-
Gauch, S.; Wang, J.: Corpus analysis for TREC 5 query expansion (1997)
0.00
0.0020964143 = product of:
0.010482071 = sum of:
0.010482071 = weight(_text_:e in 5800) [ClassicSimilarity], result of:
0.010482071 = score(doc=5800,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.19057012 = fieldWeight in 5800, 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=5800)
0.2 = coord(1/5)
- Language
- e
-
Smeaton, A.F.; Kelledy, L.; O'Donnell, R.: TREC-4 experiments at Dublin City University : thresholding posting lists, query expansion with WordNet and POS tagging of Spanish (1996)
0.00
0.001747012 = product of:
0.00873506 = sum of:
0.00873506 = weight(_text_:e in 7000) [ClassicSimilarity], result of:
0.00873506 = score(doc=7000,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.15880844 = fieldWeight in 7000, 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=7000)
0.2 = coord(1/5)
- Language
- e
-
Ekmekcioglu, F.C.; Robertson, A.M.; Willett, P.: Effectiveness of query expansion in ranked-output document retrieval systems (1992)
0.00
0.0013976095 = product of:
0.006988047 = sum of:
0.006988047 = weight(_text_:e in 5689) [ClassicSimilarity], result of:
0.006988047 = score(doc=5689,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.12704675 = fieldWeight in 5689, 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=5689)
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
-
Chen, H.; Martinez, J.; Kirchhoff, A.; Ng, T.D.; Schatz, B.R.: Alleviating search uncertainty through concept associations : automatic indexing, co-occurence analysis, and parallel computing (1998)
0.00
0.0010482072 = product of:
0.0052410355 = sum of:
0.0052410355 = weight(_text_:e in 5202) [ClassicSimilarity], result of:
0.0052410355 = score(doc=5202,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.09528506 = fieldWeight in 5202, 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=5202)
0.2 = coord(1/5)
- Language
- e
-
Kwok, K.L.: ¬A network approach to probabilistic information retrieval (1995)
0.00
0.0010482072 = product of:
0.0052410355 = sum of:
0.0052410355 = weight(_text_:e in 5696) [ClassicSimilarity], result of:
0.0052410355 = score(doc=5696,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.09528506 = fieldWeight in 5696, 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=5696)
0.2 = coord(1/5)
- Language
- e
-
Buckley, C.; Allan, J.; Salton, G.: Automatic routing and retrieval using Smart : TREC-2 (1995)
0.00
0.0010482072 = product of:
0.0052410355 = sum of:
0.0052410355 = weight(_text_:e in 5699) [ClassicSimilarity], result of:
0.0052410355 = score(doc=5699,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.09528506 = fieldWeight in 5699, 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=5699)
0.2 = coord(1/5)
- Language
- e
-
Colace, F.; Santo, M. de; Greco, L.; Napoletano, P.: Improving relevance feedback-based query expansion by the use of a weighted word pairs approach (2015)
0.00
0.0010482072 = product of:
0.0052410355 = sum of:
0.0052410355 = weight(_text_:e in 2263) [ClassicSimilarity], result of:
0.0052410355 = score(doc=2263,freq=2.0), product of:
0.055003747 = queryWeight, product of:
1.43737 = idf(docFreq=28552, maxDocs=44218)
0.03826694 = queryNorm
0.09528506 = fieldWeight in 2263, 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=2263)
0.2 = coord(1/5)
- Language
- e