id	sid	tid	token	lemma	pos
0r96736803s	1	1	techniques	technique	NOUN
0r96736803s	1	2	for	for	ADP
0r96736803s	1	3	improving	improve	VERB
0r96736803s	1	4	the	the	DET
0r96736803s	1	5	accuracy	accuracy	NOUN
0r96736803s	1	6	of	of	ADP
0r96736803s	1	7	the	the	DET
0r96736803s	1	8	global	global	ADJ
0r96736803s	1	9	approximations	approximation	NOUN
0r96736803s	1	10	used	use	VERB
0r96736803s	1	11	in	in	ADP
0r96736803s	1	12	various	various	ADJ
0r96736803s	1	13	multidisciplinary	multidisciplinary	ADJ
0r96736803s	1	14	design	design	NOUN
0r96736803s	1	15	optimization	optimization	NOUN
0r96736803s	1	16	(	(	PUNCT
0r96736803s	1	17	mdo	mdo	PROPN
0r96736803s	1	18	)	)	PUNCT
0r96736803s	1	19	procedures	procedure	NOUN
0r96736803s	1	20	,	,	PUNCT
0r96736803s	1	21	while	while	SCONJ
0r96736803s	1	22	reducing	reduce	VERB
0r96736803s	1	23	the	the	DET
0r96736803s	1	24	amount	amount	NOUN
0r96736803s	1	25	of	of	ADP
0r96736803s	1	26	design	design	NOUN
0r96736803s	1	27	space	space	NOUN
0r96736803s	1	28	information	information	NOUN
0r96736803s	1	29	required	require	VERB
0r96736803s	1	30	to	to	PART
0r96736803s	1	31	develop	develop	VERB
0r96736803s	1	32	the	the	DET
0r96736803s	1	33	approximations	approximation	NOUN
0r96736803s	1	34	,	,	PUNCT
0r96736803s	1	35	were	be	AUX
0r96736803s	1	36	studied	study	VERB
0r96736803s	1	37	in	in	ADP
0r96736803s	1	38	this	this	DET
0r96736803s	1	39	research	research	NOUN
0r96736803s	1	40	.	.	PUNCT
0r96736803s	2	1	these	these	DET
0r96736803s	2	2	improvements	improvement	NOUN
0r96736803s	2	3	can	can	AUX
0r96736803s	2	4	be	be	AUX
0r96736803s	2	5	achieved	achieve	VERB
0r96736803s	2	6	by	by	ADP
0r96736803s	2	7	incorporating	incorporate	VERB
0r96736803s	2	8	gradient	gradient	NOUN
0r96736803s	2	9	or	or	CCONJ
0r96736803s	2	10	sensitivity	sensitivity	NOUN
0r96736803s	2	11	information	information	NOUN
0r96736803s	2	12	into	into	ADP
0r96736803s	2	13	the	the	DET
0r96736803s	2	14	existing	exist	VERB
0r96736803s	2	15	approximation	approximation	NOUN
0r96736803s	2	16	techniques	technique	NOUN
0r96736803s	2	17	.	.	PUNCT
0r96736803s	3	1	an	an	DET
0r96736803s	3	2	approach	approach	NOUN
0r96736803s	3	3	to	to	PART
0r96736803s	3	4	develop	develop	VERB
0r96736803s	3	5	response	response	NOUN
0r96736803s	3	6	surface	surface	NOUN
0r96736803s	3	7	approximations	approximation	NOUN
0r96736803s	3	8	based	base	VERB
0r96736803s	3	9	upon	upon	SCONJ
0r96736803s	3	10	artificial	artificial	ADJ
0r96736803s	3	11	neural	neural	ADJ
0r96736803s	3	12	networks	network	NOUN
0r96736803s	3	13	trained	train	VERB
0r96736803s	3	14	using	use	VERB
0r96736803s	3	15	both	both	DET
0r96736803s	3	16	state	state	NOUN
0r96736803s	3	17	and	and	CCONJ
