Search (269 results, page 1 of 14)

  • × theme_ss:"Informetrie"
  1. Su, Y.; Han, L.-F.: ¬A new literature growth model : variable exponential growth law of literature (1998) 0.07 
    0.06619373 = product of:
  0.13238746 = sum of:
    0.13238746 = product of:
      0.19858119 = sum of:
        0.11355108 = weight(_text_:y in 3690) [ClassicSimilarity], result of:
          0.11355108 = score(doc=3690,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.53170013 = fieldWeight in 3690, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.078125 = fieldNorm(doc=3690)
        0.085030116 = weight(_text_:22 in 3690) [ClassicSimilarity], result of:
          0.085030116 = score(doc=3690,freq=4.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.54716086 = fieldWeight in 3690, 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=3690)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 5.1999 19:22:35
  2. Chang, Y.-W.; Huang, M.-H.: ¬A study of the evolution of interdisciplinarity in library and information science : using three bibliometric methods (2012) 0.06 
    0.06121999 = product of:
  0.12243998 = sum of:
    0.12243998 = sum of:
      0.035601754 = weight(_text_:w in 4959) [ClassicSimilarity], result of:
        0.035601754 = score(doc=4959,freq=2.0), product of:
          0.169114 = queryWeight, product of:
            3.8108058 = idf(docFreq=2659, maxDocs=44218)
            0.04437749 = queryNorm
          0.21051927 = fieldWeight in 4959, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.8108058 = idf(docFreq=2659, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4959)
      0.05677554 = weight(_text_:y in 4959) [ClassicSimilarity], result of:
        0.05677554 = score(doc=4959,freq=2.0), product of:
          0.21356225 = queryWeight, product of:
            4.8124003 = idf(docFreq=976, maxDocs=44218)
            0.04437749 = queryNorm
          0.26585007 = fieldWeight in 4959, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.8124003 = idf(docFreq=976, maxDocs=44218)
            0.0390625 = fieldNorm(doc=4959)
      0.030062687 = weight(_text_:22 in 4959) [ClassicSimilarity], result of:
        0.030062687 = score(doc=4959,freq=2.0), product of:
          0.1554024 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04437749 = queryNorm
          0.19345059 = fieldWeight in 4959, 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=4959)
  0.5 = coord(1/2)
    Source
    Journal of the American Society for Information Science and Technology. 63(2012) no.1, S.22-33
  3. Vakkari, P.; Järvelin, K.; Chang, Y.-W.: ¬The association of disciplinary background with the evolution of topics and methods in Library and Information Science research 1995-2015 (2023) 0.06 
    0.06121999 = product of:
  0.12243998 = sum of:
    0.12243998 = sum of:
      0.035601754 = weight(_text_:w in 998) [ClassicSimilarity], result of:
        0.035601754 = score(doc=998,freq=2.0), product of:
          0.169114 = queryWeight, product of:
            3.8108058 = idf(docFreq=2659, maxDocs=44218)
            0.04437749 = queryNorm
          0.21051927 = fieldWeight in 998, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            3.8108058 = idf(docFreq=2659, maxDocs=44218)
            0.0390625 = fieldNorm(doc=998)
      0.05677554 = weight(_text_:y in 998) [ClassicSimilarity], result of:
        0.05677554 = score(doc=998,freq=2.0), product of:
          0.21356225 = queryWeight, product of:
            4.8124003 = idf(docFreq=976, maxDocs=44218)
            0.04437749 = queryNorm
          0.26585007 = fieldWeight in 998, product of:
            1.4142135 = tf(freq=2.0), with freq of:
              2.0 = termFreq=2.0
            4.8124003 = idf(docFreq=976, maxDocs=44218)
            0.0390625 = fieldNorm(doc=998)
      0.030062687 = weight(_text_:22 in 998) [ClassicSimilarity], result of:
        0.030062687 = score(doc=998,freq=2.0), product of:
          0.1554024 = queryWeight, product of:
            3.5018296 = idf(docFreq=3622, maxDocs=44218)
            0.04437749 = queryNorm
          0.19345059 = fieldWeight in 998, 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=998)
  0.5 = coord(1/2)
    Date
    22. 6.2023 18:15:06
  4. Rostaing, H.; Barts, N.; Léveillé, V.: Bibliometrics: representation instrument of the multidisciplinary positioning of a scientific area : Implementation for an Advisory Scientific Committee (2007) 0.06 
    0.058856227 = product of:
  0.11771245 = sum of:
    0.11771245 = product of:
      0.17656867 = sum of:
        0.12846838 = weight(_text_:y in 1144) [ClassicSimilarity], result of:
          0.12846838 = score(doc=1144,freq=4.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.60155004 = fieldWeight in 1144, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0625 = fieldNorm(doc=1144)
        0.048100296 = weight(_text_:22 in 1144) [ClassicSimilarity], result of:
          0.048100296 = score(doc=1144,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    30.12.2007 11:22:39
    Source
    ¬La interdisciplinariedad y la transdisciplinariedad en la organización del conocimiento científico : actas del VIII Congreso ISKO-España, León, 18, 19 y 20 de Abril de 2007 : Interdisciplinarity and transdisciplinarity in the organization of scientific knowledge. Ed.: B. Rodriguez Bravo u. M.L Alvite Diez
