Optional, A+B

ID	Average precision	R-Precision	MODE	TOPIC-LANG	TOPIG-TAG	TARGET-CORPUS	TRAINING-CORPUS	INDEX-UNIT	INDEXING	INDEX-STRUCTURE	QUERY-UNIT	SEARCH-MODE	RANKIG-FACTOR	QUERY-EXPANSION	TRANSLATION
LAPIN1[result,desc]	0.2755	0.3038	auto	JA	TITLE DESCRIPTION CONCEPT NARRATIVE	kkh98 kkh99		character n-gram	normalization of token form	inverted file	word	probabilistic model	tf + document length + term weight	pseudo feedback	none
DOVE3[result,desc]	0.2309	0.2775	auto	JA	DESCRIPTION NARRATIVE	kkh98 kkh99	none	word	morphological analysis	inverted file	word	vector space model	SMART	none	none
brklypat2[result,desc]	0.2219	0.2693	auto	JA	DESCRIPTION NARRATIVE	kkh98 kkh99		bi-character	character analysis	inverted file	bi-character	probabilistic model	tf,dl,ql,cl	none	none
DOVE2[result,desc]	0.2121	0.2557	auto	JA	DESCRIPTION	kkh98 kkh99	none	word	morphological analysis	inverted file	word	vector space model	SMART	none	none
IFLAB2[result,desc]	0.1683	0.2045	auto	JA	DESCRIPTION	kkh98 kkh99	none	word	morphological analysis	inverted file	word	Probabilistic model	Okapi	none	none
SRGDU4[result,desc]	0.1583	0.1813	auto	JA	DESCRIPTION NARRATIVE	kkh98 kkh99		word	longest matching with a dictionary	inverted file	word	Okapi	tf + idf + dl	none	none
SRGDU6[result,desc]	0.1581	0.1896	auto	JA	DESCRIPTION NARRATIVE	kkh98 kkh99		word	longest matching with a dictionary	inverted file	word	vector space model	tf/idf + cosine measure	psudo feedback, Rocchio method	none
IFLAB1[result,desc]	0.1559	0.1904	auto	JA	DESCRIPTION	kkh98 kkh99	none	word-based bigram	morphological analysis	inverted file	word-based bigram	Probabilistic model	Okapi	none	none
IFLAB4[result,desc]	0.1440	0.1815	auto	JA	DESCRIPTION NARRATIVE	kkh98 kkh99	none	word-based bigram	morphological analysis	inverted file	word-based bigram	Probabilistic model	Okapi	none	none
SRGDU2[result,desc]	0.1370	0.1820	auto	JA	DESCRIPTION NARRATIVE	kkh98 kkh99		word	longest matching with a dictionary	inverted file	word	Okapi	tf + idf + dl	pseudo feedback, original method using Taylor expansion	none
IFLAB3[result,desc]	0.1337	0.1901	auto	JA	DESCRIPTION NARRATIVE	kkh98 kkh99	none	word	morphological analysis	inverted file	word	Probabilistic model	Okapi	none	none
IFLAB7[result,desc]	0.1214	0.1562	auto	JA	TITLE	kkh98 kkh99	none	word	morphological analysis	inverted file	word	Probabilistic model	Okapi	none	none
IFLAB8[result,desc]	0.1050	0.1379	auto	JA	TITLE	kkh98 kkh99	none	word-based bigram	morphological analysis	inverted file	word-based bigram	Probabilistic model	Okapi	none	none
brklypat4[result,desc]	0.0894	0.1327	auto	EN	DESCRIPTION NARRATIVE	kkh98 kkh99	paj1995j.txt paj1996j.txt paj1997j.txt paj1995e.txt paj1996e.txt paj1997e.txt	bi-character	character analysis	inverted file	words in English queries, but bi-character in translated Japanese queryies.	probabilistic model	tf,dl,ql,cl	none	corpus-based
sics3[result,desc]	0.0018	0.0051	manual	EN	TITLE	kkh98 kkh99	paj95 paj96 paj97	word	morphological analysis	standard inquery	word	vector space model	standard inquery	gsmd	gsmd
sics2[result,desc]	0.0013	0.0043	manual	en	DESCRIPTION	kkh98 kkh99	paj95 paj96 paj97	word	morphological analysis	standard inquery	word	vector space model	standard inquery	gsmd	gsmd