0r96736803s	3	18	sensitivity	sensitivity	NOUN
0r96736803s	3	19	information	information	NOUN
0r96736803s	3	20	is	be	AUX
0r96736803s	3	21	developed	develop	VERB
0r96736803s	3	22	.	.	PUNCT
0r96736803s	4	1	compared	compare	VERB
0r96736803s	4	2	to	to	ADP
0r96736803s	4	3	previous	previous	ADJ
0r96736803s	4	4	approaches	approach	NOUN
0r96736803s	4	5	,	,	PUNCT
0r96736803s	4	6	this	this	DET
0r96736803s	4	7	approach	approach	NOUN
0r96736803s	4	8	does	do	AUX
0r96736803s	4	9	not	not	PART
0r96736803s	4	10	require	require	VERB
0r96736803s	4	11	weighting	weight	VERB
0r96736803s	4	12	the	the	DET
0r96736803s	4	13	residuals	residual	NOUN
0r96736803s	4	14	of	of	ADP
0r96736803s	4	15	the	the	DET
0r96736803s	4	16	targets	target	NOUN
0r96736803s	4	17	and	and	CCONJ
0r96736803s	4	18	gradients	gradient	NOUN
0r96736803s	4	19	and	and	CCONJ
0r96736803s	4	20	is	be	AUX
0r96736803s	4	21	able	able	ADJ
0r96736803s	4	22	to	to	PART
0r96736803s	4	23	approximate	approximate	VERB
0r96736803s	4	24	gradient	gradient	ADJ
0r96736803s	4	25	-	-	PUNCT
0r96736803s	4	26	consistent	consistent	ADJ
0r96736803s	4	27	response	response	NOUN
0r96736803s	4	28	surfaces	surface	NOUN
0r96736803s	4	29	with	with	ADP
0r96736803s	4	30	a	a	DET
0r96736803s	4	31	relatively	relatively	ADV
0r96736803s	4	32	compact	compact	ADJ
0r96736803s	4	33	network	network	NOUN
0r96736803s	4	34	architecture	architecture	NOUN
0r96736803s	4	35	.	.	PUNCT
0r96736803s	5	1	numerical	numerical	ADJ
0r96736803s	5	2	simulation	simulation	PROPN
0r96736803s	5	3	on	on	ADP
0r96736803s	5	4	selected	select	VERB
0r96736803s	5	5	problems	problem	NOUN
0r96736803s	5	6	shows	show	VERB
0r96736803s	5	7	that	that	SCONJ
0r96736803s	5	8	this	this	DET
0r96736803s	5	9	approach	approach	NOUN
0r96736803s	5	10	possesses	possess	VERB
0r96736803s	5	11	the	the	DET
0r96736803s	5	12	capability	capability	NOUN
0r96736803s	5	13	to	to	PART
0r96736803s	5	14	develop	develop	VERB
0r96736803s	5	15	improved	improved	ADJ
0r96736803s	5	16	response	response	NOUN
0r96736803s	5	17	surface	surface	NOUN
0r96736803s	5	18	approximations	approximation	NOUN
0r96736803s	5	19	compared	compare	VERB
0r96736803s	5	20	to	to	ADP
0r96736803s	5	21	the	the	DET
0r96736803s	5	22	non	non	ADJ
0r96736803s	5	23	-	-	ADJ
0r96736803s	5	24	gradient	gradient	ADJ
0r96736803s	5	25	neural	neural	ADJ
0r96736803s	5	26	network	network	NOUN
0r96736803s	5	27	training	training	NOUN
0r96736803s	5	28	approach	approach	NOUN
0r96736803s	5	29	.	.	PUNCT
0r96736803s	6	1	one	one	NUM
0r96736803s	6	2	issue	issue	NOUN
0r96736803s	6	3	that	that	SCONJ
0r96736803s	6	4	this	this	DET
0r96736803s	6	5	approach	approach	NOUN
0r96736803s	6	6	can	can	AUX
0r96736803s	6	7	not	not	PART