  5. Marx, W.; Bornmann, L.: On the problems of dealing with bibliometric data (2014) 0.05 
    0.05253155 = product of:
  0.1050631 = sum of:
    0.1050631 = product of:
      0.15759465 = sum of:
        0.085444205 = weight(_text_:w in 1239) [ClassicSimilarity], result of:
          0.085444205 = score(doc=1239,freq=2.0), product of:
            0.169114 = queryWeight, product of:
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.04437749 = queryNorm
            0.5052462 = fieldWeight in 1239, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.09375 = fieldNorm(doc=1239)
        0.07215045 = weight(_text_:22 in 1239) [ClassicSimilarity], result of:
          0.07215045 = score(doc=1239,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.46428138 = fieldWeight in 1239, 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=1239)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    18. 3.2014 19:13:22
  6. Bu, Y.; Li, M.; Gu, W.; Huang, W.-b.: Topic diversity : a discipline scheme-free diversity measurement for journals (2021) 0.05 
    0.049991213 = product of:
  0.099982426 = sum of:
    0.099982426 = product of:
      0.14997363 = sum of:
        0.07048787 = weight(_text_:w in 209) [ClassicSimilarity], result of:
          0.07048787 = score(doc=209,freq=4.0), product of:
            0.169114 = queryWeight, product of:
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.04437749 = queryNorm
            0.41680688 = fieldWeight in 209, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.0546875 = fieldNorm(doc=209)
        0.07948575 = weight(_text_:y in 209) [ClassicSimilarity], result of:
          0.07948575 = score(doc=209,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3721901 = fieldWeight in 209, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0546875 = fieldNorm(doc=209)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
  7. Liu, M.; Bu, Y.; Chen, C.; Xu, J.; Li, D.; Leng, Y.; Freeman, R.B.; Meyer, E.T.; Yoon, W.; Sung, M.; Jeong, M.; Lee, J.; Kang, J.; Min, C.; Zhai, Y.; Song, M.; Ding, Y.: Pandemics are catalysts of scientific novelty : evidence from COVID-19 (2022) 0.05 
    0.049717613 = product of:
  0.099435225 = sum of:
    0.099435225 = product of:
      0.14915283 = sum of:
        0.035601754 = weight(_text_:w in 633) [ClassicSimilarity], result of:
          0.035601754 = score(doc=633,freq=2.0), product of:
            0.169114 = queryWeight, product of:
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.04437749 = queryNorm
            0.21051927 = fieldWeight in 633, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.0390625 = fieldNorm(doc=633)
        0.11355108 = weight(_text_:y in 633) [ClassicSimilarity], result of:
          0.11355108 = score(doc=633,freq=8.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.53170013 = fieldWeight in 633, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0390625 = fieldNorm(doc=633)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
  8. Chongde, W.; Zhe, W.: Evaluation of the models for Bradford's law (1998) 0.04 
    0.042885955 = product of:
  0.08577191 = sum of:
    0.08577191 = product of:
      0.12865786 = sum of:
        0.08055757 = weight(_text_:w in 3688) [ClassicSimilarity], result of:
          0.08055757 = score(doc=3688,freq=4.0), product of:
            0.169114 = queryWeight, product of:
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.04437749 = queryNorm
            0.47635072 = fieldWeight in 3688, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.0625 = fieldNorm(doc=3688)
        0.048100296 = weight(_text_:22 in 3688) [ClassicSimilarity], result of:
          0.048100296 = score(doc=3688,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.30952093 = fieldWeight in 3688, 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=3688)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 5.1999 19:12:28
  9. Ding, Y.: Applying weighted PageRank to author citation networks (2011) 0.04 
    0.040524505 = product of:
  0.08104901 = sum of:
    0.08104901 = product of:
      0.12157351 = sum of:
        0.07948575 = weight(_text_:y in 4188) [ClassicSimilarity], result of:
          0.07948575 = score(doc=4188,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3721901 = fieldWeight in 4188, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0546875 = fieldNorm(doc=4188)
        0.04208776 = weight(_text_:22 in 4188) [ClassicSimilarity], result of:
          0.04208776 = score(doc=4188,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.2708308 = fieldWeight in 4188, 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=4188)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 1.2011 13:02:21
  10. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.04 
    0.039716244 = product of:
  0.07943249 = sum of:
    0.07943249 = product of:
      0.119148724 = sum of:
        0.06813065 = weight(_text_:y in 2763) [ClassicSimilarity], result of:
          0.06813065 = score(doc=2763,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3190201 = fieldWeight in 2763, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=2763)
