-
Robertson, S.E.: OKAPI at TREC-1 (1994)
0.41
0.40709057 = sum of:
0.40709057 = product of:
1.4538949 = sum of:
0.021982225 = weight(abstract_txt:system in 7953) [ClassicSimilarity], result of:
0.021982225 = score(doc=7953,freq=1.0), product of:
0.0521476 = queryWeight, product of:
3.3723085 = idf(docFreq=4123, maxDocs=44218)
0.015463472 = queryNorm
0.42153856 = fieldWeight in 7953, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.3723085 = idf(docFreq=4123, maxDocs=44218)
0.125 = fieldNorm(doc=7953)
0.03205242 = weight(abstract_txt:describes in 7953) [ClassicSimilarity], result of:
0.03205242 = score(doc=7953,freq=1.0), product of:
0.067054376 = queryWeight, product of:
1.1339566 = boost
3.8240511 = idf(docFreq=2624, maxDocs=44218)
0.015463472 = queryNorm
0.4780064 = fieldWeight in 7953, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.8240511 = idf(docFreq=2624, maxDocs=44218)
0.125 = fieldNorm(doc=7953)
0.09015158 = weight(abstract_txt:experimental in 7953) [ClassicSimilarity], result of:
0.09015158 = score(doc=7953,freq=1.0), product of:
0.13360892 = queryWeight, product of:
1.6006655 = boost
5.397938 = idf(docFreq=543, maxDocs=44218)
0.015463472 = queryNorm
0.6747422 = fieldWeight in 7953, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.397938 = idf(docFreq=543, maxDocs=44218)
0.125 = fieldNorm(doc=7953)
0.04811012 = weight(abstract_txt:retrieval in 7953) [ClassicSimilarity], result of:
0.04811012 = score(doc=7953,freq=1.0), product of:
0.110752665 = queryWeight, product of:
2.0609856 = boost
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.015463472 = queryNorm
0.43439242 = fieldWeight in 7953, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.125 = fieldNorm(doc=7953)
0.07580716 = weight(abstract_txt:text in 7953) [ClassicSimilarity], result of:
0.07580716 = score(doc=7953,freq=1.0), product of:
0.14996965 = queryWeight, product of:
2.398278 = boost
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.015463472 = queryNorm
0.5054833 = fieldWeight in 7953, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.125 = fieldNorm(doc=7953)
0.59709245 = weight(abstract_txt:trec in 7953) [ClassicSimilarity], result of:
0.59709245 = score(doc=7953,freq=3.0), product of:
0.41163966 = queryWeight, product of:
3.9733465 = boost
6.699675 = idf(docFreq=147, maxDocs=44218)
0.015463472 = queryNorm
1.4505222 = fieldWeight in 7953, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
6.699675 = idf(docFreq=147, maxDocs=44218)
0.125 = fieldNorm(doc=7953)
0.5886989 = weight(abstract_txt:okapi in 7953) [ClassicSimilarity], result of:
0.5886989 = score(doc=7953,freq=1.0), product of:
0.5881102 = queryWeight, product of:
4.749274 = boost
8.008008 = idf(docFreq=39, maxDocs=44218)
0.015463472 = queryNorm
1.001001 = fieldWeight in 7953, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
8.008008 = idf(docFreq=39, maxDocs=44218)
0.125 = fieldNorm(doc=7953)
0.28 = coord(7/25)
-
TREC: experiment and evaluation in information retrieval (2005)
0.32
0.3229914 = sum of:
0.3229914 = product of:
0.8971983 = sum of:
0.01602621 = weight(abstract_txt:describes in 636) [ClassicSimilarity], result of:
0.01602621 = score(doc=636,freq=1.0), product of:
0.067054376 = queryWeight, product of:
1.1339566 = boost
3.8240511 = idf(docFreq=2624, maxDocs=44218)
0.015463472 = queryNorm
0.2390032 = fieldWeight in 636, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.8240511 = idf(docFreq=2624, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.02663858 = weight(abstract_txt:techniques in 636) [ClassicSimilarity], result of:
0.02663858 = score(doc=636,freq=1.0), product of:
0.09409083 = queryWeight, product of:
1.3432488 = boost
4.5298495 = idf(docFreq=1295, maxDocs=44218)
0.015463472 = queryNorm
0.2831156 = fieldWeight in 636, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.5298495 = idf(docFreq=1295, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.036169358 = weight(abstract_txt:best in 636) [ClassicSimilarity], result of:
0.036169358 = score(doc=636,freq=1.0), product of:
0.115372 = queryWeight, product of:
1.487418 = boost
