Search (451 results, page 1 of 23)

  • × theme_ss:"Informetrie"
  • × year_i:[2000 TO 2010}
  1. Lewison, G.: ¬The work of the Bibliometrics Research Group (City University) and associates (2005) 0.04
    0.0410558 = product of:
      0.0821116 = sum of:
        0.0821116 = sum of:
          0.007219314 = weight(_text_:s in 4890) [ClassicSimilarity], result of:
            0.007219314 = score(doc=4890,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.14414869 = fieldWeight in 4890, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.09375 = fieldNorm(doc=4890)
          0.07489228 = weight(_text_:22 in 4890) [ClassicSimilarity], result of:
            0.07489228 = score(doc=4890,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.46428138 = fieldWeight in 4890, 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=4890)
      0.5 = coord(1/2)
    
    Date
    20. 1.2007 17:02:22
    Source
    Aslib proceedings. 57(2005) no.3, S.200-
  2. Raan, A.F.J. van: Statistical properties of bibliometric indicators : research group indicator distributions and correlations (2006) 0.03
    0.028283251 = product of:
      0.056566503 = sum of:
        0.056566503 = sum of:
          0.003609657 = weight(_text_:s in 5275) [ClassicSimilarity], result of:
            0.003609657 = score(doc=5275,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 5275, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=5275)
          0.052956846 = weight(_text_:22 in 5275) [ClassicSimilarity], result of:
            0.052956846 = score(doc=5275,freq=4.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.32829654 = fieldWeight in 5275, 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=5275)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 16:20:22
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.3, S.408-430
  3. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.03
    0.028283251 = product of:
      0.056566503 = sum of:
        0.056566503 = sum of:
          0.003609657 = weight(_text_:s in 2763) [ClassicSimilarity], result of:
            0.003609657 = score(doc=2763,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 2763, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=2763)
          0.052956846 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
            0.052956846 = score(doc=2763,freq=4.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Date
    22. 3.2009 19:22:35
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.858-862
  4. Thelwall, M.; Ruschenburg, T.: Grundlagen und Forschungsfelder der Webometrie (2006) 0.03
    0.027370533 = product of:
      0.054741066 = sum of:
        0.054741066 = sum of:
          0.004812876 = weight(_text_:s in 77) [ClassicSimilarity], result of:
            0.004812876 = score(doc=77,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.09609913 = fieldWeight in 77, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0625 = fieldNorm(doc=77)
          0.04992819 = weight(_text_:22 in 77) [ClassicSimilarity], result of:
            0.04992819 = score(doc=77,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.30952093 = fieldWeight in 77, 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=77)
      0.5 = coord(1/2)
    
    Date
    4.12.2006 12:12:22
    Source
    Information - Wissenschaft und Praxis. 57(2006) H.8, S.401-406
  5. Rostaing, H.; Barts, N.; Léveillé, V.: Bibliometrics: representation instrument of the multidisciplinary positioning of a scientific area : Implementation for an Advisory Scientific Committee (2007) 0.03
    0.027370533 = product of:
      0.054741066 = sum of:
        0.054741066 = sum of:
          0.004812876 = weight(_text_:s in 1144) [ClassicSimilarity], result of:
            0.004812876 = score(doc=1144,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.09609913 = fieldWeight in 1144, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0625 = fieldNorm(doc=1144)
          0.04992819 = weight(_text_:22 in 1144) [ClassicSimilarity], result of:
            0.04992819 = score(doc=1144,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.30952093 = fieldWeight in 1144, 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=1144)
      0.5 = coord(1/2)
    
    Date
    30.12.2007 11:22:39
    Pages
    S.341-350
  6. Nicolaisen, J.: Citation analysis (2007) 0.02
    0.024964094 = product of:
      0.04992819 = sum of:
        0.04992819 = product of:
          0.09985638 = sum of:
            0.09985638 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.09985638 = score(doc=6091,freq=2.0), product of:
                0.16130796 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046063907 = 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
  7. Burrell, Q.L.: Predicting future citation behavior (2003) 0.02
    0.023949215 = product of:
      0.04789843 = sum of:
        0.04789843 = sum of:
          0.0042112665 = weight(_text_:s in 3837) [ClassicSimilarity], result of:
            0.0042112665 = score(doc=3837,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.08408674 = fieldWeight in 3837, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0546875 = fieldNorm(doc=3837)
          0.043687165 = weight(_text_:22 in 3837) [ClassicSimilarity], result of:
            0.043687165 = score(doc=3837,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.2708308 = fieldWeight in 3837, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0546875 = fieldNorm(doc=3837)
      0.5 = coord(1/2)
    
