-
Leydesdorff, L.; Zhou, P.; Bornmann, L.: How can journal impact factors be normalized across fields of science? : An assessment in terms of percentile ranks and fractional counts (2013)
0.01
0.013997713 = product of:
0.027995426 = sum of:
0.027995426 = product of:
0.055990852 = sum of:
0.055990852 = weight(_text_:l in 532) [ClassicSimilarity], result of:
0.055990852 = score(doc=532,freq=4.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.31051973 = fieldWeight in 532, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=532)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Bornmann, L.; Wagner, C.; Leydesdorff, L.: BRICS countries and scientific excellence : a bibliometric analysis of most frequently cited papers (2015)
0.01
0.013997713 = product of:
0.027995426 = sum of:
0.027995426 = product of:
0.055990852 = sum of:
0.055990852 = weight(_text_:l in 2047) [ClassicSimilarity], result of:
0.055990852 = score(doc=2047,freq=4.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.31051973 = fieldWeight in 2047, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=2047)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Bauer, J.; Leydesdorff, L.; Bornmann, L.: Highly cited papers in Library and Information Science (LIS) : authors, institutions, and network structures (2016)
0.01
0.013997713 = product of:
0.027995426 = sum of:
0.027995426 = product of:
0.055990852 = sum of:
0.055990852 = weight(_text_:l in 3231) [ClassicSimilarity], result of:
0.055990852 = score(doc=3231,freq=4.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.31051973 = fieldWeight in 3231, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=3231)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.; Bornmann, L.; Mingers, J.: Statistical significance and effect sizes of differences among research universities at the level of nations and worldwide based on the Leiden rankings (2019)
0.01
0.013997713 = product of:
0.027995426 = sum of:
0.027995426 = product of:
0.055990852 = sum of:
0.055990852 = weight(_text_:l in 5225) [ClassicSimilarity], result of:
0.055990852 = score(doc=5225,freq=4.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.31051973 = fieldWeight in 5225, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0390625 = fieldNorm(doc=5225)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: ¬The generation of aggregated journal-journal citation maps on the basis of the CD-ROM version of the Science Citation Index (1994)
0.01
0.013857029 = product of:
0.027714059 = sum of:
0.027714059 = product of:
0.055428118 = sum of:
0.055428118 = weight(_text_:l in 8281) [ClassicSimilarity], result of:
0.055428118 = score(doc=8281,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.30739886 = fieldWeight in 8281, 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=8281)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: Theories of citation? (1999)
0.01
0.013857029 = product of:
0.027714059 = sum of:
0.027714059 = product of:
0.055428118 = sum of:
0.055428118 = weight(_text_:l in 5130) [ClassicSimilarity], result of:
0.055428118 = score(doc=5130,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.30739886 = fieldWeight in 5130, 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=5130)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: Dynamic and evolutionary updates of classificatory schemes in scientific journal structures (2002)
0.01
0.013857029 = product of:
0.027714059 = sum of:
0.027714059 = product of:
0.055428118 = sum of:
0.055428118 = weight(_text_:l in 1249) [ClassicSimilarity], result of:
0.055428118 = score(doc=1249,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.30739886 = fieldWeight in 1249, 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=1249)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: Similarity measures, author cocitation Analysis, and information theory (2005)
0.01
0.013857029 = product of:
0.027714059 = sum of:
0.027714059 = product of:
0.055428118 = sum of:
0.055428118 = weight(_text_:l in 3471) [ClassicSimilarity], result of:
0.055428118 = score(doc=3471,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.30739886 = fieldWeight in 3471, 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=3471)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.; Zhou, P.: Co-word analysis using the Chinese character set (2008)
0.01
0.013857029 = product of:
0.027714059 = sum of:
0.027714059 = product of:
0.055428118 = sum of:
0.055428118 = weight(_text_:l in 1970) [ClassicSimilarity], result of:
0.055428118 = score(doc=1970,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.30739886 = fieldWeight in 1970, 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=1970)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
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
0.013857029 = product of:
0.027714059 = sum of:
0.027714059 = product of:
0.055428118 = sum of:
0.055428118 = weight(_text_:l in 4466) [ClassicSimilarity], result of:
0.055428118 = score(doc=4466,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = 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)
0.5 = coord(1/2)
-
Leydesdorff, L.: Why words and co-word cannot map the development of the science (1997)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 147) [ClassicSimilarity], result of:
0.04750981 = score(doc=147,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 147, 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=147)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: ¬A sociological theory of communication : the self-organization of the knowledge-based society (2001)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 184) [ClassicSimilarity], result of:
0.04750981 = score(doc=184,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 184, 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=184)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: ¬The university-industry knowledge relationship : analyzing patents and the science base of technologies (2004)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 2887) [ClassicSimilarity], result of:
0.04750981 = score(doc=2887,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 2887, 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=2887)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: Clusters and maps of science journals based on bi-connected graphs in Journal Citation Reports (2004)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 4427) [ClassicSimilarity], result of:
0.04750981 = score(doc=4427,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 4427, 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=4427)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.; Bihui, J.: Mapping the Chinese Science Citation Database in terms of aggregated journal-journal citation relations (2005)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 4813) [ClassicSimilarity], result of:
0.04750981 = score(doc=4813,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 4813, 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=4813)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: Can scientific journals be classified in terms of aggregated journal-journal citation relations using the Journal Citation Reports? (2006)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 5046) [ClassicSimilarity], result of:
0.04750981 = score(doc=5046,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 5046, 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=5046)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.; Bensman, S.: Classification and Powerlaws : the logarithmic transformation (2006)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 6007) [ClassicSimilarity], result of:
0.04750981 = score(doc=6007,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 6007, 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=6007)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Zhou, P.; Leydesdorff, L.: ¬A comparison between the China Scientific and Technical Papers and Citations Database and the Science Citation Index in terms of journal hierarchies and interjournal citation relations (2007)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 70) [ClassicSimilarity], result of:
0.04750981 = score(doc=70,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = 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)
0.046875 = fieldNorm(doc=70)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: Betweenness centrality as an indicator of the interdisciplinarity of scientific journals (2007)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 453) [ClassicSimilarity], result of:
0.04750981 = score(doc=453,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 453, 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=453)
0.5 = coord(1/2)
0.5 = coord(1/2)
-
Leydesdorff, L.: On the normalization and visualization of author co-citation data : Salton's Cosine versus the Jaccard index (2008)
0.01
0.011877453 = product of:
0.023754906 = sum of:
0.023754906 = product of:
0.04750981 = sum of:
0.04750981 = weight(_text_:l in 1341) [ClassicSimilarity], result of:
0.04750981 = score(doc=1341,freq=2.0), product of:
0.18031335 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.045365814 = queryNorm
0.26348472 = fieldWeight in 1341, 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=1341)
0.5 = coord(1/2)
0.5 = coord(1/2)
