-
Egghe, L.; Rousseau, R.: ¬A measure for the cohesion of weighted networks (2003)
0.01
0.0118597075 = product of:
0.035579123 = sum of:
0.035579123 = product of:
0.10673737 = sum of:
0.10673737 = weight(_text_:network in 5157) [ClassicSimilarity], result of:
0.10673737 = score(doc=5157,freq=10.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.5501096 = fieldWeight in 5157, product of:
3.1622777 = tf(freq=10.0), with freq of:
10.0 = termFreq=10.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.0390625 = fieldNorm(doc=5157)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Measurement of the degree of interconnectedness in graph like networks of hyperlinks or citations can indicate the existence of research fields and assist in comparative evaluation of research efforts. In this issue we begin with Egghe and Rousseau who review compactness measures and investigate the compactness of a network as a weighted graph with dissimilarity values characterizing the arcs between nodes. They make use of a generalization of the Botofogo, Rivlin, Shneiderman, (BRS) compaction measure which treats the distance between unreachable nodes not as infinity but rather as the number of nodes in the network. The dissimilarity values are determined by summing the reciprocals of the weights of the arcs in the shortest chain between two nodes where no weight is smaller than one. The BRS measure is then the maximum value for the sum of the dissimilarity measures less the actual sum divided by the difference between the maximum and minimum. The Wiener index, the sum of all elements in the dissimilarity matrix divided by two, is then computed for Small's particle physics co-citation data as well as the BRS measure, the dissimilarity values and shortest paths. The compactness measure for the weighted network is smaller than for the un-weighted. When the bibliographic coupling network is utilized it is shown to be less compact than the co-citation network which indicates that the new measure produces results that confirm to an obvious case.
-
Egghe, L.; Guns, R.; Rousseau, R.; Leuven, K.U.: Erratum (2012)
0.01
0.006558894 = product of:
0.019676682 = sum of:
0.019676682 = product of:
0.059030045 = sum of:
0.059030045 = weight(_text_:22 in 4992) [ClassicSimilarity], result of:
0.059030045 = score(doc=4992,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.38690117 = fieldWeight in 4992, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=4992)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 14. 2.2012 12:53:22
-
Liu, Y.; Rafols, I.; Rousseau, R.: ¬A framework for knowledge integration and diffusion (2012)
0.01
0.0063645868 = product of:
0.01909376 = sum of:
0.01909376 = product of:
0.057281278 = sum of:
0.057281278 = weight(_text_:network in 297) [ClassicSimilarity], result of:
0.057281278 = score(doc=297,freq=2.0), product of:
0.19402927 = queryWeight, product of:
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.043569047 = queryNorm
0.29521978 = fieldWeight in 297, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.4533744 = idf(docFreq=1398, maxDocs=44218)
0.046875 = fieldNorm(doc=297)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Abstract
- Purpose - This paper aims to introduce a general framework for the analysis of knowledge integration and diffusion using bibliometric data. Design/methodology/approach - The authors propose that in order to characterise knowledge integration and diffusion of a given issue (the source, for example articles on a topic or by an organisation, etc.), one has to choose a set of elements from the source (the intermediary set, for example references, keywords, etc.). This set can then be classified into categories (cats), thus making it possible to investigate its diversity. The set can also be characterised according to the coherence of a network associated to it. Findings - This framework allows a methodology to be developed to assess knowledge integration and diffusion. Such methodologies can be useful for a number of science policy issues, including the assessment of interdisciplinarity in research and dynamics of research networks. Originality/value - The main contribution of this article is to provide a simple and easy to use generalisation of an existing approach to study interdisciplinarity, bringing knowledge integration and knowledge diffusion together in one framework.
