Shiri, A.A.; Revie, C.: Query expansion behavior within a thesaurus-enhanced search environment : a user-centered evaluation (2006)
0.00
0.0013677838 = product of:
0.005471135 = sum of:
0.005471135 = weight(_text_:information in 56) [ClassicSimilarity], result of:
0.005471135 = score(doc=56,freq=2.0), product of:
0.056416616 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.03213747 = queryNorm
0.09697737 = fieldWeight in 56, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=56)
0.25 = coord(1/4)
- Source
- Journal of the American Society for Information Science and Technology. 57(2006) no.4, S.462-478