-
Leydesdorff, L.; Shin, J.C.: How to evaluate universities in terms of their relative citation impacts : fractional counting of citations and the normalization of differences among disciplines (2011)
0.01
0.0050697834 = product of:
0.025348917 = sum of:
0.025348917 = product of:
0.050697833 = sum of:
0.050697833 = weight(_text_:l in 4466) [ClassicSimilarity], result of:
0.050697833 = score(doc=4466,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.30739886 = fieldWeight in 4466, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=4466)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Salah, A.A.A.: Maps on the basis of the Arts & Humanities Citation Index : the journals Leonardo and Art Journal versus "digital humanities" as a topic (2010)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 3436) [ClassicSimilarity], result of:
0.04345528 = score(doc=3436,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 3436, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3436)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Zhou, P.; Su, X.; Leydesdorff, L.: ¬A comparative study on communication structures of Chinese journals in the social sciences (2010)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 3580) [ClassicSimilarity], result of:
0.04345528 = score(doc=3580,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 3580, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3580)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Persson, O.: Mapping the geography of science : distribution patterns and networks of relations among cities and institutes (2010)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 3704) [ClassicSimilarity], result of:
0.04345528 = score(doc=3704,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 3704, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3704)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Rafols, I.; Porter, A.L.; Leydesdorff, L.: Science overlay maps : a new tool for research policy and library management (2010)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 3987) [ClassicSimilarity], result of:
0.04345528 = score(doc=3987,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 3987, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3987)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.: ¬The communication of meaning and the structuration of expectations : Giddens' "structuration theory" and Luhmann's "self-organization" (2010)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 4004) [ClassicSimilarity], result of:
0.04345528 = score(doc=4004,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 4004, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=4004)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Opthof, T.: Scopus's source normalized impact per paper (SNIP) versus a journal impact factor based on fractional counting of citations (2010)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 4107) [ClassicSimilarity], result of:
0.04345528 = score(doc=4107,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 4107, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=4107)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Rafols, I.: Local emergence and global diffusion of research technologies : an exploration of patterns of network formation (2011)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 4445) [ClassicSimilarity], result of:
0.04345528 = score(doc=4445,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 4445, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=4445)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Rotolo, D.; Rafols, I.: Bibliometric perspectives on medical innovation using the medical subject headings of PubMed (2012)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 494) [ClassicSimilarity], result of:
0.04345528 = score(doc=494,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 494, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=494)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Opthof, T.: Citation analysis with medical subject Headings (MeSH) using the Web of Knowledge : a new routine (2013)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 943) [ClassicSimilarity], result of:
0.04345528 = score(doc=943,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 943, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=943)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Strand, Oe.: ¬The Swedish system of innovation : regional synergies in a knowledge-based economy (2013)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 1047) [ClassicSimilarity], result of:
0.04345528 = score(doc=1047,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 1047, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=1047)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Goldstone, R.L.: Interdisciplinarity at the journal and specialty level : the changing knowledge bases of the journal cognitive science (2014)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 1187) [ClassicSimilarity], result of:
0.04345528 = score(doc=1187,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 1187, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=1187)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Rotolo, D.; Leydesdorff, L.: Matching Medline/PubMed data with Web of Science: A routine in R language (2015)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 2224) [ClassicSimilarity], result of:
0.04345528 = score(doc=2224,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 2224, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=2224)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Heimeriks, G.; Rotolo, D.: Journal portfolio analysis for countries, cities, and organizations : maps and comparisons (2016)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 2781) [ClassicSimilarity], result of:
0.04345528 = score(doc=2781,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 2781, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=2781)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Zhou, Q.; Leydesdorff, L.: ¬The normalization of occurrence and co-occurrence matrices in bibliometrics using Cosine similarities and Ochiai coefficients (2016)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 3161) [ClassicSimilarity], result of:
0.04345528 = score(doc=3161,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 3161, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3161)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Rotolo, D.; Rafols, I.; Hopkins, M.M.; Leydesdorff, L.: Strategic intelligence on emerging technologies : scientometric overlay mapping (2017)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 3322) [ClassicSimilarity], result of:
0.04345528 = score(doc=3322,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 3322, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3322)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Comins, J.A.; Leydesdorff, L.: Identification of long-term concept-symbols among citations : do common intellectual histories structure citation behavior? (2017)
0.00
0.0043455283 = product of:
0.02172764 = sum of:
0.02172764 = product of:
0.04345528 = sum of:
0.04345528 = weight(_text_:l in 3599) [ClassicSimilarity], result of:
0.04345528 = score(doc=3599,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.26348472 = fieldWeight in 3599, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=3599)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Moya-Anegón, F.de; Guerrero-Bote, V.P.: Journal maps on the basis of Scopus data : a comparison with the Journal Citation Reports of the ISI (2010)
0.00
0.0036212734 = product of:
0.018106367 = sum of:
0.018106367 = product of:
0.036212735 = sum of:
0.036212735 = weight(_text_:l in 3335) [ClassicSimilarity], result of:
0.036212735 = score(doc=3335,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.2195706 = fieldWeight in 3335, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=3335)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Leydesdorff, L.; Hammarfelt, B.: ¬The structure of the Arts & Humanities Citation Index : a mapping on the basis of aggregated citations among 1,157 journals (2011)
0.00
0.0036212734 = product of:
0.018106367 = sum of:
0.018106367 = product of:
0.036212735 = sum of:
0.036212735 = weight(_text_:l in 4941) [ClassicSimilarity], result of:
0.036212735 = score(doc=4941,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.2195706 = fieldWeight in 4941, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=4941)
0.5 = coord(1/2)
0.2 = coord(1/5)
-
Shelton, R.D.; Leydesdorff, L.: Publish or patent : bibliometric evidence for empirical trade-offs in national funding strategies (2012)
0.00
0.0036212734 = product of:
0.018106367 = sum of:
0.018106367 = product of:
0.036212735 = sum of:
0.036212735 = weight(_text_:l in 70) [ClassicSimilarity], result of:
0.036212735 = score(doc=70,freq=2.0), product of:
0.16492525 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.041494254 = queryNorm
0.2195706 = fieldWeight in 70, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=70)
0.5 = coord(1/2)
0.2 = coord(1/5)