-
Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987)
0.00
0.002046501 = product of:
0.03172077 = sum of:
0.00799471 = weight(_text_:e in 334) [ClassicSimilarity], result of:
0.00799471 = score(doc=334,freq=2.0), product of:
0.031463653 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.021889739 = queryNorm
0.2540935 = fieldWeight in 334, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.125 = fieldNorm(doc=334)
0.02372606 = product of:
0.04745212 = sum of:
0.04745212 = weight(_text_:22 in 334) [ClassicSimilarity], result of:
0.04745212 = score(doc=334,freq=2.0), product of:
0.076654136 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.021889739 = queryNorm
0.61904186 = fieldWeight in 334, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=334)
0.5 = coord(1/2)
0.06451613 = coord(2/31)
- Language
- e
- Source
- Annual review of information science and technology. 22(1987), S.109-145
-
Belkin, N.J.; Croft, W.B.: Information filtering and information retrieval : two sides of the same coin? (1992)
0.00
0.001545297 = product of:
0.023952104 = sum of:
0.005996032 = weight(_text_:e in 6093) [ClassicSimilarity], result of:
0.005996032 = score(doc=6093,freq=2.0), product of:
0.031463653 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.021889739 = queryNorm
0.19057012 = fieldWeight in 6093, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.09375 = fieldNorm(doc=6093)
0.017956072 = product of:
0.035912145 = sum of:
0.035912145 = weight(_text_:29 in 6093) [ClassicSimilarity], result of:
0.035912145 = score(doc=6093,freq=2.0), product of:
0.07700126 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.021889739 = queryNorm
0.46638384 = fieldWeight in 6093, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.09375 = fieldNorm(doc=6093)
0.5 = coord(1/2)
0.06451613 = coord(2/31)
- Language
- e
- Source
- Communications of the Association for Computing Machinery. 35(1992) no.12, S.29-38
-
Murdock, V.; Kelly, D.; Croft, W.B.; Belkin, N.J.; Yuan, X.: Identifying and improving retrieval for procedural questions (2007)
0.00
9.6710195E-5 = product of:
0.002998016 = sum of:
0.002998016 = weight(_text_:e in 902) [ClassicSimilarity], result of:
0.002998016 = score(doc=902,freq=2.0), product of:
0.031463653 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.021889739 = queryNorm
0.09528506 = fieldWeight in 902, 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=902)
0.032258064 = coord(1/31)
- Language
- e