Xu, Y.; Liu, C.: ¬The dynamics of interactive information retrieval : part II: an empirical study from the activity theory perspective (2007)
0.01
0.0075771073 = product of:
0.037885536 = sum of:
0.037885536 = weight(_text_:7 in 333) [ClassicSimilarity], result of:
0.037885536 = score(doc=333,freq=2.0), product of:
0.17251469 = queryWeight, product of:
3.3127685 = idf(docFreq=4376, maxDocs=44218)
0.052075688 = queryNorm
0.21960759 = fieldWeight in 333, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.3127685 = idf(docFreq=4376, maxDocs=44218)
0.046875 = fieldNorm(doc=333)
0.2 = coord(1/5)
- Source
- Journal of the American Society for Information Science and Technology. 58(2007) no.7, S.987-998
