Search (58 results, page 1 of 3)

  • × year_i:[2000 TO 2010}
  • × theme_ss:"Informetrie"
  1. Kousha, K.; Thelwall, M.: How is science cited on the Web? : a classification of google unique Web citations (2007) 0.01 
    0.010785515 = product of:
  0.02157103 = sum of:
    0.008828139 = product of:
      0.026484415 = sum of:
        0.026484415 = weight(_text_:k in 586) [ClassicSimilarity], result of:
          0.026484415 = score(doc=586,freq=2.0), product of:
            0.13429943 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.037621226 = queryNorm
            0.19720423 = fieldWeight in 586, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.0390625 = fieldNorm(doc=586)
      0.33333334 = coord(1/3)
    0.012742892 = product of:
      0.025485784 = sum of:
        0.025485784 = weight(_text_:22 in 586) [ClassicSimilarity], result of:
          0.025485784 = score(doc=586,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = queryNorm
            0.19345059 = fieldWeight in 586, 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=586)
      0.5 = coord(1/2)
  0.5 = coord(2/4)
    Abstract
    Although the analysis of citations in the scholarly literature is now an established and relatively well understood part of information science, not enough is known about citations that can be found on the Web. In particular, are there new Web types, and if so, are these trivial or potentially useful for studying or evaluating research communication? We sought evidence based upon a sample of 1,577 Web citations of the URLs or titles of research articles in 64 open-access journals from biology, physics, chemistry, and computing. Only 25% represented intellectual impact, from references of Web documents (23%) and other informal scholarly sources (2%). Many of the Web/URL citations were created for general or subject-specific navigation (45%) or for self-publicity (22%). Additional analyses revealed significant disciplinary differences in the types of Google unique Web/URL citations as well as some characteristics of scientific open-access publishing on the Web. We conclude that the Web provides access to a new and different type of citation information, one that may therefore enable us to measure different aspects of research, and the research process in particular; but to obtain good information, the different types should be separated.
  2. Shibata, N.; Kajikawa, Y.; Takeda, Y.; Matsushima, K.: Comparative study on methods of detecting research fronts using different types of citation (2009) 0.01 
    0.010785515 = product of:
  0.02157103 = sum of:
    0.008828139 = product of:
      0.026484415 = sum of:
        0.026484415 = weight(_text_:k in 2743) [ClassicSimilarity], result of:
          0.026484415 = score(doc=2743,freq=2.0), product of:
            0.13429943 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.037621226 = queryNorm
            0.19720423 = fieldWeight in 2743, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2743)
      0.33333334 = coord(1/3)
    0.012742892 = product of:
      0.025485784 = sum of:
        0.025485784 = weight(_text_:22 in 2743) [ClassicSimilarity], result of:
          0.025485784 = score(doc=2743,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = queryNorm
            0.19345059 = fieldWeight in 2743, 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=2743)
      0.5 = coord(1/2)
  0.5 = coord(2/4)
    Date
    22. 3.2009 17:52:50
  3. Nicolaisen, J.: Citation analysis (2007) 0.01 
    0.010194313 = product of:
  0.04077725 = sum of:
    0.04077725 = product of:
      0.0815545 = sum of:
        0.0815545 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
          0.0815545 = score(doc=6091,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    13. 7.2008 19:53:22
  4. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.01 
    0.009010585 = product of:
  0.03604234 = sum of:
    0.03604234 = product of:
      0.07208468 = sum of:
        0.07208468 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
          0.07208468 = score(doc=3925,freq=4.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    22. 7.2006 15:22:28
  5. Lewison, G.: ¬The work of the Bibliometrics Research Group (City University) and associates (2005) 0.01 
    0.0076457346 = product of:
  0.030582938 = sum of:
    0.030582938 = product of:
      0.061165877 = sum of:
        0.061165877 = weight(_text_:22 in 4890) [ClassicSimilarity], result of:
          0.061165877 = score(doc=4890,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    20. 1.2007 17:02:22
  6. Raan, A.F.J. van: Statistical properties of bibliometric indicators : research group indicator distributions and correlations (2006) 0.01 
    0.0054063513 = product of:
  0.021625405 = sum of:
    0.021625405 = product of:
      0.04325081 = sum of:
        0.04325081 = weight(_text_:22 in 5275) [ClassicSimilarity], result of:
          0.04325081 = score(doc=5275,freq=4.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    22. 7.2006 16:20:22
  7. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01 
    0.0054063513 = product of:
  0.021625405 = sum of:
    0.021625405 = product of:
      0.04325081 = sum of:
