN
6395w66659h	14	22	of	of	ADP
6395w66659h	14	23	the	the	DET
6395w66659h	14	24	generated	generate	VERB
6395w66659h	14	25	definitions	definition	NOUN
6395w66659h	14	26	.	.	PUNCT
6395w66659h	15	1	then	then	ADV
6395w66659h	15	2	from	from	ADP
6395w66659h	15	3	a	a	DET
6395w66659h	15	4	quality	quality	NOUN
6395w66659h	15	5	perspective	perspective	NOUN
6395w66659h	15	6	,	,	PUNCT
6395w66659h	15	7	we	we	PRON
6395w66659h	15	8	report	report	VERB
6395w66659h	15	9	results	result	NOUN
6395w66659h	15	10	from	from	ADP
6395w66659h	15	11	a	a	DET
6395w66659h	15	12	user	user	NOUN
6395w66659h	15	13	study	study	NOUN
6395w66659h	15	14	that	that	PRON
6395w66659h	15	15	was	be	AUX
6395w66659h	15	16	conducted	conduct	VERB
6395w66659h	15	17	to	to	PART
6395w66659h	15	18	evaluate	evaluate	VERB
6395w66659h	15	19	the	the	DET
6395w66659h	15	20	effectiveness	effectiveness	NOUN
6395w66659h	15	21	of	of	ADP
6395w66659h	15	22	the	the	DET
6395w66659h	15	23	explanation	explanation	NOUN
6395w66659h	15	24	interface	interface	NOUN
6395w66659h	15	25	.	.	PUNCT
6395w66659h	16	1	results	result	NOUN
6395w66659h	16	2	showed	show	VERB
6395w66659h	16	3	that	that	SCONJ
6395w66659h	16	4	the	the	DET
6395w66659h	16	5	explanations	explanation	NOUN
6395w66659h	16	6	presented	present	VERB
6395w66659h	16	7	in	in	ADP
6395w66659h	16	8	the	the	DET
6395w66659h	16	9	interface	interface	NOUN
6395w66659h	16	10	helped	help	VERB
6395w66659h	16	11	non	non	NOUN
6395w66659h	16	12	-	-	NOUN
6395w66659h	16	13	experts	expert	NOUN
6395w66659h	16	14	to	to	PART
6395w66659h	16	15	understand	understand	VERB
6395w66659h	16	16	the	the	DET
6395w66659h	16	17	underlying	underlying	ADJ
6395w66659h	16	18	semantics	semantic	NOUN
6395w66659h	16	19	of	of	ADP
6395w66659h	16	20	a	a	DET
6395w66659h	16	21	trace	trace	NOUN
6395w66659h	16	22	link	link	NOUN
6395w66659h	16	23	and	and	CCONJ
6395w66659h	16	24	improved	improve	VERB
6395w66659h	16	25	their	their	PRON
6395w66659h	16	26	ability	ability	NOUN
6395w66659h	16	27	to	to	PART
6395w66659h	16	28	vet	vet	VERB
6395w66659h	16	29	the	the	DET
6395w66659h	16	30	correctness	correctness	NOUN
6395w66659h	16	31	of	of	ADP
6395w66659h	16	32	the	the	DET
6395w66659h	16	33	link	link	NOUN
6395w66659h	16	34	.	.	PUNCT