Search (11 results, page 1 of 1)

  • × theme_ss:"Citation indexing"
  • × theme_ss:"Informetrie"
  1. Száva-Kováts, E.: Indirect-collective referencing (ICR) in the elite journal literature of physics : I: a literature science study on the journal level (2001) 0.04
    0.037012145 = product of:
      0.07402429 = sum of:
        0.07402429 = product of:
          0.14804858 = sum of:
            0.14804858 = weight(_text_:plus in 5180) [ClassicSimilarity], result of:
              0.14804858 = score(doc=5180,freq=2.0), product of:
                0.3101809 = queryWeight, product of:
                  6.1714344 = idf(docFreq=250, maxDocs=44218)
                  0.05026075 = queryNorm
                0.4772975 = fieldWeight in 5180, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.1714344 = idf(docFreq=250, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=5180)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    In the second bibliometric paper SzavaKovtas uses ``indirectcollective references, ICR'' to mean such instances as those in which an author refers to, ``the references contained therein,'' when referring to another source. Having previously shown a high instance of occurrences in Physical Reviews, he now uses the January 1997 issues of 40 journals from the ISI physics category plus two optics journals, an instrumentation journal, and a physics journal launched in 1997, to locate ICR. The phenomena exists in all but one of the sampled journals and in the next, but unsampled, issue of that journal. Overall 17% of papers sampled display ICR with little fluctuation within internal categories.
  2. Abt, H.A.; Garfield, E.: Is the relationship between numbers of references and paper lengths the same for all sciences? (2002) 0.03
    0.031724695 = product of:
      0.06344939 = sum of:
        0.06344939 = product of:
          0.12689878 = sum of:
            0.12689878 = weight(_text_:plus in 5223) [ClassicSimilarity], result of:
              0.12689878 = score(doc=5223,freq=2.0), product of:
                0.3101809 = queryWeight, product of:
                  6.1714344 = idf(docFreq=250, maxDocs=44218)
                  0.05026075 = queryNorm
                0.40911216 = fieldWeight in 5223, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.1714344 = idf(docFreq=250, maxDocs=44218)
                  0.046875 = fieldNorm(doc=5223)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    It has been shown in the physical sciences that a paper's length is related to its number of references in a linear manner. Abt and Garfield here look at the life and social sciences with the thought that if the relation holds the citation counts will provide a measure of relative importance across these disciplines. In the life sciences 200 research papers from 1999-2000 were scanned in each of 10 journals to produce counts of 1000 word normalized pages. In the social sciences an average of 70 research papers in nine journals were scanned for the two-year period. Papers of average length in the various sciences have the same average number of references within plus or minus 17%. A look at the 30 to 60 papers over the two years in 18 review journals indicates twice the references of research papers of the same length.
  3. Nicolaisen, J.: Citation analysis (2007) 0.03
    0.02723855 = product of:
      0.0544771 = sum of:
        0.0544771 = product of:
          0.1089542 = sum of:
            0.1089542 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.1089542 = score(doc=6091,freq=2.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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
  4. Case, D.O.; Higgins, G.M.: How can we investigate citation behavior? : A study of reasons for citing literature in communication (2000) 0.03
    0.026437245 = product of:
      0.05287449 = sum of:
        0.05287449 = product of:
          0.10574898 = sum of:
            0.10574898 = weight(_text_:plus in 4775) [ClassicSimilarity], result of:
              0.10574898 = score(doc=4775,freq=2.0), product of:
                0.3101809 = queryWeight, product of:
                  6.1714344 = idf(docFreq=250, maxDocs=44218)
                  0.05026075 = queryNorm
                0.3409268 = fieldWeight in 4775, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.1714344 = idf(docFreq=250, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=4775)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Authors' motivation for citing documents are addressed through a literature review and an empirical study. Replicating an investigation in psychology, the works of 2 highly-cited authors in the discipline of communication were identified, and all of the authros who cited them during the period 1995-1997 were surveyed. The instrument posed 32 questions about why a certain document was cited, plus questions about the citer's relationship to the cited author and document. Most findings were similar to the psychology study, including a tendency to cite 'concept markers' representing a genre of work. Authors in communication were more likely to have an interpersonal connection to cited authors, and to cite literatire reviews - their most common reason for citation. 3 types of judgements about cited works were found to best predict citation: (1) that the work was novel, well-known, and a concept-marker; (2) that citing it might promote the authority of one's own work; and (3) that the work deserved criticism. Suggestions are made for further research, especially regarding the anomalous role of creativity in cited works
  5. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.02
    0.024075704 = product of:
      0.048151407 = sum of:
        0.048151407 = product of:
          0.096302815 = sum of:
            0.096302815 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.096302815 = score(doc=3925,freq=4.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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
  6. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01
    0.014445423 = product of:
      0.028890846 = sum of:
        0.028890846 = product of:
          0.057781693 = sum of:
            0.057781693 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.057781693 = score(doc=2763,freq=4.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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
  7. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.01
    0.010214455 = product of:
      0.02042891 = sum of:
        0.02042891 = product of:
          0.04085782 = sum of:
            0.04085782 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
              0.04085782 = score(doc=201,freq=2.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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
  8. H-Index auch im Web of Science (2008) 0.01
    0.010214455 = product of:
      0.02042891 = sum of:
        0.02042891 = product of:
          0.04085782 = sum of:
            0.04085782 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
              0.04085782 = score(doc=590,freq=2.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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
  9. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.01
    0.010214455 = product of:
      0.02042891 = sum of:
        0.02042891 = product of:
          0.04085782 = sum of:
            0.04085782 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.04085782 = score(doc=994,freq=2.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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
  10. Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008) 0.01
    0.008512047 = product of:
      0.017024094 = sum of:
        0.017024094 = product of:
          0.03404819 = sum of:
            0.03404819 = weight(_text_:22 in 1934) [ClassicSimilarity], result of:
              0.03404819 = score(doc=1934,freq=2.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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
  11. Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003) 0.01
    0.0068096374 = product of:
      0.013619275 = sum of:
        0.013619275 = product of:
          0.02723855 = sum of:
            0.02723855 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
              0.02723855 = score(doc=5171,freq=2.0), product of:
                0.17600457 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.05026075 = 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)
      0.5 = coord(1/2)
    
    Date
    9. 7.2006 10:22:35