5.0160327 = idf(docFreq=796, maxDocs=44218)
0.015463472 = queryNorm
0.31350204 = fieldWeight in 636, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.0160327 = idf(docFreq=796, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.04507579 = weight(abstract_txt:experimental in 636) [ClassicSimilarity], result of:
0.04507579 = score(doc=636,freq=1.0), product of:
0.13360892 = queryWeight, product of:
1.6006655 = boost
5.397938 = idf(docFreq=543, maxDocs=44218)
0.015463472 = queryNorm
0.3373711 = fieldWeight in 636, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.397938 = idf(docFreq=543, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.049351625 = weight(abstract_txt:conference in 636) [ClassicSimilarity], result of:
0.049351625 = score(doc=636,freq=1.0), product of:
0.14193 = queryWeight, product of:
1.6497568 = boost
5.563489 = idf(docFreq=460, maxDocs=44218)
0.015463472 = queryNorm
0.34771806 = fieldWeight in 636, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.563489 = idf(docFreq=460, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.077276446 = weight(abstract_txt:1992 in 636) [ClassicSimilarity], result of:
0.077276446 = score(doc=636,freq=1.0), product of:
0.19138357 = queryWeight, product of:
1.9157338 = boost
6.4604454 = idf(docFreq=187, maxDocs=44218)
0.015463472 = queryNorm
0.40377784 = fieldWeight in 636, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
6.4604454 = idf(docFreq=187, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.08332917 = weight(abstract_txt:retrieval in 636) [ClassicSimilarity], result of:
0.08332917 = score(doc=636,freq=12.0), product of:
0.110752665 = queryWeight, product of:
2.0609856 = boost
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.015463472 = queryNorm
0.7523897 = fieldWeight in 636, product of:
3.4641016 = tf(freq=12.0), with freq of:
12.0 = termFreq=12.0
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.07580716 = weight(abstract_txt:text in 636) [ClassicSimilarity], result of:
0.07580716 = score(doc=636,freq=4.0), product of:
0.14996965 = queryWeight, product of:
2.398278 = boost
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.015463472 = queryNorm
0.5054833 = fieldWeight in 636, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.48752397 = weight(abstract_txt:trec in 636) [ClassicSimilarity], result of:
0.48752397 = score(doc=636,freq=8.0), product of:
0.41163966 = queryWeight, product of:
3.9733465 = boost
6.699675 = idf(docFreq=147, maxDocs=44218)
0.015463472 = queryNorm
1.1843464 = fieldWeight in 636, product of:
2.828427 = tf(freq=8.0), with freq of:
8.0 = termFreq=8.0
6.699675 = idf(docFreq=147, maxDocs=44218)
0.0625 = fieldNorm(doc=636)
0.36 = coord(9/25)
-
Robertson, S.E.: OKAPI at TREC-3 (1995)
0.31
0.31368914 = sum of:
0.31368914 = product of:
1.1203184 = sum of:
0.016486669 = weight(abstract_txt:system in 5694) [ClassicSimilarity], result of:
0.016486669 = score(doc=5694,freq=1.0), product of:
0.0521476 = queryWeight, product of:
3.3723085 = idf(docFreq=4123, maxDocs=44218)
0.015463472 = queryNorm
0.3161539 = fieldWeight in 5694, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.3723085 = idf(docFreq=4123, maxDocs=44218)
0.09375 = fieldNorm(doc=5694)
0.049238194 = weight(abstract_txt:terms in 5694) [ClassicSimilarity], result of:
0.049238194 = score(doc=5694,freq=3.0), product of:
0.074984826 = queryWeight, product of:
1.199139 = boost
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.015463472 = queryNorm
0.6566421 = fieldWeight in 5694, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.09375 = fieldNorm(doc=5694)
0.03381587 = weight(abstract_txt:searching in 5694) [ClassicSimilarity], result of:
0.03381587 = score(doc=5694,freq=1.0), product of:
0.08418333 = queryWeight, product of:
1.270562 = boost
4.284727 = idf(docFreq=1655, maxDocs=44218)
0.015463472 = queryNorm
0.40169317 = fieldWeight in 5694, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.284727 = idf(docFreq=1655, maxDocs=44218)
0.09375 = fieldNorm(doc=5694)
0.051028483 = weight(abstract_txt:retrieval in 5694) [ClassicSimilarity], result of:
0.051028483 = score(doc=5694,freq=2.0), product of:
0.110752665 = queryWeight, product of:
2.0609856 = boost
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.015463472 = queryNorm
0.4607427 = fieldWeight in 5694, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.09375 = fieldNorm(doc=5694)
0.08040564 = weight(abstract_txt:text in 5694) [ClassicSimilarity], result of:
0.08040564 = score(doc=5694,freq=2.0), product of:
0.14996965 = queryWeight, product of:
2.398278 = boost
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.015463472 = queryNorm
0.53614604 = fieldWeight in 5694, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.0438666 = idf(docFreq=2106, maxDocs=44218)
0.09375 = fieldNorm(doc=5694)
0.44781932 = weight(abstract_txt:trec in 5694) [ClassicSimilarity], result of:
0.44781932 = score(doc=5694,freq=3.0), product of:
0.41163966 = queryWeight, product of:
3.9733465 = boost
6.699675 = idf(docFreq=147, maxDocs=44218)
0.015463472 = queryNorm
1.0878916 = fieldWeight in 5694, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
6.699675 = idf(docFreq=147, maxDocs=44218)
0.09375 = fieldNorm(doc=5694)
0.4415242 = weight(abstract_txt:okapi in 5694) [ClassicSimilarity], result of:
0.4415242 = score(doc=5694,freq=1.0), product of:
0.5881102 = queryWeight, product of:
4.749274 = boost
8.008008 = idf(docFreq=39, maxDocs=44218)
0.015463472 = queryNorm
0.7507508 = fieldWeight in 5694, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
8.008008 = idf(docFreq=39, maxDocs=44218)
0.09375 = fieldNorm(doc=5694)
0.28 = coord(7/25)
-
Beaulieu, M.; Robertson, S.; Rasmussen, E.: Evaluating interactive systems in TREC (1996)
0.29
0.29153848 = sum of:
0.29153848 = product of:
1.0412089 = sum of:
0.021591583 = weight(abstract_txt:design in 2998) [ClassicSimilarity], result of:
0.021591583 = score(doc=2998,freq=1.0), product of:
0.07048925 = queryWeight, product of:
1.1626374 = boost
3.9207718 = idf(docFreq=2382, maxDocs=44218)
0.015463472 = queryNorm
0.3063103 = fieldWeight in 2998, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.9207718 = idf(docFreq=2382, maxDocs=44218)
0.078125 = fieldNorm(doc=2998)
0.02817989 = weight(abstract_txt:searching in 2998) [ClassicSimilarity], result of:
0.02817989 = score(doc=2998,freq=1.0), product of:
0.08418333 = queryWeight, product of:
1.270562 = boost
4.284727 = idf(docFreq=1655, maxDocs=44218)
0.015463472 = queryNorm
0.3347443 = fieldWeight in 2998, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.284727 = idf(docFreq=1655, maxDocs=44218)
0.078125 = fieldNorm(doc=2998)
0.033298228 = weight(abstract_txt:techniques in 2998) [ClassicSimilarity], result of:
0.033298228 = score(doc=2998,freq=1.0), product of:
0.09409083 = queryWeight, product of:
1.3432488 = boost
4.5298495 = idf(docFreq=1295, maxDocs=44218)
0.015463472 = queryNorm
0.3538945 = fieldWeight in 2998, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
4.5298495 = idf(docFreq=1295, maxDocs=44218)
0.078125 = fieldNorm(doc=2998)
0.056344736 = weight(abstract_txt:experimental in 2998) [ClassicSimilarity], result of:
0.056344736 = score(doc=2998,freq=1.0), product of:
0.13360892 = queryWeight, product of:
1.6006655 = boost
5.397938 = idf(docFreq=543, maxDocs=44218)
0.015463472 = queryNorm
0.4217139 = fieldWeight in 2998, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.397938 = idf(docFreq=543, maxDocs=44218)
0.078125 = fieldNorm(doc=2998)
0.052080728 = weight(abstract_txt:retrieval in 2998) [ClassicSimilarity], result of:
0.052080728 = score(doc=2998,freq=3.0), product of:
0.110752665 = queryWeight, product of:
2.0609856 = boost
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.015463472 = queryNorm
0.47024357 = fieldWeight in 2998, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.078125 = fieldNorm(doc=2998)
0.48177692 = weight(abstract_txt:trec in 2998) [ClassicSimilarity], result of:
0.48177692 = score(doc=2998,freq=5.0), product of:
0.41163966 = queryWeight, product of:
3.9733465 = boost
6.699675 = idf(docFreq=147, maxDocs=44218)
0.015463472 = queryNorm