0r96736803s	6	8	address	address	VERB
0r96736803s	6	9	properly	properly	ADV
0r96736803s	6	10	,	,	PUNCT
0r96736803s	6	11	however	however	ADV
0r96736803s	6	12	,	,	PUNCT
0r96736803s	6	13	is	be	AUX
0r96736803s	6	14	to	to	PART
0r96736803s	6	15	determine	determine	VERB
0r96736803s	6	16	the	the	DET
0r96736803s	6	17	step	step	NOUN
0r96736803s	6	18	size	size	NOUN
0r96736803s	6	19	for	for	ADP
0r96736803s	6	20	the	the	DET
0r96736803s	6	21	design	design	NOUN
0r96736803s	6	22	variables	variable	NOUN
0r96736803s	6	23	in	in	ADP
0r96736803s	6	24	the	the	DET
0r96736803s	6	25	taylor	taylor	PROPN
0r96736803s	6	26	series	series	PROPN
0r96736803s	6	27	expansion	expansion	NOUN
0r96736803s	6	28	that	that	PRON
0r96736803s	6	29	is	be	AUX
0r96736803s	6	30	used	use	VERB
0r96736803s	6	31	to	to	PART
0r96736803s	6	32	utilize	utilize	VERB
0r96736803s	6	33	sensitivity	sensitivity	NOUN
0r96736803s	6	34	-	-	PUNCT
0r96736803s	6	35	based	base	VERB
0r96736803s	6	36	,	,	PUNCT
0r96736803s	6	37	approximate	approximate	ADJ
0r96736803s	6	38	information	information	NOUN
0r96736803s	6	39	.	.	PUNCT
0r96736803s	7	1	it	it	PRON
0r96736803s	7	2	is	be	AUX
0r96736803s	7	3	also	also	ADV
0r96736803s	7	4	a	a	DET
0r96736803s	7	5	common	common	ADJ
0r96736803s	7	6	challenge	challenge	NOUN
0r96736803s	7	7	associated	associate	VERB
0r96736803s	7	8	with	with	ADP
0r96736803s	7	9	a	a	DET
0r96736803s	7	10	particular	particular	ADJ
0r96736803s	7	11	gradient	gradient	NOUN
0r96736803s	7	12	-	-	PUNCT
0r96736803s	7	13	enhanced	enhance	VERB
0r96736803s	7	14	approach	approach	NOUN
0r96736803s	7	15	,	,	PUNCT
0r96736803s	7	16	database	database	NOUN
0r96736803s	7	17	augmentation	augmentation	NOUN
0r96736803s	7	18	.	.	PUNCT
0r96736803s	8	1	this	this	DET
0r96736803s	8	2	research	research	NOUN
0r96736803s	8	3	develops	develop	VERB
0r96736803s	8	4	another	another	DET
0r96736803s	8	5	gradient	gradient	NOUN
0r96736803s	8	6	-	-	PUNCT
0r96736803s	8	7	enhanced	enhance	VERB
0r96736803s	8	8	approach	approach	NOUN
0r96736803s	8	9	based	base	VERB
0r96736803s	8	10	on	on	ADP
0r96736803s	8	11	kriging	krige	VERB
0r96736803s	8	12	models	model	NOUN
0r96736803s	8	13	to	to	PART
0r96736803s	8	14	solve	solve	VERB
0r96736803s	8	15	the	the	DET
0r96736803s	8	16	problem	problem	NOUN
0r96736803s	8	17	by	by	ADP
0r96736803s	8	18	including	include	VERB
0r96736803s	8	19	the	the	DET
0r96736803s	8	20	step	step	NOUN
0r96736803s	8	21	size	size	NOUN
0r96736803s	8	22	as	as	ADP
0r96736803s	8	23	one	one	NUM
0r96736803s	8	24	of	of	ADP
0r96736803s	8	25	model	model	NOUN
0r96736803s	8	26	parameters	parameter	NOUN
0r96736803s	8	27	.	.	PUNCT
0r96736803s	9	1	this	this	DET
0r96736803s	9	2	approach	approach	NOUN
