-
Leydesdorff, L.: ¬The generation of aggregated journal-journal citation maps on the basis of the CD-ROM version of the Science Citation Index (1994)
0.02
0.017259631 = product of:
0.034519263 = sum of:
0.034519263 = product of:
0.069038525 = sum of:
0.069038525 = weight(_text_:56 in 8281) [ClassicSimilarity], result of:
0.069038525 = score(doc=8281,freq=2.0), product of:
0.21469334 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.051635534 = queryNorm
0.32156807 = fieldWeight in 8281, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0546875 = fieldNorm(doc=8281)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 20.10.2000 11:21:56
-
Leydesdorff, L.: Similarity measures, author cocitation Analysis, and information theory (2005)
0.02
0.017259631 = product of:
0.034519263 = sum of:
0.034519263 = product of:
0.069038525 = sum of:
0.069038525 = weight(_text_:56 in 3471) [ClassicSimilarity], result of:
0.069038525 = score(doc=3471,freq=2.0), product of:
0.21469334 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.051635534 = queryNorm
0.32156807 = fieldWeight in 3471, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0546875 = fieldNorm(doc=3471)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 56(2005) no.7, S.769-772
-
Marx, W.; Bornmann, L.; Barth, A.; Leydesdorff, L.: Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS) (2014)
0.02
0.017259631 = product of:
0.034519263 = sum of:
0.034519263 = product of:
0.069038525 = sum of:
0.069038525 = weight(_text_:56 in 1238) [ClassicSimilarity], result of:
0.069038525 = score(doc=1238,freq=2.0), product of:
0.21469334 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.051635534 = queryNorm
0.32156807 = fieldWeight in 1238, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0546875 = fieldNorm(doc=1238)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 18. 3.2014 18:56:54
-
Leydesdorff, L.; Bihui, J.: Mapping the Chinese Science Citation Database in terms of aggregated journal-journal citation relations (2005)
0.01
0.01479397 = product of:
0.02958794 = sum of:
0.02958794 = product of:
0.05917588 = sum of:
0.05917588 = weight(_text_:56 in 4813) [ClassicSimilarity], result of:
0.05917588 = score(doc=4813,freq=2.0), product of:
0.21469334 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.051635534 = queryNorm
0.2756298 = fieldWeight in 4813, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.046875 = fieldNorm(doc=4813)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and Technology. 56(2005) no.14, S.1469-1479
-
Leydesdorff, L.; Moya-Anegón, F. de; Nooy, W. de: Aggregated journal-journal citation relations in scopus and web of science matched and compared in terms of networks, maps, and interactive overlays (2016)
0.01
0.012328308 = product of:
0.024656616 = sum of:
0.024656616 = product of:
0.049313232 = sum of:
0.049313232 = weight(_text_:56 in 3090) [ClassicSimilarity], result of:
0.049313232 = score(doc=3090,freq=2.0), product of:
0.21469334 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.051635534 = queryNorm
0.22969149 = fieldWeight in 3090, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0390625 = fieldNorm(doc=3090)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 24. 8.2016 17:56:46
-
Leydesdorff, L.; Nooy, W. de: Can "hot spots" in the sciences be mapped using the dynamics of aggregated journal-journal citation relations (2017)
0.01
0.012328308 = product of:
0.024656616 = sum of:
0.024656616 = product of:
0.049313232 = sum of:
0.049313232 = weight(_text_:56 in 3328) [ClassicSimilarity], result of:
0.049313232 = score(doc=3328,freq=2.0), product of:
0.21469334 = queryWeight, product of:
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.051635534 = queryNorm
0.22969149 = fieldWeight in 3328, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.1578603 = idf(docFreq=1879, maxDocs=44218)
0.0390625 = fieldNorm(doc=3328)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 16.11.2017 12:56:42
-
Leydesdorff, L.: ¬The construction and globalization of the knowledge base in inter-human communication systems (2003)
0.01
0.010493852 = product of:
0.020987704 = sum of:
0.020987704 = product of:
0.04197541 = sum of:
0.04197541 = weight(_text_:22 in 1621) [ClassicSimilarity], result of:
0.04197541 = score(doc=1621,freq=2.0), product of:
0.18081884 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051635534 = queryNorm
0.23214069 = fieldWeight in 1621, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=1621)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 5.2003 19:48:04
-
Leydesdorff, L.: Can networks of journal-journal citations be used as indicators of change in the social sciences? (2003)
0.01
0.010493852 = product of:
0.020987704 = sum of:
0.020987704 = product of:
0.04197541 = sum of:
0.04197541 = weight(_text_:22 in 4460) [ClassicSimilarity], result of:
0.04197541 = score(doc=4460,freq=2.0), product of:
0.18081884 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051635534 = queryNorm
0.23214069 = fieldWeight in 4460, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4460)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 6.11.2005 19:02:22
-
Leydesdorff, L.; Sun, Y.: National and international dimensions of the Triple Helix in Japan : university-industry-government versus international coauthorship relations (2009)
0.01
0.010493852 = product of:
0.020987704 = sum of:
0.020987704 = product of:
0.04197541 = sum of:
0.04197541 = weight(_text_:22 in 2761) [ClassicSimilarity], result of:
0.04197541 = score(doc=2761,freq=2.0), product of:
0.18081884 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051635534 = queryNorm
0.23214069 = fieldWeight in 2761, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2761)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2009 19:07:20
-
Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019)
0.01
0.010493852 = product of:
0.020987704 = sum of:
0.020987704 = product of:
0.04197541 = sum of:
0.04197541 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
0.04197541 = score(doc=4681,freq=2.0), product of:
0.18081884 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051635534 = queryNorm
0.23214069 = fieldWeight in 4681, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=4681)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 8. 1.2019 18:22:45
-
Leydesdorff, L.; Bornmann, L.: How fractional counting of citations affects the impact factor : normalization in terms of differences in citation potentials among fields of science (2011)
0.01
0.008744878 = product of:
0.017489756 = sum of:
0.017489756 = product of:
0.03497951 = sum of:
0.03497951 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
0.03497951 = score(doc=4186,freq=2.0), product of:
0.18081884 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051635534 = queryNorm
0.19345059 = fieldWeight in 4186, 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=4186)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 1.2011 12:51:07
-
Hellsten, I.; Leydesdorff, L.: ¬The construction of interdisciplinarity : the development of the knowledge base and programmatic focus of the journal Climatic Change, 1977-2013 (2016)
0.01
0.008744878 = product of:
0.017489756 = sum of:
0.017489756 = product of:
0.03497951 = sum of:
0.03497951 = weight(_text_:22 in 3089) [ClassicSimilarity], result of:
0.03497951 = score(doc=3089,freq=2.0), product of:
0.18081884 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051635534 = queryNorm
0.19345059 = fieldWeight in 3089, 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=3089)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 24. 8.2016 17:53:22
-
Leydesdorff, L.; Johnson, M.W.; Ivanova, I.: Toward a calculus of redundancy : signification, codification, and anticipation in cultural evolution (2018)
0.01
0.008744878 = product of:
0.017489756 = sum of:
0.017489756 = product of:
0.03497951 = sum of:
0.03497951 = weight(_text_:22 in 4463) [ClassicSimilarity], result of:
0.03497951 = score(doc=4463,freq=2.0), product of:
0.18081884 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.051635534 = queryNorm
0.19345059 = fieldWeight in 4463, 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=4463)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 29. 9.2018 11:22:09