Search (70 results, page 1 of 4)

  • × theme_ss:"Citation indexing"
  1. Nicolaisen, J.: Citation analysis (2007) 0.06
    0.059740834 = product of:
      0.11948167 = sum of:
        0.11948167 = product of:
          0.1792225 = sum of:
            0.08092907 = weight(_text_:j in 6091) [ClassicSimilarity], result of:
              0.08092907 = score(doc=6091,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.5617073 = fieldWeight in 6091, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.125 = fieldNorm(doc=6091)
            0.098293416 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.098293416 = score(doc=6091,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    13. 7.2008 19:53:22
  2. Lindholm-Romantschuk, Y.: Scholarly book reviewing in the social sciences and humanities : the flow of ides within and among disciplines (1998) 0.03
    0.027200937 = product of:
      0.054401875 = sum of:
        0.054401875 = product of:
          0.08160281 = sum of:
            0.031022143 = weight(_text_:m in 4063) [ClassicSimilarity], result of:
              0.031022143 = score(doc=4063,freq=2.0), product of:
                0.11283351 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.04534291 = queryNorm
                0.27493733 = fieldWeight in 4063, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4063)
            0.05058067 = weight(_text_:j in 4063) [ClassicSimilarity], result of:
              0.05058067 = score(doc=4063,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.35106707 = fieldWeight in 4063, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4063)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Footnote
    Rez. in: JASIS 50(1999) no.13, S.1259-1261 (J. Andersen)
    Type
    m
  3. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.02
    0.022402812 = product of:
      0.044805624 = sum of:
        0.044805624 = product of:
          0.06720843 = sum of:
            0.030348403 = weight(_text_:j in 994) [ClassicSimilarity], result of:
              0.030348403 = score(doc=994,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.21064025 = fieldWeight in 994, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=994)
            0.03686003 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.03686003 = score(doc=994,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = 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)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    26.12.2007 19:22:05
  4. Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008) 0.02
    0.022402812 = product of:
      0.044805624 = sum of:
        0.044805624 = product of:
          0.06720843 = sum of:
            0.030348403 = weight(_text_:j in 2064) [ClassicSimilarity], result of:
              0.030348403 = score(doc=2064,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.21064025 = fieldWeight in 2064, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.046875 = fieldNorm(doc=2064)
            0.03686003 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
              0.03686003 = score(doc=2064,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = queryNorm
                0.23214069 = fieldWeight in 2064, 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=2064)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    31. 7.2008 14:22:05
  5. Howard, D.L.: What the eye sees while predicitng a document's pertinence from its citation (1991) 0.02
    0.02176075 = product of:
      0.0435215 = sum of:
        0.0435215 = product of:
          0.06528225 = sum of:
            0.024817714 = weight(_text_:m in 3675) [ClassicSimilarity], result of:
              0.024817714 = score(doc=3675,freq=2.0), product of:
                0.11283351 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.04534291 = queryNorm
                0.21994986 = fieldWeight in 3675, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3675)
            0.040464535 = weight(_text_:j in 3675) [ClassicSimilarity], result of:
              0.040464535 = score(doc=3675,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.28085366 = fieldWeight in 3675, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3675)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Source
    ASIS '91: systems understanding people. proc. of the 54th Annual Meeting of the ASIS, vol.28, Washington, DC, 27.-31.10.1991. Ed.: J.-M. Griffiths
  6. Ding, Y.; Zhang, G.; Chambers, T.; Song, M.; Wang, X.; Zhai, C.: Content-based citation analysis : the next generation of citation analysis (2014) 0.02
    0.018491106 = product of:
      0.036982212 = sum of:
        0.036982212 = product of:
          0.055473316 = sum of:
            0.018613286 = weight(_text_:m in 1521) [ClassicSimilarity], result of:
              0.018613286 = score(doc=1521,freq=2.0), product of:
                0.11283351 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.04534291 = queryNorm
                0.1649624 = fieldWeight in 1521, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1521)
            0.03686003 = weight(_text_:22 in 1521) [ClassicSimilarity], result of:
              0.03686003 = score(doc=1521,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = queryNorm
                0.23214069 = fieldWeight in 1521, 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=1521)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Date
    22. 8.2014 16:52:04
  7. Thelwall, M.; Kousha, K.; Stuart, E.; Makita, M.; Abdoli, M.; Wilson, P.; Levitt, J.: In which fields are citations indicators of research quality? (2023) 0.02
    0.017385434 = product of:
      0.03477087 = sum of:
        0.03477087 = product of:
          0.0521563 = sum of:
            0.026865963 = weight(_text_:m in 1033) [ClassicSimilarity], result of:
              0.026865963 = score(doc=1033,freq=6.0), product of:
                0.11283351 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.04534291 = queryNorm
                0.2381027 = fieldWeight in 1033, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1033)
            0.025290335 = weight(_text_:j in 1033) [ClassicSimilarity], result of:
              0.025290335 = score(doc=1033,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.17553353 = fieldWeight in 1033, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1033)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
  8. Døsen, K.: One more reference on self-reference (1992) 0.02
    0.016382236 = product of:
      0.032764472 = sum of:
        0.032764472 = product of:
          0.098293416 = sum of:
            0.098293416 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
              0.098293416 = score(doc=4604,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = queryNorm
                0.61904186 = fieldWeight in 4604, 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=4604)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    7. 2.2005 14:10:22
  9. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.01
    0.014479987 = product of:
      0.028959975 = sum of:
        0.028959975 = product of:
          0.086879924 = sum of:
            0.086879924 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.086879924 = score(doc=3925,freq=4.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 15:22:28
  10. Gorraiz, J.: ¬Die unerträgliche Bedeutung der Zitate (1992) 0.01
    0.013488179 = product of:
      0.026976358 = sum of:
        0.026976358 = product of:
          0.08092907 = sum of:
            0.08092907 = weight(_text_:j in 2824) [ClassicSimilarity], result of:
              0.08092907 = score(doc=2824,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.5617073 = fieldWeight in 2824, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.125 = fieldNorm(doc=2824)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  11. De Bellis, N.: Bibliometrics and citation analysis : from the Science citation index to cybermetrics (2008) 0.01
    0.012593681 = product of:
      0.025187362 = sum of:
        0.025187362 = product of:
          0.03778104 = sum of:
            0.017548773 = weight(_text_:m in 3585) [ClassicSimilarity], result of:
              0.017548773 = score(doc=3585,freq=4.0), product of:
                0.11283351 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.04534291 = queryNorm
                0.15552804 = fieldWeight in 3585, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3585)
            0.020232268 = weight(_text_:j in 3585) [ClassicSimilarity], result of:
              0.020232268 = score(doc=3585,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.14042683 = fieldWeight in 3585, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3585)
          0.6666667 = coord(2/3)
      0.5 = coord(1/2)
    
