Vilar, P.; Zumer, M.: Perceptions and importance of user friendliness of IR systems according to users' individual characteristics and academic discipline (2008)
0.01
0.0125975935 = product of:
0.025195187 = sum of:
0.025195187 = product of:
0.050390374 = sum of:
0.050390374 = weight(_text_:2007 in 2378) [ClassicSimilarity], result of:
0.050390374 = score(doc=2378,freq=2.0), product of:
0.20205033 = queryWeight, product of:
4.514535 = idf(docFreq=1315, maxDocs=44218)
0.044755515 = queryNorm
0.24939516 = fieldWeight in 2378, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.514535 = idf(docFreq=1315, maxDocs=44218)
0.0390625 = fieldNorm(doc=2378)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 59(2008) no.12, S.1995-2007