-
Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003)
0.04
0.041644707 = product of:
0.083289415 = sum of:
0.083289415 = sum of:
0.058996763 = weight(_text_:2003 in 5171) [ClassicSimilarity], result of:
0.058996763 = score(doc=5171,freq=5.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.30326456 = fieldWeight in 5171, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.03125 = fieldNorm(doc=5171)
0.024292652 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
0.024292652 = score(doc=5171,freq=2.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = 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)
0.5 = coord(1/2)
- Date
- 9. 7.2006 10:22:35
- Source
- Journal of the American Society for Information Science and technology. 54(2003) no.6, S.549-568
- Year
- 2003
-
Garfield, E.; Pudovkin, A.I.; Istomin, V.S.: Why do we need algorithmic historiography? (2003)
0.03
0.029498382 = product of:
0.058996763 = sum of:
0.058996763 = product of:
0.117993526 = sum of:
0.117993526 = weight(_text_:2003 in 1606) [ClassicSimilarity], result of:
0.117993526 = score(doc=1606,freq=5.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.6065291 = fieldWeight in 1606, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.0625 = fieldNorm(doc=1606)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and technology. 54(2003) no.5, S.400-412
- Year
- 2003
-
Morris, S.A.; Yen, G.; Wu, Z.; Asnake, B.: Time line visualization of research fronts (2003)
0.03
0.025811084 = product of:
0.051622167 = sum of:
0.051622167 = product of:
0.103244334 = sum of:
0.103244334 = weight(_text_:2003 in 1452) [ClassicSimilarity], result of:
0.103244334 = score(doc=1452,freq=5.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.53071296 = fieldWeight in 1452, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.0546875 = fieldNorm(doc=1452)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and technology. 54(2003) no.5, S.413-422
- Year
- 2003
-
Nicolaisen, J.: Citation analysis (2007)
0.02
0.024292652 = product of:
0.048585303 = sum of:
0.048585303 = product of:
0.097170606 = sum of:
0.097170606 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
0.097170606 = score(doc=6091,freq=2.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = queryNorm
0.61904186 = fieldWeight in 6091, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.125 = fieldNorm(doc=6091)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 13. 7.2008 19:53:22
-
Gorraiz, J.; Schlögl, C.: Zusammenhang von Zeitschriftennachfrage und -zitationshäufigkeiten : ¬Eine bibliometrische Analyse eines Dokumentlieferdienstes am Beispiel von Subito (2003)
0.02
0.022123788 = product of:
0.044247575 = sum of:
0.044247575 = product of:
0.08849515 = sum of:
0.08849515 = weight(_text_:2003 in 718) [ClassicSimilarity], result of:
0.08849515 = score(doc=718,freq=5.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.45489684 = fieldWeight in 718, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.046875 = fieldNorm(doc=718)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Zeitschrift für Bibliothekswesen und Bibliographie. 50(2003) H.3, S.131-140
- Year
- 2003
-
Lin, X.; White, H.D.; Buzydlowski, J.: Real-time author co-citation mapping for online searching (2003)
0.02
0.022123788 = product of:
0.044247575 = sum of:
0.044247575 = product of:
0.08849515 = sum of:
0.08849515 = weight(_text_:2003 in 1080) [ClassicSimilarity], result of:
0.08849515 = score(doc=1080,freq=5.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.45489684 = fieldWeight in 1080, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.046875 = fieldNorm(doc=1080)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Information processing and management. 39(2003) no.5, S.689-706
- Year
- 2003
-
Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001)
0.02
0.021471873 = product of:
0.042943746 = sum of:
0.042943746 = product of:
0.08588749 = sum of:
0.08588749 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
0.08588749 = score(doc=3925,freq=4.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = queryNorm
0.54716086 = fieldWeight in 3925, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.078125 = fieldNorm(doc=3925)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 7.2006 15:22:28
-
Hyland, K.: Self-citation and self-reference : credibility and promotion in academic publication (2003)
0.02
0.01843649 = product of:
0.03687298 = sum of:
0.03687298 = product of:
0.07374596 = sum of:
0.07374596 = weight(_text_:2003 in 5156) [ClassicSimilarity], result of:
0.07374596 = score(doc=5156,freq=5.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.3790807 = fieldWeight in 5156, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.0390625 = fieldNorm(doc=5156)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and technology. 54(2003) no.3, S.251-259
- Year
- 2003
-
Vaughan, L.; Shaw , D.: Bibliographic and Web citations : what Is the difference? (2003)
0.02
0.01843649 = product of:
0.03687298 = sum of:
0.03687298 = product of:
0.07374596 = sum of:
0.07374596 = weight(_text_:2003 in 5176) [ClassicSimilarity], result of:
0.07374596 = score(doc=5176,freq=5.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.3790807 = fieldWeight in 5176, product of:
2.236068 = tf(freq=5.0), with freq of:
5.0 = termFreq=5.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.0390625 = fieldNorm(doc=5176)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Journal of the American Society for Information Science and technology. 54(2003) no.14, S.1313-1324
- Year
- 2003
-
Czepel, R.: ¬Die Geographie der wissenschaftlichen Zitierung (2003)
0.02
0.017451478 = product of:
0.034902956 = sum of:
0.034902956 = product of:
0.06980591 = sum of:
0.06980591 = weight(_text_:2003 in 2273) [ClassicSimilarity], result of:
0.06980591 = score(doc=2273,freq=7.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.35882747 = fieldWeight in 2273, product of:
2.6457512 = tf(freq=7.0), with freq of:
7.0 = termFreq=7.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.03125 = fieldNorm(doc=2273)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Source
- Online Mitteilungen. 2003, Nr.77, S.34-36 [=Mitteilungen VÖB 56(2003) H.3/4]
- Year
- 2003
-
González, L.; Campanario, J.M.: Structure of the impact factor of journals included in the Social Sciences Citation Index : citations from documents labeled "Editorial Material" (2007)
0.01
0.013992311 = product of:
0.027984623 = sum of:
0.027984623 = product of:
0.055969246 = sum of:
0.055969246 = weight(_text_:2003 in 75) [ClassicSimilarity], result of:
0.055969246 = score(doc=75,freq=2.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.28770202 = fieldWeight in 75, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.046875 = fieldNorm(doc=75)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- We investigated how citations from documents labeled by the Institute for Scientific Information (ISI) as "editorial material" contribute to the impact factor of academic journals in which they were published. Our analysis is based on records corresponding to the documents classified by the ISI as editorial material published in journals covered by the Social Sciences Citation Index between 1999 and 2003 (50,273 records corresponding to editorial material published in 2,374 journals). The results appear to rule out widespread manipulation of the impact factor by academic journals publishing large amounts of editorial material with many citations to the journal itself as a strategy to increase the impact factor.
-
Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009)
0.01
0.012883125 = product of:
0.02576625 = sum of:
0.02576625 = product of:
0.0515325 = sum of:
0.0515325 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
0.0515325 = score(doc=2763,freq=4.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = queryNorm
0.32829654 = fieldWeight in 2763, product of:
2.0 = tf(freq=4.0), with freq of:
4.0 = termFreq=4.0
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.046875 = fieldNorm(doc=2763)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 3.2009 19:22:35
-
Johnson, B.; Oppenheim, C.: How socially connected are citers to those that they cite? (2007)
0.01
0.01166026 = product of:
0.02332052 = sum of:
0.02332052 = product of:
0.04664104 = sum of:
0.04664104 = weight(_text_:2003 in 839) [ClassicSimilarity], result of:
0.04664104 = score(doc=839,freq=2.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.2397517 = fieldWeight in 839, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.0390625 = fieldNorm(doc=839)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- Purpose - The purpose of this paper is to report an investigation into the social and citation networks of three information scientists: David Nicholas, Peter Williams and Paul Huntington. Design/methodology/approach - Similarities between citation patterns and social closeness were identified and discussed. A total of 16 individuals in the citation network were identified and investigated using citation analysis, and a matrix formed of citations made between those in the network. Social connections between the 16 in the citation network were then investigated by means of a questionnaire, the results of which were merged into a separate matrix. These matrices were converted into visual social networks, using multidimensional scaling. A new deviance measure was devised for drawing comparisons between social and citation closeness in individual cases. Findings - Nicholas, Williams and Huntington were found to have cited 527 authors in the period 2000-2003, the 16 most cited becoming the subjects of further citation and social investigation. This comparison, along with the examination of visual representations indicates a positive correlation between social closeness and citation counts. Possible explanations for this correlation are discussed, and implications considered. Despite this correlation, the information scientists were found to cite widely outside their immediate social connections. Originality/value - Social network analysis has not been often used in combination with citation analysis to explore inter-relationships in research teams.
