-
Smeaton, A.F.; Rijsbergen, C.J. van: ¬The retrieval effects of query expansion on a feedback document retrieval system (1983)
0.02
0.021467676 = product of:
0.042935353 = sum of:
0.042935353 = product of:
0.085870706 = sum of:
0.085870706 = weight(_text_:22 in 2134) [ClassicSimilarity], result of:
0.085870706 = score(doc=2134,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = queryNorm
0.5416616 = fieldWeight in 2134, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.109375 = fieldNorm(doc=2134)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 30. 3.2001 13:32:22
-
Zhang, W.; Yoshida, T.; Tang, X.: ¬A comparative study of TF*IDF, LSI and multi-words for text classification (2011)
0.01
0.013378119 = product of:
0.026756238 = sum of:
0.026756238 = product of:
0.053512476 = sum of:
0.053512476 = weight(_text_:x in 1165) [ClassicSimilarity], result of:
0.053512476 = score(doc=1165,freq=2.0), product of:
0.19116588 = queryWeight, product of:
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.045271195 = queryNorm
0.27992693 = fieldWeight in 1165, 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=1165)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Liu, X.; Zheng, W.; Fang, H.: ¬An exploration of ranking models and feedback method for related entity finding (2013)
0.01
0.011148433 = product of:
0.022296866 = sum of:
0.022296866 = product of:
0.044593733 = sum of:
0.044593733 = weight(_text_:x in 2714) [ClassicSimilarity], result of:
0.044593733 = score(doc=2714,freq=2.0), product of:
0.19116588 = queryWeight, product of:
4.2226825 = idf(docFreq=1761, maxDocs=44218)
0.045271195 = queryNorm
0.23327245 = fieldWeight in 2714, 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=2714)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Chang, C.-H.; Hsu, C.-C.: Integrating query expansion and conceptual relevance feedback for personalized Web information retrieval (1998)
0.01
0.010733838 = product of:
0.021467676 = sum of:
0.021467676 = product of:
0.042935353 = sum of:
0.042935353 = weight(_text_:22 in 1319) [ClassicSimilarity], result of:
0.042935353 = score(doc=1319,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = queryNorm
0.2708308 = fieldWeight in 1319, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0546875 = fieldNorm(doc=1319)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 1. 8.1996 22:08:06
-
Klas, C.-P.; Fuhr, N.; Schaefer, A.: Evaluating strategic support for information access in the DAFFODIL system (2004)
0.01
0.009200432 = product of:
0.018400865 = sum of:
0.018400865 = product of:
0.03680173 = sum of:
0.03680173 = weight(_text_:22 in 2419) [ClassicSimilarity], result of:
0.03680173 = score(doc=2419,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = queryNorm
0.23214069 = fieldWeight in 2419, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2419)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 16.11.2008 16:22:48
-
Efthimiadis, E.N.: User choices : a new yardstick for the evaluation of ranking algorithms for interactive query expansion (1995)
0.01
0.0076670274 = product of:
0.015334055 = sum of:
0.015334055 = product of:
0.03066811 = sum of:
0.03066811 = weight(_text_:22 in 5697) [ClassicSimilarity], result of:
0.03066811 = score(doc=5697,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = queryNorm
0.19345059 = fieldWeight in 5697, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=5697)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 2.1996 13:14:10
-
Song, D.; Bruza, P.D.: Towards context sensitive information inference (2003)
0.01
0.0076670274 = product of:
0.015334055 = sum of:
0.015334055 = product of:
0.03066811 = sum of:
0.03066811 = weight(_text_:22 in 1428) [ClassicSimilarity], result of:
0.03066811 = score(doc=1428,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = queryNorm
0.19345059 = fieldWeight in 1428, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=1428)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2003 19:35:46
-
Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006)
0.01
0.0076670274 = product of:
0.015334055 = sum of:
0.015334055 = product of:
0.03066811 = sum of:
0.03066811 = weight(_text_:22 in 56) [ClassicSimilarity], result of:
0.03066811 = score(doc=56,freq=2.0), product of:
0.15853201 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045271195 = queryNorm
0.19345059 = fieldWeight in 56, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=56)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 16:32:43
