Search (30 results, page 1 of 2)

  • × language_ss:"e"
  • × theme_ss:"Informetrie"
  • × year_i:[2000 TO 2010}
  1. Craven, T.C.: Determining authorship of Web pages (2006) 0.03
    0.028418882 = product of:
      0.056837764 = sum of:
        0.056837764 = product of:
          0.11367553 = sum of:
            0.11367553 = weight(_text_:90 in 1498) [ClassicSimilarity], result of:
              0.11367553 = score(doc=1498,freq=2.0), product of:
                0.2733978 = queryWeight, product of:
                  5.376119 = idf(docFreq=555, maxDocs=44218)
                  0.050854117 = queryNorm
                0.415788 = fieldWeight in 1498, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.376119 = idf(docFreq=555, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=1498)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Assignability of authors to Web pages using either normal browsing procedures or browsing assisted by simple automatic extraction was investigated. Candidate strings for 1000 pages were extracted automatically from title elements, meta-tags, and address-like and copyright-like passages; 539 of the pages produced at least one candidate: 310 candidates from titles, 66 from meta-tags, 91 from address-like passages, and 259 from copyright-like passages. An assistant attempted to identify personal authors for 943 pages by examining the pages themselves and related pages; this added 90 pages with authors to the pages from which no candidate strings were extracted. Specific problems are noted and some refinements to the extraction methods are suggested.
  2. Nicolaisen, J.: Citation analysis (2007) 0.03
    0.027560122 = product of:
      0.055120245 = sum of:
        0.055120245 = product of:
          0.11024049 = sum of:
            0.11024049 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.11024049 = score(doc=6091,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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
  3. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.02
    0.024359938 = product of:
      0.048719876 = sum of:
        0.048719876 = product of:
          0.09743975 = sum of:
            0.09743975 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.09743975 = score(doc=3925,freq=4.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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
  4. Lewison, G.: ¬The work of the Bibliometrics Research Group (City University) and associates (2005) 0.02
    0.020670092 = product of:
      0.041340183 = sum of:
        0.041340183 = product of:
          0.08268037 = sum of:
            0.08268037 = weight(_text_:22 in 4890) [ClassicSimilarity], result of:
              0.08268037 = score(doc=4890,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    20. 1.2007 17:02:22
  5. Leydesdorff, L.; Heimeriks, G.: ¬The self-organization of the European information society : the case of "biotechnology" (2001) 0.02
    0.020299202 = product of:
      0.040598404 = sum of:
        0.040598404 = product of:
          0.08119681 = sum of:
            0.08119681 = weight(_text_:90 in 6524) [ClassicSimilarity], result of:
              0.08119681 = score(doc=6524,freq=2.0), product of:
                0.2733978 = queryWeight, product of:
                  5.376119 = idf(docFreq=555, maxDocs=44218)
                  0.050854117 = queryNorm
                0.29699144 = fieldWeight in 6524, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.376119 = idf(docFreq=555, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=6524)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Footnote
    Vgl. auch die Stellungnahme von P. van den Besselaar: Empirical evidence of self-organization? in: JASIST 54(2003) no.1, S.87-90.
  6. Al, U.; Sahiner, M.; Tonta, Y.: Arts and humanities literature : bibliometric characteristics of contributions by Turkish authors (2006) 0.02
    0.020299202 = product of:
      0.040598404 = sum of:
        0.040598404 = product of:
          0.08119681 = sum of:
            0.08119681 = weight(_text_:90 in 5108) [ClassicSimilarity], result of:
              0.08119681 = score(doc=5108,freq=2.0), product of:
                0.2733978 = queryWeight, product of:
                  5.376119 = idf(docFreq=555, maxDocs=44218)
                  0.050854117 = queryNorm
                0.29699144 = fieldWeight in 5108, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  5.376119 = idf(docFreq=555, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5108)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Scholarly communication in arts and humanities differs from that in the sciences. Arts and humanities scholars rely primarily on monographs as a medium of publication whereas scientists consider articles that appear in scholarly journals as the single most important publication outlet. The number of journal citation studies in arts and humanities is therefore limited. In this article, we investigate the bibliometric characteristics of 507 arts and humanities journal articles written by authors affiliated with Turkish institutions and indexed in the Arts & Humanities Citation Index (A&HCI) between the years 1975-2003. Journal articles constituted more than 60% of all publications. One third of all contributions were published during the last 4 years (1999-2003) and appeared in 16 different journals. An overwhelming majority of contributions (91%) were written in English, and 83% of them had single authorship. Researchers based at Turkish universities produced 90% of all publications. Two thirds of references in publications were to monographs. The median age of all references was 12 years. Eighty percent of publications authored by Turkish arts and humanities scholars were not cited at all while the remaining 20% (or 99 publications) were cited 304 times (an average of three citations per publication). Self-citation ratio was 31%. Two thirds of the cited publications were cited for the first time within 2 years of their publications.
