-
Liu, X.; Croft, W.B.: Cluster-based retrieval using language models (2004)
0.03
0.026756238 = product of:
0.053512476 = sum of:
0.053512476 = product of:
0.10702495 = sum of:
0.10702495 = weight(_text_:x in 4115) [ClassicSimilarity], result of:
0.10702495 = score(doc=4115,freq=2.0), product of:
0.19116588 = queryWeight, product of:
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.045271195 = queryNorm
0.55985385 = fieldWeight in 4115, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.09375 = fieldNorm(doc=4115)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Belkin, N.J.; Croft, W.B.: Retrieval techniques (1987)
0.02
0.024534488 = product of:
0.049068976 = sum of:
0.049068976 = product of:
0.09813795 = sum of:
0.09813795 = weight(_text_:22 in 334) [ClassicSimilarity], result of:
0.09813795 = score(doc=334,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = 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)
0.5 = coord(1/2)
- Source
- Annual review of information science and technology. 22(1987), S.109-145
-
Allan, J.; Callan, J.P.; Croft, W.B.; Ballesteros, L.; Broglio, J.; Xu, J.; Shu, H.: INQUERY at TREC-5 (1997)
0.02
0.015334055 = product of:
0.03066811 = sum of:
0.03066811 = product of:
0.06133622 = sum of:
0.06133622 = weight(_text_:22 in 3103) [ClassicSimilarity], result of:
0.06133622 = score(doc=3103,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = queryNorm
0.38690117 = fieldWeight in 3103, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=3103)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 27. 2.1999 20:55:22
-
Murdock, V.; Kelly, D.; Croft, W.B.; Belkin, N.J.; Yuan, X.: Identifying and improving retrieval for procedural questions (2007)
0.01
0.013378119 = product of:
0.026756238 = sum of:
0.026756238 = product of:
0.053512476 = sum of:
0.053512476 = weight(_text_:x in 902) [ClassicSimilarity], result of:
0.053512476 = score(doc=902,freq=2.0), product of:
0.19116588 = queryWeight, product of:
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.045271195 = queryNorm
0.27992693 = fieldWeight in 902, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.046875 = fieldNorm(doc=902)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Xiaoyan Li, X.; Croft, W.B.: ¬An information-pattern-based approach to novelty detection (2008)
0.01
0.013378119 = product of:
0.026756238 = sum of:
0.026756238 = product of:
0.053512476 = sum of:
0.053512476 = weight(_text_:x in 2080) [ClassicSimilarity], result of:
0.053512476 = score(doc=2080,freq=2.0), product of:
0.19116588 = queryWeight, product of:
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.045271195 = queryNorm
0.27992693 = fieldWeight in 2080, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.046875 = fieldNorm(doc=2080)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Liu, X.; Croft, W.B.: Statistical language modeling for information retrieval (2004)
0.01
0.011148433 = product of:
0.022296866 = sum of:
0.022296866 = product of:
0.044593733 = sum of:
0.044593733 = weight(_text_:x in 4277) [ClassicSimilarity], result of:
0.044593733 = score(doc=4277,freq=2.0), product of:
0.19116588 = queryWeight, product of:
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.045271195 = queryNorm
0.23327245 = fieldWeight in 4277, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.0390625 = fieldNorm(doc=4277)
0.5 = coord(1/2)
0.5 = coord(1/2)