0r96736803s	9	3	can	can	AUX
0r96736803s	9	4	also	also	ADV
0r96736803s	9	5	characterize	characterize	VERB
0r96736803s	9	6	the	the	DET
0r96736803s	9	7	uncertainty	uncertainty	NOUN
0r96736803s	9	8	of	of	ADP
0r96736803s	9	9	approximations	approximation	NOUN
0r96736803s	9	10	,	,	PUNCT
0r96736803s	9	11	which	which	PRON
0r96736803s	9	12	is	be	AUX
0r96736803s	9	13	another	another	DET
0r96736803s	9	14	goal	goal	NOUN
0r96736803s	9	15	of	of	ADP
0r96736803s	9	16	this	this	DET
0r96736803s	9	17	research	research	NOUN
0r96736803s	9	18	.	.	PUNCT
0r96736803s	10	1	based	base	VERB
0r96736803s	10	2	on	on	ADP
0r96736803s	10	3	database	database	NOUN
0r96736803s	10	4	augmentation	augmentation	NOUN
0r96736803s	10	5	,	,	PUNCT
0r96736803s	10	6	the	the	DET
0r96736803s	10	7	approach	approach	NOUN
0r96736803s	10	8	develops	develop	VERB
0r96736803s	10	9	kriging	krige	VERB
0r96736803s	10	10	models	model	NOUN
0r96736803s	10	11	by	by	ADP
0r96736803s	10	12	minimizing	minimize	VERB
0r96736803s	10	13	the	the	DET
0r96736803s	10	14	integrated	integrate	VERB
0r96736803s	10	15	mean	mean	ADJ
0r96736803s	10	16	squared	squared	ADJ
0r96736803s	10	17	error	error	NOUN
0r96736803s	10	18	(	(	PUNCT
0r96736803s	10	19	imse	imse	PROPN
0r96736803s	10	20	)	)	PUNCT
0r96736803s	10	21	criterion	criterion	NOUN
0r96736803s	10	22	instead	instead	ADV
0r96736803s	10	23	of	of	ADP
0r96736803s	10	24	the	the	DET
0r96736803s	10	25	maximum	maximum	ADJ
0r96736803s	10	26	likelihood	likelihood	NOUN
0r96736803s	10	27	estimation	estimation	NOUN
0r96736803s	10	28	(	(	PUNCT
0r96736803s	10	29	mle	mle	PROPN
0r96736803s	10	30	)	)	PUNCT
0r96736803s	10	31	process	process	NOUN
0r96736803s	10	32	often	often	ADV
0r96736803s	10	33	used	use	VERB
0r96736803s	10	34	.	.	PUNCT
0r96736803s	11	1	numerical	numerical	PROPN
0r96736803s	11	2	simulation	simulation	PROPN
0r96736803s	11	3	on	on	ADP
0r96736803s	11	4	selected	select	VERB
0r96736803s	11	5	,	,	PUNCT
0r96736803s	11	6	small	small	ADJ
0r96736803s	11	7	-	-	PUNCT
0r96736803s	11	8	scale	scale	NOUN
0r96736803s	11	9	problems	problem	NOUN
0r96736803s	11	10	shows	show	VERB
0r96736803s	11	11	that	that	SCONJ
0r96736803s	11	12	this	this	DET
0r96736803s	11	13	imse	imse	PROPN
0r96736803s	11	14	-	-	PUNCT
0r96736803s	11	15	based	base	VERB
0r96736803s	11	16	gradient	gradient	NOUN
0r96736803s	11	17	-	-	PUNCT
0r96736803s	11	18	enhanced	enhance	VERB
0r96736803s	11	19	kriging	kriging	NOUN
0r96736803s	11	20	(	(	PUNCT
0r96736803s	11	21	imse	imse	PROPN
0r96736803s	11	22	-	-	PUNCT
0r96736803s	11	23	gek	gek	PROPN
0r96736803s	11	24	)	)	PUNCT
0r96736803s	11	25	approach	approach	NOUN
0r96736803s	11	26	can	can	AUX
0r96736803s	11	27	improve	improve	VERB