    Footnote
    Rez. in: JASIS 61(2010) no.1, S.205-207 (Jeppe Nicolaisen) Weitere Rez. in: Mitt VÖB 63(2010) H.1/2, S.134-135 (J. Gorraiz u. M. Wieland): "Das Buch entwickelte sich aus einem mehrjährigen Forschungsprojekt mit dem Ziel, den schwer verständlichen quantitativen Kern der Bibliometrie in einem für primär italienische Bibliothekare leichteren historischen und philosophischen Kontext zu vermitteln, wie der Autor im Vorwort erklärt. Dank einer Empfehlung von Eugene Garfield steht dieses Werk nun auch in englischer Übersetzung einer internationalen Leserschaft zur Verfügung. Die über 400 Seiten lange Monografie von de Bellis gibt in acht Kapiteln einen detaillierten und sehr präzisen Überblick über die Bibliometrie und die Zitationsanalyse, ihre Natur und Entwicklung, ihre Kontroverse und Prognose. . . . Das Buch von de Bellis ist sehr empfehlenswert für alle die beabsichtigen, sich mit dieser neuen Wissenschaft zu beschäftigen. Es endet mit folgendem Statement: "Scientometricians have to learn to live in a multidimensional world". Und genau hier liegt die Herausforderung und Schönheit dieses Metiers."
    Type
    m
  12. Nicolaisen, J.: ¬The J-shaped distribution of citedness (2002) 0.01
    0.011681106 = product of:
      0.023362212 = sum of:
        0.023362212 = product of:
          0.070086636 = sum of:
            0.070086636 = weight(_text_:j in 3765) [ClassicSimilarity], result of:
              0.070086636 = score(doc=3765,freq=6.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.48645282 = fieldWeight in 3765, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0625 = fieldNorm(doc=3765)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    A new approach for investigating the correlation between research quality and citation counts is presented and applied to a case study of the relationship between peer evaluations reflected in scholarly book reviews and the citation frequencies of reviewed books. Results of the study designate a J-shaped distribution between the considered variables, presumably caused by a skewed allocation of negative citations. The paper concludes with suggestions for further research.
  13. Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002) 0.01
    0.010238898 = product of:
      0.020477796 = sum of:
        0.020477796 = product of:
          0.061433386 = sum of:
            0.061433386 = weight(_text_:22 in 613) [ClassicSimilarity], result of:
              0.061433386 = score(doc=613,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = queryNorm
                0.38690117 = fieldWeight in 613, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=613)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Source
    Password. 2002, H.6, S.22-25
  14. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01
    0.0086879935 = product of:
      0.017375987 = sum of:
        0.017375987 = product of:
          0.05212796 = sum of:
            0.05212796 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.05212796 = score(doc=2763,freq=4.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = 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)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    22. 3.2009 19:22:35
  15. Fröhlich, G.: ¬Das Messen des leicht Meßbaren : Output-Indikatoren, Impact-Maße: Artefakte der Szeintometrie? (1999) 0.01
    0.008430112 = product of:
      0.016860224 = sum of:
        0.016860224 = product of:
          0.05058067 = sum of:
            0.05058067 = weight(_text_:j in 4379) [ClassicSimilarity], result of:
              0.05058067 = score(doc=4379,freq=2.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.35106707 = fieldWeight in 4379, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.078125 = fieldNorm(doc=4379)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Footnote
    Zuerst publiziert in: Kommunikation statt Markt: Zu einer alternativen Theorie der Informationsgesellschaft. Hrsg.: J. Becker u. W. Göhring. Sankt Augustin: GMD. (GMD Report; 61) S.27-38.
  16. Moed, H.F.; Vriens, M.: Possible inaccuracies occuring in citation analysis (1989) 0.01
    0.0082725715 = product of:
      0.016545143 = sum of:
        0.016545143 = product of:
          0.04963543 = sum of:
            0.04963543 = weight(_text_:m in 6900) [ClassicSimilarity], result of:
              0.04963543 = score(doc=6900,freq=2.0), product of:
