Vaughan, L.; Chen, Y.: Data mining from web search queries : a comparison of Google trends and Baidu index (2015)
0.01
0.005004447 = product of:
0.015013341 = sum of:
0.015013341 = product of:
0.030026682 = sum of:
0.030026682 = weight(_text_:22 in 1605) [ClassicSimilarity], result of:
0.030026682 = score(doc=1605,freq=2.0), product of:
0.15521629 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044324342 = queryNorm
0.19345059 = fieldWeight in 1605, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0390625 = fieldNorm(doc=1605)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Source
- Journal of the Association for Information Science and Technology. 66(2015) no.1, S.13-22