0r96736803s	11	28	approximation	approximation	NOUN
0r96736803s	11	29	accuracy	accuracy	NOUN
0r96736803s	11	30	by	by	ADP
0r96736803s	11	31	60~80	60~80	NUM
0r96736803s	11	32	%	%	NOUN
0r96736803s	11	33	over	over	ADP
0r96736803s	11	34	the	the	DET
0r96736803s	11	35	non	non	ADJ
0r96736803s	11	36	-	-	ADJ
0r96736803s	11	37	gradient	gradient	ADJ
0r96736803s	11	38	kriging	kriging	ADJ
0r96736803s	11	39	approximation	approximation	NOUN
0r96736803s	11	40	.	.	PUNCT
0r96736803s	12	1	an	an	DET
0r96736803s	12	2	analytical	analytical	ADJ
0r96736803s	12	3	approach	approach	NOUN
0r96736803s	12	4	to	to	PART
0r96736803s	12	5	compute	compute	PROPN
0r96736803s	12	6	imse	imse	PROPN
0r96736803s	12	7	was	be	AUX
0r96736803s	12	8	developed	develop	VERB
0r96736803s	12	9	to	to	PART
0r96736803s	12	10	reduce	reduce	VERB
0r96736803s	12	11	the	the	DET
0r96736803s	12	12	prohibitive	prohibitive	ADJ
0r96736803s	12	13	computing	computing	NOUN
0r96736803s	12	14	cost	cost	NOUN
0r96736803s	12	15	associated	associate	VERB
0r96736803s	12	16	with	with	ADP
0r96736803s	12	17	applying	apply	VERB
0r96736803s	12	18	the	the	DET
0r96736803s	12	19	imse	imse	ADJ
0r96736803s	12	20	-	-	PUNCT
0r96736803s	12	21	gek	gek	NOUN
0r96736803s	12	22	approach	approach	NOUN
0r96736803s	12	23	to	to	ADP
0r96736803s	12	24	high	high	ADJ
0r96736803s	12	25	-	-	PUNCT
0r96736803s	12	26	dimensional	dimensional	ADJ
0r96736803s	12	27	problems	problem	NOUN
0r96736803s	12	28	.	.	PUNCT
0r96736803s	13	1	some	some	DET
0r96736803s	13	2	additional	additional	ADJ
0r96736803s	13	3	implementation	implementation	NOUN
0r96736803s	13	4	issues	issue	NOUN
0r96736803s	13	5	associated	associate	VERB
0r96736803s	13	6	with	with	ADP
0r96736803s	13	7	the	the	DET
0r96736803s	13	8	approach	approach	NOUN
0r96736803s	13	9	,	,	PUNCT
0r96736803s	13	10	such	such	ADJ
0r96736803s	13	11	as	as	ADP
0r96736803s	13	12	the	the	DET
0r96736803s	13	13	database	database	NOUN
0r96736803s	13	14	augmenting	augment	VERB
0r96736803s	13	15	scheme	scheme	NOUN
0r96736803s	13	16	,	,	PUNCT
0r96736803s	13	17	the	the	DET
0r96736803s	13	18	use	use	NOUN
0r96736803s	13	19	of	of	ADP
0r96736803s	13	20	variable	variable	ADJ
0r96736803s	13	21	step	step	NOUN
0r96736803s	13	22	sizes	size	NOUN
0r96736803s	13	23	and	and	CCONJ
0r96736803s	13	24	the	the	DET
0r96736803s	13	25	inclusion	inclusion	NOUN
0r96736803s	13	26	of	of	ADP
0r96736803s	13	27	nugget	nugget	NOUN
0r96736803s	13	28	effects	effect	NOUN
0r96736803s	13	29	at	at	ADP
0r96736803s	13	30	added	add	VERB
0r96736803s	13	31	points	point	NOUN
0r96736803s	13	32	,	,	PUNCT
0r96736803s	13	33	are	be	AUX
0r96736803s	13	34	also	also	ADV
0r96736803s	13	35	presented	present	VERB
0r96736803s	13	36	.	.	PUNCT