-
Leydesdorff, L.; Heimeriks, G.: ¬The self-organization of the European information society : the case of "biotechnology" (2001)
0.06
0.05669628 = product of:
0.11339256 = sum of:
0.038198393 = weight(_text_:l in 6524) [ClassicSimilarity], result of:
0.038198393 = score(doc=6524,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.2195706 = fieldWeight in 6524, 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=6524)
0.075194165 = weight(_text_:van in 6524) [ClassicSimilarity], result of:
0.075194165 = score(doc=6524,freq=2.0), product of:
0.24408463 = queryWeight, product of:
5.5765896 = idf(docFreq=454, maxDocs=44218)
0.043769516 = queryNorm
0.30806595 = fieldWeight in 6524, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
5.5765896 = idf(docFreq=454, maxDocs=44218)
0.0390625 = fieldNorm(doc=6524)
0.5 = coord(2/4)
- Footnote
- Vgl. auch die Stellungnahme von P. van den Besselaar: Empirical evidence of self-organization? in: JASIST 54(2003) no.1, S.87-90.
-
Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019)
0.04
0.04130766 = product of:
0.08261532 = sum of:
0.06482483 = weight(_text_:l in 4681) [ClassicSimilarity], result of:
0.06482483 = score(doc=4681,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.37262368 = fieldWeight in 4681, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=4681)
0.017790494 = product of:
0.03558099 = sum of:
0.03558099 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
0.03558099 = score(doc=4681,freq=2.0), product of:
0.15327339 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043769516 = 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(2/4)
- 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)
0.03
0.03442305 = product of:
0.0688461 = sum of:
0.054020684 = weight(_text_:l in 4186) [ClassicSimilarity], result of:
0.054020684 = score(doc=4186,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.31051973 = fieldWeight in 4186, 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=4186)
0.014825413 = product of:
0.029650826 = sum of:
0.029650826 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
0.029650826 = score(doc=4186,freq=2.0), product of:
0.15327339 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043769516 = 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(2/4)
- Date
- 22. 1.2011 12:51:07
-
Leydesdorff, L.: Can networks of journal-journal citations be used as indicators of change in the social sciences? (2003)
0.03
0.03181428 = product of:
0.06362856 = sum of:
0.04583807 = weight(_text_:l in 4460) [ClassicSimilarity], result of:
0.04583807 = score(doc=4460,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.26348472 = fieldWeight in 4460, 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=4460)
0.017790494 = product of:
0.03558099 = sum of:
0.03558099 = weight(_text_:22 in 4460) [ClassicSimilarity], result of:
0.03558099 = score(doc=4460,freq=2.0), product of:
0.15327339 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043769516 = 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(2/4)
- 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)
0.03
0.03181428 = product of:
0.06362856 = sum of:
0.04583807 = weight(_text_:l in 2761) [ClassicSimilarity], result of:
0.04583807 = score(doc=2761,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.26348472 = fieldWeight in 2761, 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=2761)
0.017790494 = product of:
0.03558099 = sum of:
0.03558099 = weight(_text_:22 in 2761) [ClassicSimilarity], result of:
0.03558099 = score(doc=2761,freq=2.0), product of:
0.15327339 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043769516 = 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(2/4)
- Date
- 22. 3.2009 19:07:20
-
Leydesdorff, L.: Accounting for the uncertainty in the evaluation of percentile ranks (2012)
0.02
0.022919035 = product of:
0.09167614 = sum of:
0.09167614 = weight(_text_:l in 447) [ClassicSimilarity], result of:
0.09167614 = score(doc=447,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.52696943 = fieldWeight in 447, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.09375 = fieldNorm(doc=447)
0.25 = coord(1/4)
-
Marx, W.; Bornmann, L.; Barth, A.; Leydesdorff, L.: Detecting the historical roots of research fields by reference publication year spectroscopy (RPYS) (2014)
0.02
0.01890724 = product of:
0.07562896 = sum of:
0.07562896 = weight(_text_:l in 1238) [ClassicSimilarity], result of:
0.07562896 = score(doc=1238,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.4347276 = fieldWeight in 1238, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.0546875 = fieldNorm(doc=1238)
0.25 = coord(1/4)
-
Egghe, L.; Leydesdorff, L.: ¬The relation between Pearson's correlation coefficient r and Salton's cosine measure (2009)
0.02
0.016206207 = product of:
0.06482483 = sum of:
0.06482483 = weight(_text_:l in 2803) [ClassicSimilarity], result of:
0.06482483 = score(doc=2803,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.37262368 = fieldWeight in 2803, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=2803)
0.25 = coord(1/4)
-
