Tenopir, C.; Wang, P.; Zhang, Y.; Simmons, B.; Pollard, R.: Academic users' interactions with ScienceDirect in search tasks : affective and cognitive behaviors (2008)
0.01
0.0062503214 = product of:
0.012500643 = sum of:
0.012500643 = product of:
0.025001286 = sum of:
0.025001286 = weight(_text_:r in 2027) [ClassicSimilarity], result of:
0.025001286 = score(doc=2027,freq=2.0), product of:
0.13671792 = queryWeight, product of:
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.041301284 = queryNorm
0.18286766 = fieldWeight in 2027, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3102584 = idf(docFreq=4387, maxDocs=44218)
0.0390625 = fieldNorm(doc=2027)
0.5 = coord(1/2)
0.5 = coord(1/2)