        0.04325081 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
          0.04325081 = score(doc=2763,freq=4.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    22. 3.2009 19:22:35
  8. Thelwall, M.; Ruschenburg, T.: Grundlagen und Forschungsfelder der Webometrie (2006) 0.01 
    0.0050971564 = product of:
  0.020388626 = sum of:
    0.020388626 = product of:
      0.04077725 = sum of:
        0.04077725 = weight(_text_:22 in 77) [ClassicSimilarity], result of:
          0.04077725 = score(doc=77,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    4.12.2006 12:12:22
  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 
    0.0050971564 = product of:
  0.020388626 = sum of:
    0.020388626 = product of:
      0.04077725 = sum of:
        0.04077725 = weight(_text_:22 in 1144) [ClassicSimilarity], result of:
          0.04077725 = score(doc=1144,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    30.12.2007 11:22:39
  10. Järvelin, K.; Persson, O.: ¬The DCI-index : discounted cumulated impact-based research evaluation (2008) 0.00 
    0.0049939496 = product of:
  0.019975798 = sum of:
    0.019975798 = product of:
      0.059927393 = sum of:
        0.059927393 = weight(_text_:k in 2332) [ClassicSimilarity], result of:
          0.059927393 = score(doc=2332,freq=4.0), product of:
            0.13429943 = queryWeight, product of:
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.037621226 = queryNorm
            0.44622225 = fieldWeight in 2332, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.569778 = idf(docFreq=3384, maxDocs=44218)
              0.0625 = fieldNorm(doc=2332)
      0.33333334 = coord(1/3)
  0.25 = coord(1/4)
    Abstract
    The article by K. Järvelin & O. Persson published in JASIST 59(9), The DCI-Index: Discounted Cumulated Impact-Based Research Evaluation, (pp. 1433-1440) contains an unfortunate error in one of its formulas, Equation 3. The present paper gives the correction and an example of impact analysis based on the corrected formula.
  11. Levitt, J.M.; Thelwall, M.: Citation levels and collaboration within library and information science (2009) 0.00 
    0.0045052925 = product of:
  0.01802117 = sum of:
    0.01802117 = product of:
      0.03604234 = sum of:
        0.03604234 = weight(_text_:22 in 2734) [ClassicSimilarity], result of:
          0.03604234 = score(doc=2734,freq=4.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    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
  12. Burrell, Q.L.: Predicting future citation behavior (2003) 0.00 
    0.004460012 = product of:
  0.017840048 = sum of:
    0.017840048 = product of:
      0.035680097 = sum of:
        0.035680097 = weight(_text_:22 in 3837) [ClassicSimilarity], result of:
          0.035680097 = score(doc=3837,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    29. 3.2003 19:22:48
  13. Leydesdorff, L.: Can networks of journal-journal citations be used as indicators of change in the social sciences? (2003) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 4460) [ClassicSimilarity], result of:
          0.030582938 = score(doc=4460,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    6.11.2005 19:02:22
  14. Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
          0.030582938 = score(doc=5270,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    22. 7.2006 15:26:24
  15. Haycock, L.A.: Citation analysis of education dissertations for collection development (2004) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 135) [ClassicSimilarity], result of:
          0.030582938 = score(doc=135,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    10. 9.2000 17:38:22
  16. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
          0.030582938 = score(doc=201,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    3. 1.2007 17:22:03
  17. H-Index auch im Web of Science (2008) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
          0.030582938 = score(doc=590,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    6. 4.2008 19:04:22
  18. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
          0.030582938 = score(doc=994,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    26.12.2007 19:22:05
  19. Althouse, B.M.; West, J.D.; Bergstrom, C.T.; Bergstrom, T.: Differences in impact factor across fields and over time (2009) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 2695) [ClassicSimilarity], result of:
          0.030582938 = score(doc=2695,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    23. 2.2009 18:22:28
  20. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.00 
    0.0038228673 = product of:
  0.015291469 = sum of:
    0.015291469 = product of:
      0.030582938 = sum of:
        0.030582938 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
          0.030582938 = score(doc=2742,freq=2.0), product of:
            0.13174312 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.037621226 = 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)
  0.25 = coord(1/4)
    Date
    22. 3.2009 17:49:11

Authors

Languages

  • e 44
  • d 14

Types

  • a 56
  • el 1
  • m 1
  • r 1
  • More… Less…

Themes

Classifications