-
Marx, W.; Bornmann, L.: On the problems of dealing with bibliometric data (2014)
0.01
0.01218228 = product of:
0.03654684 = sum of:
0.03654684 = product of:
0.07309368 = sum of:
0.07309368 = weight(_text_:22 in 1239) [ClassicSimilarity], result of:
0.07309368 = score(doc=1239,freq=2.0), product of:
0.15743402 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044957645 = queryNorm
0.46428138 = fieldWeight in 1239, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.09375 = fieldNorm(doc=1239)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 18. 3.2014 19:13:22
-
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)
0.01
0.0091735665 = product of:
0.027520698 = sum of:
0.027520698 = product of:
0.055041395 = sum of:
0.055041395 = weight(_text_:de in 1108) [ClassicSimilarity], result of:
0.055041395 = score(doc=1108,freq=2.0), product of:
0.193205 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.044957645 = queryNorm
0.28488597 = fieldWeight in 1108, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.046875 = fieldNorm(doc=1108)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
-
Bornmann, L.; Moya Anegón, F. de; Mutz, R.: Do universities or research institutions with a specific subject profile have an advantage or a disadvantage in institutional rankings? (2013)
0.01
0.0091735665 = product of:
0.027520698 = sum of:
0.027520698 = product of:
0.055041395 = sum of:
0.055041395 = weight(_text_:de in 1109) [ClassicSimilarity], result of:
0.055041395 = score(doc=1109,freq=2.0), product of:
0.193205 = queryWeight, product of:
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.044957645 = queryNorm
0.28488597 = fieldWeight in 1109, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.297489 = idf(docFreq=1634, maxDocs=44218)
0.046875 = fieldNorm(doc=1109)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
-
Dobrota, M.; Bulajic, M.; Bornmann, L.; Jeremic, V.: ¬A new approach to the QS university ranking using the composite I-distance indicator : uncertainty and sensitivity analyses (2016)
0.01
0.008699833 = product of:
0.0260995 = sum of:
0.0260995 = weight(_text_:m in 2500) [ClassicSimilarity], result of:
0.0260995 = score(doc=2500,freq=4.0), product of:
0.11187479 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.044957645 = queryNorm
0.23329206 = fieldWeight in 2500, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.046875 = fieldNorm(doc=2500)
0.33333334 = coord(1/3)
-
Bornmann, L.; Mutz, R.: From P100 to P100' : a new citation-rank approach (2014)
0.01
0.00812152 = product of:
0.02436456 = sum of:
0.02436456 = product of:
0.04872912 = sum of:
0.04872912 = weight(_text_:22 in 1431) [ClassicSimilarity], result of:
0.04872912 = score(doc=1431,freq=2.0), product of:
0.15743402 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044957645 = queryNorm
0.30952093 = fieldWeight in 1431, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.0625 = fieldNorm(doc=1431)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 8.2014 17:05:18
-
Bornmann, L.: How to analyze percentile citation impact data meaningfully in bibliometrics : the statistical analysis of distributions, percentile rank classes, and top-cited papers (2013)
0.01
0.00609114 = product of:
0.01827342 = sum of:
0.01827342 = product of:
0.03654684 = sum of:
0.03654684 = weight(_text_:22 in 656) [ClassicSimilarity], result of:
0.03654684 = score(doc=656,freq=2.0), product of:
0.15743402 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044957645 = queryNorm
0.23214069 = fieldWeight in 656, 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=656)
0.5 = coord(1/2)
0.33333334 = coord(1/3)
- Date
- 22. 3.2013 19:44:17
-
Leydesdorff, L.; Bornmann, L.; Wagner, C.S.: ¬The relative influences of government funding and international collaboration on citation impact (2019)
0.01
0.00609114 = product of:
0.01827342 = sum of:
0.01827342 = product of:
0.03654684 = sum of:
0.03654684 = weight(_text_:22 in 4681) [ClassicSimilarity], result of:
0.03654684 = score(doc=4681,freq=2.0), product of:
0.15743402 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044957645 = 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)
0.33333334 = coord(1/3)
- Date
- 8. 1.2019 18:22:45
-
Bornmann, L.; Daniel, H.-D.: Multiple publication on a single research study: does it pay? : The influence of number of research articles on total citation counts in biomedicine (2007)
0.01
0.005126426 = product of:
0.015379278 = sum of:
0.015379278 = weight(_text_:m in 444) [ClassicSimilarity], result of:
0.015379278 = score(doc=444,freq=2.0), product of:
0.11187479 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.044957645 = queryNorm
0.13746867 = fieldWeight in 444, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0390625 = fieldNorm(doc=444)
0.33333334 = coord(1/3)
- Abstract
- Scientists may seek to report a single definable body of research in more than one publication, that is, in repeated reports of the same work or in fractional reports, in order to disseminate their research as widely as possible in the scientific community. Up to now, however, it has not been examined whether this strategy of "multiple publication" in fact leads to greater reception of the research. In the present study, we investigate the influence of number of articles reporting the results of a single study on reception in the scientific community (total citation counts of an article on a single study). Our data set consists of 96 applicants for a research fellowship from the Boehringer Ingelheim Fonds (BIF), an international foundation for the promotion of basic research in biomedicine. The applicants reported to us all articles that they had published within the framework of their doctoral research projects. On this single project, the applicants had published from 1 to 16 articles (M = 4; Mdn = 3). The results of a regression model with an interaction term show that the practice of multiple publication of research study results does in fact lead to greater reception of the research (higher total citation counts) in the scientific community. However, reception is dependent upon length of article: the longer the article, the more total citation counts increase with the number of articles. Thus, it pays for scientists to practice multiple publication of study results in the form of sizable reports.
-
Marx, W.; Bornmann, L.; Cardona, M.: Reference standards and reference multipliers for the comparison of the citation impact of papers published in different time periods (2010)
0.01
0.005126426 = product of:
0.015379278 = sum of:
0.015379278 = weight(_text_:m in 3998) [ClassicSimilarity], result of:
0.015379278 = score(doc=3998,freq=2.0), product of:
0.11187479 = queryWeight, product of:
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.044957645 = queryNorm
0.13746867 = fieldWeight in 3998, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
2.4884486 = idf(docFreq=9980, maxDocs=44218)
0.0390625 = fieldNorm(doc=3998)
0.33333334 = coord(1/3)
-
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
0.0050759506 = product of:
0.015227851 = sum of:
0.015227851 = product of:
0.030455703 = sum of:
0.030455703 = weight(_text_:22 in 4186) [ClassicSimilarity], result of:
0.030455703 = score(doc=4186,freq=2.0), product of:
0.15743402 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044957645 = 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)
0.33333334 = coord(1/3)
- Date
- 22. 1.2011 12:51:07
