Li, X.; Thelwall, M.; Kousha, K.: ¬The role of arXiv, RePEc, SSRN and PMC in formal scholarly communication (2015)
0.01
0.014651294 = product of:
0.029302588 = sum of:
0.009801455 = weight(_text_:information in 2593) [ClassicSimilarity], result of:
0.009801455 = score(doc=2593,freq=2.0), product of:
0.10106951 = queryWeight, product of:
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.057573788 = queryNorm
0.09697737 = fieldWeight in 2593, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.7554779 = idf(docFreq=20772, maxDocs=44218)
0.0390625 = fieldNorm(doc=2593)
0.019501133 = product of:
0.039002266 = sum of:
0.039002266 = weight(_text_:22 in 2593) [ClassicSimilarity], result of:
0.039002266 = score(doc=2593,freq=2.0), product of:
0.20161359 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.057573788 = 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)
0.5 = coord(2/4)
- Date
- 20. 1.2015 18:30:22
- Source
- Aslib journal of information management. 67(2015) no.6, S.614-635