Song, J.; Huang, Y.; Qi, X.; Li, Y.; Li, F.; Fu, K.; Huang, T.: Discovering hierarchical topic evolution in time-stamped documents (2016)
0.00
0.0016645187 = product of:
0.006658075 = sum of:
0.006658075 = product of:
0.019974224 = sum of:
0.019974224 = weight(_text_:science in 2853) [ClassicSimilarity], result of:
0.019974224 = score(doc=2853,freq=2.0), product of:
0.11438741 = queryWeight, product of:
2.6341193 = idf(docFreq=8627, maxDocs=44218)
0.043425296 = queryNorm
0.17461908 = fieldWeight in 2853, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.6341193 = idf(docFreq=8627, maxDocs=44218)
0.046875 = fieldNorm(doc=2853)
0.33333334 = coord(1/3)
0.25 = coord(1/4)
- Source
- Journal of the Association for Information Science and Technology. 67(2016) no.4, S.915-927