    Date
    29. 3.2003 19:22:48
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.5, S.372-378
  8. Levitt, J.M.; Thelwall, M.: Citation levels and collaboration within library and information science (2009) 0.02
    0.023569375 = product of:
      0.04713875 = sum of:
        0.04713875 = sum of:
          0.0030080476 = weight(_text_:s in 2734) [ClassicSimilarity], result of:
            0.0030080476 = score(doc=2734,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.060061958 = fieldWeight in 2734, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2734)
          0.0441307 = weight(_text_:22 in 2734) [ClassicSimilarity], result of:
            0.0441307 = score(doc=2734,freq=4.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.27358043 = fieldWeight in 2734, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.0390625 = fieldNorm(doc=2734)
      0.5 = coord(1/2)
    
    Abstract
    Collaboration is a major research policy objective, but does it deliver higher quality research? This study uses citation analysis to examine the Web of Science (WoS) Information Science & Library Science subject category (IS&LS) to ascertain whether, in general, more highly cited articles are more highly collaborative than other articles. It consists of two investigations. The first investigation is a longitudinal comparison of the degree and proportion of collaboration in five strata of citation; it found that collaboration in the highest four citation strata (all in the most highly cited 22%) increased in unison over time, whereas collaboration in the lowest citation strata (un-cited articles) remained low and stable. Given that over 40% of the articles were un-cited, it seems important to take into account the differences found between un-cited articles and relatively highly cited articles when investigating collaboration in IS&LS. The second investigation compares collaboration for 35 influential information scientists; it found that their more highly cited articles on average were not more highly collaborative than their less highly cited articles. In summary, although collaborative research is conducive to high citation in general, collaboration has apparently not tended to be essential to the success of current and former elite information scientists.
    Date
    22. 3.2009 12:43:51
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.434-442
  9. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.02
    0.02206535 = product of:
      0.0441307 = sum of:
        0.0441307 = product of:
          0.0882614 = sum of:
            0.0882614 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.0882614 = score(doc=3925,freq=4.0), product of:
                0.16130796 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.046063907 = 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
  10. H-Index auch im Web of Science (2008) 0.02
    0.021275483 = product of:
      0.042550966 = sum of:
        0.042550966 = sum of:
          0.0051048263 = weight(_text_:s in 590) [ClassicSimilarity], result of:
            0.0051048263 = score(doc=590,freq=4.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.101928525 = fieldWeight in 590, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=590)
          0.03744614 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
            0.03744614 = score(doc=590,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Content
    "Zur Kurzmitteilung "Latest enhancements in Scopus: ... h-Index incorporated in Scopus" in den letzten Online-Mitteilungen (Online-Mitteilungen 92, S.31) ist zu korrigieren, dass der h-Index sehr wohl bereits im Web of Science enthalten ist. Allerdings findet man/frau diese Information nicht in der "cited ref search", sondern neben der Trefferliste einer Quick Search, General Search oder einer Suche über den Author Finder in der rechten Navigationsleiste unter dem Titel "Citation Report". Der "Citation Report" bietet für die in der jeweiligen Trefferliste angezeigten Arbeiten: - Die Gesamtzahl der Zitierungen aller Arbeiten in der Trefferliste - Die mittlere Zitationshäufigkeit dieser Arbeiten - Die Anzahl der Zitierungen der einzelnen Arbeiten, aufgeschlüsselt nach Publikationsjahr der zitierenden Arbeiten - Die mittlere Zitationshäufigkeit dieser Arbeiten pro Jahr - Den h-Index (ein h-Index von x sagt aus, dass x Arbeiten der Trefferliste mehr als x-mal zitiert wurden; er ist gegenüber sehr hohen Zitierungen einzelner Arbeiten unempfindlicher als die mittlere Zitationshäufigkeit)."
    Date
    6. 4.2008 19:04:22
    Source
    Mitteilungen der Vereinigung Österreichischer Bibliothekarinnen und Bibliothekare. 61(2008) H.1, S.124-125
  11. Raan, A.F.J. van: Scaling rules in the science system : influence of field-specific citation characteristics on the impact of research groups (2008) 0.02
    0.021275483 = product of:
      0.042550966 = sum of:
        0.042550966 = sum of:
          0.0051048263 = weight(_text_:s in 2758) [ClassicSimilarity], result of:
            0.0051048263 = score(doc=2758,freq=4.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.101928525 = fieldWeight in 2758, product of:
                2.0 = tf(freq=4.0), with freq of:
                  4.0 = termFreq=4.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=2758)
          0.03744614 = weight(_text_:22 in 2758) [ClassicSimilarity], result of:
            0.03744614 = score(doc=2758,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.23214069 = fieldWeight in 2758, 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=2758)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:03:12
    Footnote
    Vgl. auch: Costas, R., M. Bordons u. T.N. van Leeuwen u.a.: Scaling rules in the science system: Influence of field-specific citation characteristics on the impact of individual researchers. In: Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.740-753.
    Source
    Journal of the American Society for Information Science and Technology. 59(2008) no.4, S.565-576
  12. Leydesdorff, L.: Can networks of journal-journal citations be used as indicators of change in the social sciences? (2003) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 4460) [ClassicSimilarity], result of:
            0.003609657 = score(doc=4460,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 4460, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=4460)
          0.03744614 = weight(_text_:22 in 4460) [ClassicSimilarity], result of:
            0.03744614 = score(doc=4460,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Date
    6.11.2005 19:02:22
    Source
    Journal of documentation. 59(2003) no.1, S.84-104
  13. Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 5270) [ClassicSimilarity], result of:
            0.003609657 = score(doc=5270,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 5270, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=5270)
          0.03744614 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
            0.03744614 = score(doc=5270,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 15:26:24
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.3, S.342-346
  14. Haycock, L.A.: Citation analysis of education dissertations for collection development (2004) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 135) [ClassicSimilarity], result of:
            0.003609657 = score(doc=135,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 135, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=135)
          0.03744614 = weight(_text_:22 in 135) [ClassicSimilarity], result of:
            0.03744614 = score(doc=135,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.23214069 = fieldWeight in 135, 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=135)
      0.5 = coord(1/2)
    