-
Kousha, K.; Thelwall, M.: Google book search : citation analysis for social science and the humanities (2009)
0.01
0.01166026 = product of:
0.02332052 = sum of:
0.02332052 = product of:
0.04664104 = sum of:
0.04664104 = weight(_text_:2003 in 2946) [ClassicSimilarity], result of:
0.04664104 = score(doc=2946,freq=2.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.2397517 = fieldWeight in 2946, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.0390625 = fieldNorm(doc=2946)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Abstract
- In both the social sciences and the humanities, books and monographs play significant roles in research communication. The absence of citations from most books and monographs from the Thomson Reuters/Institute for Scientific Information databases (ISI) has been criticized, but attempts to include citations from or to books in the research evaluation of the social sciences and humanities have not led to widespread adoption. This article assesses whether Google Book Search (GBS) can partially fill this gap by comparing citations from books with citations from journal articles to journal articles in 10 science, social science, and humanities disciplines. Book citations were 31% to 212% of ISI citations and, hence, numerous enough to supplement ISI citations in the social sciences and humanities covered, but not in the sciences (3%-5%), except for computing (46%), due to numerous published conference proceedings. A case study was also made of all 1,923 articles in the 51 information science and library science ISI-indexed journals published in 2003. Within this set, highly book-cited articles tended to receive many ISI citations, indicating a significant relationship between the two types of citation data, but with important exceptions that point to the additional information provided by book citations. In summary, GBS is clearly a valuable new source of citation data for the social sciences and humanities. One practical implication is that book-oriented scholars should consult it for additional citations to their work when applying for promotion and tenure.
-
Chen, C.: Mapping scientific frontiers : the quest for knowledge visualization (2003)
0.01
0.011424675 = product of:
0.02284935 = sum of:
0.02284935 = product of:
0.0456987 = sum of:
0.0456987 = weight(_text_:2003 in 2213) [ClassicSimilarity], result of:
0.0456987 = score(doc=2213,freq=3.0), product of:
0.19453894 = queryWeight, product of:
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.044824958 = queryNorm
0.23490772 = fieldWeight in 2213, product of:
1.7320508 = tf(freq=3.0), with freq of:
3.0 = termFreq=3.0
4.339969 = idf(docFreq=1566, maxDocs=44218)
0.03125 = fieldNorm(doc=2213)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Year
- 2003
-
Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006)
0.01
0.009109745 = product of:
0.01821949 = sum of:
0.01821949 = product of:
0.03643898 = sum of:
0.03643898 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
0.03643898 = score(doc=201,freq=2.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = queryNorm
0.23214069 = fieldWeight in 201, 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=201)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 3. 1.2007 17:22:03
-
H-Index auch im Web of Science (2008)
0.01
0.009109745 = product of:
0.01821949 = sum of:
0.01821949 = product of:
0.03643898 = sum of:
0.03643898 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
0.03643898 = score(doc=590,freq=2.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = queryNorm
0.23214069 = fieldWeight in 590, 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=590)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 6. 4.2008 19:04:22
-
Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006)
0.01
0.009109745 = product of:
0.01821949 = sum of:
0.01821949 = product of:
0.03643898 = sum of:
0.03643898 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
0.03643898 = score(doc=994,freq=2.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = queryNorm
0.23214069 = fieldWeight in 994, 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=994)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 26.12.2007 19:22:05
-
Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008)
0.01
0.007591454 = product of:
0.015182908 = sum of:
0.015182908 = product of:
0.030365815 = sum of:
0.030365815 = weight(_text_:22 in 1934) [ClassicSimilarity], result of:
0.030365815 = score(doc=1934,freq=2.0), product of:
0.15696937 = queryWeight, product of:
3.5018296 = idf(docFreq=3622, maxDocs=44218)
0.044824958 = queryNorm
0.19345059 = fieldWeight in 1934, 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=1934)
0.5 = coord(1/2)
0.5 = coord(1/2)
- Date
- 22. 6.2008 12:54:12