1.1703851 = fieldWeight in 2998, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
6.699675 = idf(docFreq=147, maxDocs=44218)
0.078125 = fieldNorm(doc=2998)
0.36793682 = weight(abstract_txt:okapi in 2998) [ClassicSimilarity], result of:
0.36793682 = score(doc=2998,freq=1.0), product of:
0.5881102 = queryWeight, product of:
4.749274 = boost
8.008008 = idf(docFreq=39, maxDocs=44218)
0.015463472 = queryNorm
0.6256256 = fieldWeight in 2998, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
8.008008 = idf(docFreq=39, maxDocs=44218)
0.078125 = fieldNorm(doc=2998)
0.28 = coord(7/25)
-
Fieldhouse, M.; Hancock-Beaulieu, M.: ¬The changing face of OKAPI (1994)
0.26
0.26287758 = sum of:
0.26287758 = product of:
0.82149243 = sum of:
0.01373889 = weight(abstract_txt:system in 1493) [ClassicSimilarity], result of:
0.01373889 = score(doc=1493,freq=1.0), product of:
0.0521476 = queryWeight, product of:
3.3723085 = idf(docFreq=4123, maxDocs=44218)
0.015463472 = queryNorm
0.2634616 = fieldWeight in 1493, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.3723085 = idf(docFreq=4123, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.020032763 = weight(abstract_txt:describes in 1493) [ClassicSimilarity], result of:
0.020032763 = score(doc=1493,freq=1.0), product of:
0.067054376 = queryWeight, product of:
1.1339566 = boost
3.8240511 = idf(docFreq=2624, maxDocs=44218)
0.015463472 = queryNorm
0.298754 = fieldWeight in 1493, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
3.8240511 = idf(docFreq=2624, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.030535107 = weight(abstract_txt:design in 1493) [ClassicSimilarity], result of:
0.030535107 = score(doc=1493,freq=2.0), product of:
0.07048925 = queryWeight, product of:
1.1626374 = boost
3.9207718 = idf(docFreq=2382, maxDocs=44218)
0.015463472 = queryNorm
0.43318814 = fieldWeight in 1493, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9207718 = idf(docFreq=2382, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.0452117 = weight(abstract_txt:best in 1493) [ClassicSimilarity], result of:
0.0452117 = score(doc=1493,freq=1.0), product of:
0.115372 = queryWeight, product of:
1.487418 = boost
5.0160327 = idf(docFreq=796, maxDocs=44218)
0.015463472 = queryNorm
0.39187756 = fieldWeight in 1493, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.0160327 = idf(docFreq=796, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.056344736 = weight(abstract_txt:experimental in 1493) [ClassicSimilarity], result of:
0.056344736 = score(doc=1493,freq=1.0), product of:
0.13360892 = queryWeight, product of:
1.6006655 = boost
5.397938 = idf(docFreq=543, maxDocs=44218)
0.015463472 = queryNorm
0.4217139 = fieldWeight in 1493, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
5.397938 = idf(docFreq=543, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.09276428 = weight(abstract_txt:match in 1493) [ClassicSimilarity], result of:
0.09276428 = score(doc=1493,freq=1.0), product of:
0.18628894 = queryWeight, product of:
1.8900634 = boost
6.373877 = idf(docFreq=204, maxDocs=44218)
0.015463472 = queryNorm
0.49795914 = fieldWeight in 1493, product of:
1.0 = tf(freq=1.0), with freq of:
1.0 = termFreq=1.0
6.373877 = idf(docFreq=204, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.042523734 = weight(abstract_txt:retrieval in 1493) [ClassicSimilarity], result of:
0.042523734 = score(doc=1493,freq=2.0), product of:
0.110752665 = queryWeight, product of:
2.0609856 = boost
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.015463472 = queryNorm
0.38395226 = fieldWeight in 1493, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.4751394 = idf(docFreq=3720, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.5203412 = weight(abstract_txt:okapi in 1493) [ClassicSimilarity], result of:
0.5203412 = score(doc=1493,freq=2.0), product of:
0.5881102 = queryWeight, product of:
4.749274 = boost
8.008008 = idf(docFreq=39, maxDocs=44218)
0.015463472 = queryNorm
0.88476825 = fieldWeight in 1493, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
8.008008 = idf(docFreq=39, maxDocs=44218)
0.078125 = fieldNorm(doc=1493)
0.32 = coord(8/25)