-
Rousseau, R.: Timelines in citation research (2006)
0.01
0.0052947453 = product of:
0.015884236 = sum of:
0.015884236 = product of:
0.047652703 = sum of:
0.047652703 = weight(_text_:29 in 1746) [ClassicSimilarity], result of:
0.047652703 = score(doc=1746,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.31092256 = fieldWeight in 1746, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=1746)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 18. 8.2006 14:29:40
-
Liu, Y.; Rousseau, R.: Citation analysis and the development of science : a case study using articles by some Nobel prize winners (2014)
0.01
0.0052947453 = product of:
0.015884236 = sum of:
0.015884236 = product of:
0.047652703 = sum of:
0.047652703 = weight(_text_:29 in 1197) [ClassicSimilarity], result of:
0.047652703 = score(doc=1197,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.31092256 = fieldWeight in 1197, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0625 = fieldNorm(doc=1197)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 29. 1.2014 16:31:35
-
Egghe, L.; Rousseau, R.: Introduction to informetrics : quantitative methods in library, documentation and information science (1990)
0.00
0.0046329014 = product of:
0.013898704 = sum of:
0.013898704 = product of:
0.041696113 = sum of:
0.041696113 = weight(_text_:29 in 1515) [ClassicSimilarity], result of:
0.041696113 = score(doc=1515,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.27205724 = fieldWeight in 1515, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0546875 = fieldNorm(doc=1515)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 29. 2.2008 19:02:46
-
Frandsen, T.F.; Rousseau, R.: Article impact calculated over arbitrary periods (2005)
0.00
0.003971059 = product of:
0.011913176 = sum of:
0.011913176 = product of:
0.035739526 = sum of:
0.035739526 = weight(_text_:29 in 3264) [ClassicSimilarity], result of:
0.035739526 = score(doc=3264,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.23319192 = fieldWeight in 3264, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=3264)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 20. 3.2005 10:29:08
-
Liang, L.; Rousseau, R.: Yield sequences as journal attractivity indicators : "payback times" for Science and Nature (2008)
0.00
0.003971059 = product of:
0.011913176 = sum of:
0.011913176 = product of:
0.035739526 = sum of:
0.035739526 = weight(_text_:29 in 1737) [ClassicSimilarity], result of:
0.035739526 = score(doc=1737,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.23319192 = fieldWeight in 1737, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=1737)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 21. 3.2008 14:29:54
-
Colebunders, R.; Kenyon, C.; Rousseau, R.: Increase in numbers and proportions of review articles in Tropical Medicine, Infectious Diseases, and oncology (2014)
0.00
0.003971059 = product of:
0.011913176 = sum of:
0.011913176 = product of:
0.035739526 = sum of:
0.035739526 = weight(_text_:29 in 1189) [ClassicSimilarity], result of:
0.035739526 = score(doc=1189,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.23319192 = fieldWeight in 1189, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=1189)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 29. 1.2014 15:56:36
-
Shi, D.; Rousseau, R.; Yang, L.; Li, J.: ¬A journal's impact factor is influenced by changes in publication delays of citing journals (2017)
0.00
0.003971059 = product of:
0.011913176 = sum of:
0.011913176 = product of:
0.035739526 = sum of:
0.035739526 = weight(_text_:29 in 3441) [ClassicSimilarity], result of:
0.035739526 = score(doc=3441,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.23319192 = fieldWeight in 3441, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.046875 = fieldNorm(doc=3441)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 16.11.2017 13:29:52
-
Egghe, L.; Rousseau, R.: Averaging and globalising quotients of informetric and scientometric data (1996)
0.00
0.0039353366 = product of:
0.011806009 = sum of:
0.011806009 = product of:
0.035418026 = sum of:
0.035418026 = weight(_text_:22 in 7659) [ClassicSimilarity], result of:
0.035418026 = score(doc=7659,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.23214069 = fieldWeight in 7659, 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=7659)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Source
- Journal of information science. 22(1996) no.3, S.165-170
-
Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006)
0.00
0.0039353366 = product of:
0.011806009 = sum of:
0.011806009 = product of:
0.035418026 = sum of:
0.035418026 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
0.035418026 = score(doc=5270,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.23214069 = fieldWeight in 5270, 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=5270)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 22. 7.2006 15:26:24
-
Yang, B.; Rousseau, R.; Wang, X.; Huang, S.: How important is scientific software in bioinformatics research? : a comparative study between international and Chinese research communities (2018)
0.00
0.003309216 = product of:
0.009927647 = sum of:
0.009927647 = product of:
0.029782942 = sum of:
0.029782942 = weight(_text_:29 in 4461) [ClassicSimilarity], result of:
0.029782942 = score(doc=4461,freq=2.0), product of:
0.15326229 = queryWeight, product of:
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.043569047 = queryNorm
0.19432661 = fieldWeight in 4461, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5176873 = idf(docFreq=3565, maxDocs=44218)
0.0390625 = fieldNorm(doc=4461)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 29. 9.2018 12:36:19
-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.00
0.0026235576 = product of:
0.007870672 = sum of:
0.007870672 = product of:
0.023612017 = sum of:
0.023612017 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.023612017 = score(doc=5171,freq=2.0), product of:
0.15257138 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.043569047 = queryNorm
0.15476047 = fieldWeight in 5171, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.03125 = fieldNorm(doc=5171)
0.33333334 = coord(1/3)
0.33333334 = coord(1/3)
- Date
- 9. 7.2006 10:22:35
