Chan, H.C.; Tan, B.C.Y.; Wei, K.L.: Three important determinants of user performance for database retrieval (1999)
0.10
0.1016664 = product of:
0.2033328 = sum of:
0.2033328 = product of:
0.4066656 = sum of:
0.4066656 = weight(_text_:h.c in 6828) [ClassicSimilarity], result of:
0.4066656 = score(doc=6828,freq=2.0), product of:
0.3876382 = queryWeight, product of:
7.912698 = idf(docFreq=43, maxDocs=44218)
0.048989385 = queryNorm
1.0490854 = fieldWeight in 6828, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.912698 = idf(docFreq=43, maxDocs=44218)
0.09375 = fieldNorm(doc=6828)
0.5 = coord(1/2)
0.5 = coord(1/2)