    Date
    10. 9.2000 17:38:22
    Source
    Library resources and technical services. 48(2004) no.2, S.102-106
  15. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 201) [ClassicSimilarity], result of:
            0.003609657 = score(doc=201,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 201, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=201)
          0.03744614 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
            0.03744614 = score(doc=201,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Date
    3. 1.2007 17:22:03
    Source
    Journal of the American Society for Information Science and Technology. 57(2006) no.9, S.1263-1274
  16. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 994) [ClassicSimilarity], result of:
            0.003609657 = score(doc=994,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 994, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=994)
          0.03744614 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
            0.03744614 = score(doc=994,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Date
    26.12.2007 19:22:05
    Source
    Information processing and management. 42(2006) no.6, S.1451-1464
  17. Althouse, B.M.; West, J.D.; Bergstrom, C.T.; Bergstrom, T.: Differences in impact factor across fields and over time (2009) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 2695) [ClassicSimilarity], result of:
            0.003609657 = score(doc=2695,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 2695, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=2695)
          0.03744614 = weight(_text_:22 in 2695) [ClassicSimilarity], result of:
            0.03744614 = score(doc=2695,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.23214069 = fieldWeight in 2695, 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=2695)
      0.5 = coord(1/2)
    
    Date
    23. 2.2009 18:22:28
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.1, S.27-34
  18. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 2742) [ClassicSimilarity], result of:
            0.003609657 = score(doc=2742,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 2742, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=2742)
          0.03744614 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
            0.03744614 = score(doc=2742,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.23214069 = fieldWeight in 2742, 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=2742)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 17:49:11
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.3, S.557-570
  19. Camacho-Miñano, M.-del-Mar; Núñez-Nickel, M.: ¬The multilayered nature of reference selection (2009) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 2751) [ClassicSimilarity], result of:
            0.003609657 = score(doc=2751,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 2751, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=2751)
          0.03744614 = weight(_text_:22 in 2751) [ClassicSimilarity], result of:
            0.03744614 = score(doc=2751,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = queryNorm
              0.23214069 = fieldWeight in 2751, 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=2751)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:05:07
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.754-777
  20. Leydesdorff, L.; Sun, Y.: National and international dimensions of the Triple Helix in Japan : university-industry-government versus international coauthorship relations (2009) 0.02
    0.0205279 = product of:
      0.0410558 = sum of:
        0.0410558 = sum of:
          0.003609657 = weight(_text_:s in 2761) [ClassicSimilarity], result of:
            0.003609657 = score(doc=2761,freq=2.0), product of:
              0.05008241 = queryWeight, product of:
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046063907 = queryNorm
              0.072074346 = fieldWeight in 2761, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.0872376 = idf(docFreq=40523, maxDocs=44218)
                0.046875 = fieldNorm(doc=2761)
          0.03744614 = weight(_text_:22 in 2761) [ClassicSimilarity], result of:
            0.03744614 = score(doc=2761,freq=2.0), product of:
              0.16130796 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.046063907 = 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)
    
    Date
    22. 3.2009 19:07:20
    Source
    Journal of the American Society for Information Science and Technology. 60(2009) no.4, S.778-788

Authors

Languages

  • e 406
  • d 44
  • f 1
  • More… Less…

Types

  • a 440
  • m 6
  • r 3
  • el 2
  • x 2
  • s 1
  • More… Less…