Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995)
0.00
0.0017149168 = product of:
0.0034298336 = sum of:
0.0034298336 = product of:
0.006859667 = sum of:
0.006859667 = weight(_text_:s in 6964) [ClassicSimilarity], result of:
0.006859667 = score(doc=6964,freq=4.0), product of:
0.057684682 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.053056188 = queryNorm
0.118916616 = fieldWeight in 6964, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0546875 = fieldNorm(doc=6964)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 31(1995) no.3, S.345-360