        0.051018074 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
          0.051018074 = score(doc=2763,freq=4.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 3.2009 19:22:35
  11. Chang, Y.-W.: Influence of human behavior and the principle of least effort on library and information science research (2016) 0.04 
    0.036950916 = product of:
  0.07390183 = sum of:
    0.07390183 = product of:
      0.11085275 = sum of:
        0.042722102 = weight(_text_:w in 2973) [ClassicSimilarity], result of:
          0.042722102 = score(doc=2973,freq=2.0), product of:
            0.169114 = queryWeight, product of:
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.04437749 = queryNorm
            0.2526231 = fieldWeight in 2973, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.8108058 = idf(docFreq=2659, maxDocs=44218)
              0.046875 = fieldNorm(doc=2973)
        0.06813065 = weight(_text_:y in 2973) [ClassicSimilarity], result of:
          0.06813065 = score(doc=2973,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3190201 = fieldWeight in 2973, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=2973)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
  12. Shibata, N.; Kajikawa, Y.; Takeda, Y.; Matsushima, K.: Comparative study on methods of detecting research fronts using different types of citation (2009) 0.04 
    0.03678514 = product of:
  0.07357028 = sum of:
    0.07357028 = product of:
      0.11035542 = sum of:
        0.08029274 = weight(_text_:y in 2743) [ClassicSimilarity], result of:
          0.08029274 = score(doc=2743,freq=4.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.37596878 = fieldWeight in 2743, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2743)
        0.030062687 = weight(_text_:22 in 2743) [ClassicSimilarity], result of:
          0.030062687 = score(doc=2743,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 3.2009 17:52:50
  13. Wang, S.; Ma, Y.; Mao, J.; Bai, Y.; Liang, Z.; Li, G.: Quantifying scientific breakthroughs by a novel disruption indicator based on knowledge entities : On the rise of scrape-and-report scholarship in online reviews research (2023) 0.04 
    0.03678514 = product of:
  0.07357028 = sum of:
    0.07357028 = product of:
      0.11035542 = sum of:
        0.08029274 = weight(_text_:y in 882) [ClassicSimilarity], result of:
          0.08029274 = score(doc=882,freq=4.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.37596878 = fieldWeight in 882, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0390625 = fieldNorm(doc=882)
        0.030062687 = weight(_text_:22 in 882) [ClassicSimilarity], result of:
          0.030062687 = score(doc=882,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.19345059 = fieldWeight in 882, 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=882)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 1.2023 18:37:33
  14. Tonta, Y.: Scholarly communication and the use of networked information sources (1996) 0.03 
    0.034735292 = product of:
  0.069470584 = sum of:
    0.069470584 = product of:
      0.10420588 = sum of:
        0.06813065 = weight(_text_:y in 6389) [ClassicSimilarity], result of:
          0.06813065 = score(doc=6389,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3190201 = fieldWeight in 6389, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=6389)
        0.036075223 = weight(_text_:22 in 6389) [ClassicSimilarity], result of:
          0.036075223 = score(doc=6389,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.23214069 = fieldWeight in 6389, 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=6389)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Source
    IFLA journal. 22(1996) no.3, S.240-245
  15. Asonuma, A.; Fang, Y.; Rousseau, R.: Reflections on the age distribution of Japanese scientists (2006) 0.03 
    0.034735292 = product of:
  0.069470584 = sum of:
    0.069470584 = product of:
      0.10420588 = sum of:
        0.06813065 = weight(_text_:y in 5270) [ClassicSimilarity], result of:
          0.06813065 = score(doc=5270,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3190201 = fieldWeight in 5270, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=5270)
        0.036075223 = weight(_text_:22 in 5270) [ClassicSimilarity], result of:
          0.036075223 = score(doc=5270,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 7.2006 15:26:24
  16. Zhang, Y.; Jansen, B.J.; Spink, A.: Identification of factors predicting clickthrough in Web searching using neural network analysis (2009) 0.03 
    0.034735292 = product of:
  0.069470584 = sum of:
    0.069470584 = product of:
      0.10420588 = sum of:
        0.06813065 = weight(_text_:y in 2742) [ClassicSimilarity], result of:
          0.06813065 = score(doc=2742,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3190201 = fieldWeight in 2742, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=2742)
        0.036075223 = weight(_text_:22 in 2742) [ClassicSimilarity], result of:
          0.036075223 = score(doc=2742,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 3.2009 17:49:11
