Li, X.; Thelwall, M.; Kousha, K.: ¬The role of arXiv, RePEc, SSRN and PMC in formal scholarly communication (2015)
0.02
0.023357583 = product of:
0.046715166 = sum of:
0.046715166 = sum of:
0.015674612 = weight(_text_:m in 2593) [ClassicSimilarity], result of:
0.015674612 = score(doc=2593,freq=2.0), product of:
0.114023164 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.045820985 = queryNorm
0.13746867 = fieldWeight in 2593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0390625 = fieldNorm(doc=2593)
0.031040555 = weight(_text_:22 in 2593) [ClassicSimilarity], result of:
0.031040555 = score(doc=2593,freq=2.0), product of:
0.16045728 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.045820985 = 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
