LAPIN1[result,desc] | 0.3056 | 0.3202 | 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 |
brklypat2[result,desc] | 0.2236 | 0.2690 | auto | JA | DESCRIPTION NARRATIVE | kkh98 kkh99 | | bi-character | character analysis | inverted file | bi-character | probabilistic model | tf,dl,ql,cl | none | none |
DOVE3[result,desc] | 0.2176 | 0.2571 | auto | JA | DESCRIPTION NARRATIVE | kkh98 kkh99 | none | word | morphological analysis | inverted file | word | vector space model | SMART | none | none |
DOVE2[result,desc] | 0.1770 | 0.1978 | auto | JA | DESCRIPTION | kkh98 kkh99 | none | word | morphological analysis | inverted file | word | vector space model | SMART | none | none |
SRGDU6[result,desc] | 0.1385 | 0.1674 | 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 |
IFLAB2[result,desc] | 0.1384 | 0.1571 | auto | JA | DESCRIPTION | kkh98 kkh99 | none | word | morphological analysis | inverted file | word | Probabilistic model | Okapi | none | none |
SRGDU4[result,desc] | 0.1357 | 0.1661 | auto | JA | DESCRIPTION NARRATIVE | kkh98 kkh99 | | word | longest matching with a dictionary | inverted file | word | Okapi | tf + idf + dl | none | none |
SRGDU2[result,desc] | 0.1347 | 0.1783 | 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 |
IFLAB1[result,desc] | 0.1325 | 0.1498 | auto | JA | DESCRIPTION | kkh98 kkh99 | none | word-based bigram | morphological analysis | inverted file | word-based bigram | Probabilistic model | Okapi | none | none |
IFLAB3[result,desc] | 0.1318 | 0.1746 | auto | JA | DESCRIPTION NARRATIVE | kkh98 kkh99 | none | word | morphological analysis | inverted file | word | Probabilistic model | Okapi | none | none |
IFLAB4[result,desc] | 0.1316 | 0.1696 | auto | JA | DESCRIPTION NARRATIVE | kkh98 kkh99 | none | word-based bigram | morphological analysis | inverted file | word-based bigram | Probabilistic model | Okapi | none | none |
IFLAB7[result,desc] | 0.0869 | 0.1105 | auto | JA | TITLE | kkh98 kkh99 | none | word | morphological analysis | inverted file | word | Probabilistic model | Okapi | none | none |
IFLAB8[result,desc] | 0.0841 | 0.1162 | auto | JA | TITLE | kkh98 kkh99 | none | word-based bigram | morphological analysis | inverted file | word-based bigram | Probabilistic model | Okapi | none | none |
brklypat4[result,desc] | 0.0827 | 0.1205 | 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] | 0.0020 | 0.0054 | manual | EN | TITLE | kkh98 kkh99 | paj95 paj96 paj97 | word | morphological analysis | standard inquery | word | vector space model | standard inquery | gsmd | gsmd |
sics2[result,desc] | 0.0014 | 0.0054 | manual | en | DESCRIPTION | kkh98 kkh99 | paj95 paj96 paj97 | word | morphological analysis | standard inquery | word | vector space model | standard inquery | gsmd | gsmd |