-
Robertson, S.E.: On relevance weight estimation and query expansion (1986)
0.00
0.001747012 = product of:
0.00873506 = sum of:
0.00873506 = weight(_text_:e in 3875) [ClassicSimilarity], result of:
0.00873506 = score(doc=3875,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.15880844 = fieldWeight in 3875, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.078125 = fieldNorm(doc=3875)
0.2 = coord(1/5)
- Language
- e
-
Robertson, S.E.: On term selection for query expansion (1990)
0.00
0.0013976095 = product of:
0.006988047 = sum of:
0.006988047 = weight(_text_:e in 2650) [ClassicSimilarity], result of:
0.006988047 = score(doc=2650,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.12704675 = fieldWeight in 2650, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0625 = fieldNorm(doc=2650)
0.2 = coord(1/5)
- Language
- e
-
Robertson, S.E.; Walker, S.; Hancock-Beaulieu, M.M.: Large test collection experiments of an operational, interactive system : OKAPI at TREC (1995)
0.00
0.0012229083 = product of:
0.006114541 = sum of:
0.006114541 = weight(_text_:e in 6964) [ClassicSimilarity], result of:
0.006114541 = score(doc=6964,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.1111659 = fieldWeight in 6964, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.0546875 = fieldNorm(doc=6964)
0.2 = coord(1/5)
- Language
- e
-
Vechtomova, O.; Robertson, S.E.: ¬A domain-independent approach to finding related entities (2012)
0.00
0.0010482072 = product of:
0.0052410355 = sum of:
0.0052410355 = weight(_text_:e in 2733) [ClassicSimilarity], result of:
0.0052410355 = score(doc=2733,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.09528506 = fieldWeight in 2733, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.046875 = fieldNorm(doc=2733)
0.2 = coord(1/5)
- Language
- e