  7. Raan, A.F.J. van: Statistical properties of bibliometric indicators : research group indicator distributions and correlations (2006) 0.01
    0.014615963 = product of:
      0.029231926 = sum of:
        0.029231926 = product of:
          0.058463853 = sum of:
            0.058463853 = weight(_text_:22 in 5275) [ClassicSimilarity], result of:
              0.058463853 = score(doc=5275,freq=4.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 16:20:22
  8. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01
    0.014615963 = product of:
      0.029231926 = sum of:
        0.029231926 = product of:
          0.058463853 = sum of:
            0.058463853 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.058463853 = score(doc=2763,freq=4.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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
  9. Rostaing, H.; Barts, N.; Léveillé, V.: Bibliometrics: representation instrument of the multidisciplinary positioning of a scientific area : Implementation for an Advisory Scientific Committee (2007) 0.01
    0.013780061 = product of:
      0.027560122 = sum of:
        0.027560122 = product of:
          0.055120245 = sum of:
            0.055120245 = weight(_text_:22 in 1144) [ClassicSimilarity], result of:
              0.055120245 = score(doc=1144,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    30.12.2007 11:22:39
  10. Levitt, J.M.; Thelwall, M.: Citation levels and collaboration within library and information science (2009) 0.01
    0.012179969 = product of:
      0.024359938 = sum of:
        0.024359938 = product of:
          0.048719876 = sum of:
            0.048719876 = weight(_text_:22 in 2734) [ClassicSimilarity], result of:
              0.048719876 = score(doc=2734,freq=4.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      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
  11. Burrell, Q.L.: Predicting future citation behavior (2003) 0.01
    0.012057554 = product of:
      0.024115108 = sum of:
        0.024115108 = product of:
          0.048230216 = sum of:
            0.048230216 = weight(_text_:22 in 3837) [ClassicSimilarity], result of:
              0.048230216 = score(doc=3837,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    29. 3.2003 19:22:48
  12. Leydesdorff, L.: Can networks of journal-journal citations be used as indicators of change in the social sciences? (2003) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 4460) [ClassicSimilarity], result of:
              0.041340183 = score(doc=4460,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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(1/2)
    
    Date
    6.11.2005 19:02:22
  13. Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
              0.041340183 = score(doc=5270,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 15:26:24
  14. Haycock, L.A.: Citation analysis of education dissertations for collection development (2004) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 135) [ClassicSimilarity], result of:
              0.041340183 = score(doc=135,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    10. 9.2000 17:38:22
  15. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
              0.041340183 = score(doc=201,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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
  16. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.041340183 = score(doc=994,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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
  17. Althouse, B.M.; West, J.D.; Bergstrom, C.T.; Bergstrom, T.: Differences in impact factor across fields and over time (2009) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 2695) [ClassicSimilarity], result of:
              0.041340183 = score(doc=2695,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    23. 2.2009 18:22:28
  18. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
              0.041340183 = score(doc=2742,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 17:49:11
  19. Camacho-Miñano, M.-del-Mar; Núñez-Nickel, M.: ¬The multilayered nature of reference selection (2009) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 2751) [ClassicSimilarity], result of:
              0.041340183 = score(doc=2751,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:05:07
  20. Raan, A.F.J. van: Scaling rules in the science system : influence of field-specific citation characteristics on the impact of research groups (2008) 0.01
    0.010335046 = product of:
      0.020670092 = sum of:
        0.020670092 = product of:
          0.041340183 = sum of:
            0.041340183 = weight(_text_:22 in 2758) [ClassicSimilarity], result of:
              0.041340183 = score(doc=2758,freq=2.0), product of:
                0.17808245 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.050854117 = 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)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:03:12