-
Rafols, I.; Porter, A.L.; Leydesdorff, L.: Science overlay maps : a new tool for research policy and library management (2010)
0.00
9.0241426E-4 = product of:
0.0018048285 = sum of:
0.0018048285 = product of:
0.003609657 = sum of:
0.003609657 = weight(_text_:s in 3987) [ClassicSimilarity], result of:
0.003609657 = score(doc=3987,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.072074346 = fieldWeight in 3987, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=3987)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 61(2010) no.9, S.1871-1887
-
Leydesdorff, L.; Rafols, I.: Local emergence and global diffusion of research technologies : an exploration of patterns of network formation (2011)
0.00
9.0241426E-4 = product of:
0.0018048285 = sum of:
0.0018048285 = product of:
0.003609657 = sum of:
0.003609657 = weight(_text_:s in 4445) [ClassicSimilarity], result of:
0.003609657 = score(doc=4445,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.072074346 = fieldWeight in 4445, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=4445)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 62(2011) no.5, S.846-860
-
Leydesdorff, L.; Rotolo, D.; Rafols, I.: Bibliometric perspectives on medical innovation using the medical subject headings of PubMed (2012)
0.00
9.0241426E-4 = product of:
0.0018048285 = sum of:
0.0018048285 = product of:
0.003609657 = sum of:
0.003609657 = weight(_text_:s in 494) [ClassicSimilarity], result of:
0.003609657 = score(doc=494,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.072074346 = fieldWeight in 494, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=494)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 63(2012) no.11, S.2239-2253
-
Rotolo, D.; Rafols, I.; Hopkins, M.M.; Leydesdorff, L.: Strategic intelligence on emerging technologies : scientometric overlay mapping (2017)
0.00
9.0241426E-4 = product of:
0.0018048285 = sum of:
0.0018048285 = product of:
0.003609657 = sum of:
0.003609657 = weight(_text_:s in 3322) [ClassicSimilarity], result of:
0.003609657 = score(doc=3322,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.072074346 = fieldWeight in 3322, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046875 = fieldNorm(doc=3322)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the Association for Information Science and Technology. 68(2017) no.1, S.214-233
-
Leydesdorff, L.; Rafols, I.; Chen, C.: Interactive overlays of journals and the measurement of interdisciplinarity on the basis of aggregated journal-journal citations (2013)
0.00
7.520119E-4 = product of:
0.0015040238 = sum of:
0.0015040238 = product of:
0.0030080476 = sum of:
0.0030080476 = weight(_text_:s in 1131) [ClassicSimilarity], result of:
0.0030080476 = score(doc=1131,freq=2.0), product of:
0.05008241 = queryWeight, product of:
1.0872376 = idf(docFreq=40523, maxDocs=44218)
0.046063907 = queryNorm
0.060061958 = fieldWeight in 1131, 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=1131)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 64(2013) no.12, S.2573-2586