Bornmann, L.; Leydesdorff, L.: Which cities produce more excellent papers than can be expected? : a new mapping approach, using Google Maps, based on statistical significance testing (2011)
0.02
0.016206207 = product of:
0.06482483 = sum of:
0.06482483 = weight(_text_:l in 4767) [ClassicSimilarity], result of:
0.06482483 = score(doc=4767,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.37262368 = fieldWeight in 4767, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=4767)
0.25 = coord(1/4)
-
Leydesdorff, L.; Radicchi, F.; Bornmann, L.; Castellano, C.; Nooy, W. de: Field-normalized impact factors (IFs) : a comparison of rescaling and fractionally counted IFs (2013)
0.02
0.016206207 = product of:
0.06482483 = sum of:
0.06482483 = weight(_text_:l in 1108) [ClassicSimilarity], result of:
0.06482483 = score(doc=1108,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.37262368 = fieldWeight in 1108, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=1108)
0.25 = coord(1/4)
-
Leydesdorff, L.; Bornmann, L.: ¬The operationalization of "fields" as WoS subject categories (WCs) in evaluative bibliometrics : the cases of "library and information science" and "science & technology studies" (2016)
0.02
0.016206207 = product of:
0.06482483 = sum of:
0.06482483 = weight(_text_:l in 2779) [ClassicSimilarity], result of:
0.06482483 = score(doc=2779,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.37262368 = fieldWeight in 2779, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.046875 = fieldNorm(doc=2779)
0.25 = coord(1/4)
-
Leydesdorff, L.; Vaughan, L.: Co-occurrence matrices and their applications in information science : extending ACA to the Web environment (2006)
0.01
0.013505171 = product of:
0.054020684 = sum of:
0.054020684 = weight(_text_:l in 6113) [ClassicSimilarity], result of:
0.054020684 = score(doc=6113,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.31051973 = fieldWeight in 6113, 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=6113)
0.25 = coord(1/4)
-
Leydesdorff, L.; Bornmann, L.: Integrated impact indicators compared with impact factors : an alternative research design with policy implications (2011)
0.01
0.013505171 = product of:
0.054020684 = sum of:
0.054020684 = weight(_text_:l in 4919) [ClassicSimilarity], result of:
0.054020684 = score(doc=4919,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = queryNorm
0.31051973 = fieldWeight in 4919, 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=4919)
0.25 = coord(1/4)
-
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
0.013505171 = product of:
0.054020684 = sum of:
0.054020684 = weight(_text_:l in 532) [ClassicSimilarity], result of:
0.054020684 = score(doc=532,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = 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)
0.25 = coord(1/4)
-
Bornmann, L.; Wagner, C.; Leydesdorff, L.: BRICS countries and scientific excellence : a bibliometric analysis of most frequently cited papers (2015)
0.01
0.013505171 = product of:
0.054020684 = sum of:
0.054020684 = weight(_text_:l in 2047) [ClassicSimilarity], result of:
0.054020684 = score(doc=2047,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = 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)
0.25 = coord(1/4)
-
Bauer, J.; Leydesdorff, L.; Bornmann, L.: Highly cited papers in Library and Information Science (LIS) : authors, institutions, and network structures (2016)
0.01
0.013505171 = product of:
0.054020684 = sum of:
0.054020684 = weight(_text_:l in 3231) [ClassicSimilarity], result of:
0.054020684 = score(doc=3231,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = 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)
0.25 = coord(1/4)
-
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
0.013505171 = product of:
0.054020684 = sum of:
0.054020684 = weight(_text_:l in 5225) [ClassicSimilarity], result of:
0.054020684 = score(doc=5225,freq=4.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = 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)
0.25 = coord(1/4)
-
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
0.013369438 = product of:
0.053477753 = sum of:
0.053477753 = weight(_text_:l in 8281) [ClassicSimilarity], result of:
0.053477753 = score(doc=8281,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = 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)
0.25 = coord(1/4)
-
Leydesdorff, L.: Theories of citation? (1999)
0.01
0.013369438 = product of:
0.053477753 = sum of:
0.053477753 = weight(_text_:l in 5130) [ClassicSimilarity], result of:
0.053477753 = score(doc=5130,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = 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)
0.25 = coord(1/4)
-
Leydesdorff, L.: Dynamic and evolutionary updates of classificatory schemes in scientific journal structures (2002)
0.01
0.013369438 = product of:
0.053477753 = sum of:
0.053477753 = weight(_text_:l in 1249) [ClassicSimilarity], result of:
0.053477753 = score(doc=1249,freq=2.0), product of:
0.17396861 = queryWeight, product of:
3.9746525 = idf(docFreq=2257, maxDocs=44218)
0.043769516 = 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)
0.25 = coord(1/4)