                0.11283351 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.04534291 = queryNorm
                0.4398997 = fieldWeight in 6900, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.125 = fieldNorm(doc=6900)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
  17. Cronin, B.: ¬The citation process : the role and significance in scientific communication (1984) 0.01
    0.0082725715 = product of:
      0.016545143 = sum of:
        0.016545143 = product of:
          0.04963543 = sum of:
            0.04963543 = weight(_text_:m in 7774) [ClassicSimilarity], result of:
              0.04963543 = score(doc=7774,freq=2.0), product of:
                0.11283351 = queryWeight, product of:
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.04534291 = queryNorm
                0.4398997 = fieldWeight in 7774, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  2.4884486 = idf(docFreq=9980, maxDocs=44218)
                  0.125 = fieldNorm(doc=7774)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Type
    m
  18. Bensman, S.J.: Eugene Garfield, Francis Narin, and PageRank : the theoretical bases of the Google search engine (2013) 0.01
    0.008191118 = product of:
      0.016382236 = sum of:
        0.016382236 = product of:
          0.049146708 = sum of:
            0.049146708 = weight(_text_:22 in 1149) [ClassicSimilarity], result of:
              0.049146708 = score(doc=1149,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = queryNorm
                0.30952093 = fieldWeight in 1149, 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=1149)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    17.12.2013 11:02:22
  19. Pudovkin, A.I.; Garfield, E.: Algorithmic procedure for finding semantically related journals (2002) 0.01
    0.007300691 = product of:
      0.014601382 = sum of:
        0.014601382 = product of:
          0.043804146 = sum of:
            0.043804146 = weight(_text_:j in 5220) [ClassicSimilarity], result of:
              0.043804146 = score(doc=5220,freq=6.0), product of:
                0.14407694 = queryWeight, product of:
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.04534291 = queryNorm
                0.304033 = fieldWeight in 5220, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  3.1774964 = idf(docFreq=5010, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5220)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Abstract
    Journal Citation Reports provides a classification of journals most heavily cited by a given journal and which most heavily cite that journal, but size variation is not taken into account. Pudovkin and Garfield suggest a procedure for meeting this difficulty. The relatedness of journal i to journal j is determined by the number of citations from journal i to journal j in a given year normalized by the product of the papers published in the j journal in that year times the number of references cited in the i journal in that year. A multiplier of ten to the sixth is suggested to bring the values into an easily perceptible range. While citations received depend upon the overall cumulative number of papers published by a journal, the current year is utilized since that data is available in JCR. Citations to current year papers would be quite low in most fields and thus not included. To produce the final index, the maximum of the A citing B value, and the B citing A value is chosen and used to indicate the closeness of the journals. The procedure is illustrated for the journal Genetics.
  20. Garfield, E.: Recollections of Irving H. Sher 1924-1996 : Polymath/information scientist extraordinaire (2001) 0.01
    0.0071672285 = product of:
      0.014334457 = sum of:
        0.014334457 = product of:
          0.04300337 = sum of:
            0.04300337 = weight(_text_:22 in 6920) [ClassicSimilarity], result of:
              0.04300337 = score(doc=6920,freq=2.0), product of:
                0.15878315 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.04534291 = queryNorm
                0.2708308 = fieldWeight in 6920, 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=6920)
          0.33333334 = coord(1/3)
      0.5 = coord(1/2)
    
    Date
    16.12.2001 14:01:22

Languages

  • e 56
  • d 13
  • chi 1
  • More… Less…

Types

  • a 64
  • m 6
  • el 4
  • s 1
  • More… Less…