Li, X.; Thelwall, M.; Kousha, K.: ¬The role of arXiv, RePEc, SSRN and PMC in formal scholarly communication (2015)
0.03
0.032878954 = product of:
0.06575791 = sum of:
0.06575791 = sum of:
0.031998128 = weight(_text_:k in 2593) [ClassicSimilarity], result of:
0.031998128 = score(doc=2593,freq=2.0), product of:
0.16225883 = queryWeight, product of:
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.04545348 = queryNorm
0.19720423 = fieldWeight in 2593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.569778 = idf(docFreq=3384, maxDocs=44218)
0.0390625 = fieldNorm(doc=2593)
0.0029681858 = weight(_text_:s in 2593) [ClassicSimilarity], result of:
0.0029681858 = score(doc=2593,freq=2.0), product of:
0.049418733 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.04545348 = queryNorm
0.060061958 = fieldWeight in 2593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.0390625 = fieldNorm(doc=2593)
0.030791596 = weight(_text_:22 in 2593) [ClassicSimilarity], result of:
0.030791596 = score(doc=2593,freq=2.0), product of:
0.15917034 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.04545348 = queryNorm
0.19345059 = fieldWeight in 2593, 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=2593)
0.5 = coord(1/2)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 67(2015) no.6, S.614-635