  17. Leydesdorff, L.; Sun, Y.: National and international dimensions of the Triple Helix in Japan : university-industry-government versus international coauthorship relations (2009) 0.03 
    0.034735292 = product of:
  0.069470584 = sum of:
    0.069470584 = product of:
      0.10420588 = sum of:
        0.06813065 = weight(_text_:y in 2761) [ClassicSimilarity], result of:
          0.06813065 = score(doc=2761,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3190201 = fieldWeight in 2761, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=2761)
        0.036075223 = weight(_text_:22 in 2761) [ClassicSimilarity], result of:
          0.036075223 = score(doc=2761,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = 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)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    22. 3.2009 19:07:20
  18. Milard, B.; Pitarch, Y.: Egocentric cocitation networks and scientific papers destinies (2023) 0.03 
    0.034735292 = product of:
  0.069470584 = sum of:
    0.069470584 = product of:
      0.10420588 = sum of:
        0.06813065 = weight(_text_:y in 918) [ClassicSimilarity], result of:
          0.06813065 = score(doc=918,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.3190201 = fieldWeight in 918, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.046875 = fieldNorm(doc=918)
        0.036075223 = weight(_text_:22 in 918) [ClassicSimilarity], result of:
          0.036075223 = score(doc=918,freq=2.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.23214069 = fieldWeight in 918, 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=918)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    21. 3.2023 19:22:14
  19. Zhang, Y.: ¬The impact of Internet-based electronic resources on formal scholarly communication in the area of library and information science : a citation analysis (1998) 0.03 
    0.033096865 = product of:
  0.06619373 = sum of:
    0.06619373 = product of:
      0.099290594 = sum of:
        0.05677554 = weight(_text_:y in 2808) [ClassicSimilarity], result of:
          0.05677554 = score(doc=2808,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.26585007 = fieldWeight in 2808, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2808)
        0.042515058 = weight(_text_:22 in 2808) [ClassicSimilarity], result of:
          0.042515058 = score(doc=2808,freq=4.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.27358043 = fieldWeight in 2808, 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=2808)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Date
    30. 1.1999 17:22:22
  20. Crespo, J.A.; Herranz, N.; Li, Y.; Ruiz-Castillo, J.: ¬The effect on citation inequality of differences in citation practices at the web of science subject category level (2014) 0.03 
    0.033096865 = product of:
  0.06619373 = sum of:
    0.06619373 = product of:
      0.099290594 = sum of:
        0.05677554 = weight(_text_:y in 1291) [ClassicSimilarity], result of:
          0.05677554 = score(doc=1291,freq=2.0), product of:
            0.21356225 = queryWeight, product of:
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.04437749 = queryNorm
            0.26585007 = fieldWeight in 1291, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.8124003 = idf(docFreq=976, maxDocs=44218)
              0.0390625 = fieldNorm(doc=1291)
        0.042515058 = weight(_text_:22 in 1291) [ClassicSimilarity], result of:
          0.042515058 = score(doc=1291,freq=4.0), product of:
            0.1554024 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04437749 = queryNorm
            0.27358043 = fieldWeight in 1291, 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=1291)
      0.6666667 = coord(2/3)
  0.5 = coord(1/2)
    Abstract
    This article studies the impact of differences in citation practices at the subfield, or Web of Science subject category level, using the model introduced in Crespo, Li, and Ruiz-Castillo (2013a), according to which the number of citations received by an article depends on its underlying scientific influence and the field to which it belongs. We use the same Thomson Reuters data set of about 4.4 million articles used in Crespo et al. (2013a) to analyze 22 broad fields. The main results are the following: First, when the classification system goes from 22 fields to 219 subfields the effect on citation inequality of differences in citation practices increases from ?14% at the field level to 18% at the subfield level. Second, we estimate a set of exchange rates (ERs) over a wide [660, 978] citation quantile interval to express the citation counts of articles into the equivalent counts in the all-sciences case. In the fractional case, for example, we find that in 187 of 219 subfields the ERs are reliable in the sense that the coefficient of variation is smaller than or equal to 0.10. Third, in the fractional case the normalization of the raw data using the ERs (or subfield mean citations) as normalization factors reduces the importance of the differences in citation practices from 18% to 3.8% (3.4%) of overall citation inequality. Fourth, the results in the fractional case are essentially replicated when we adopt a multiplicative approach.

Authors

Years

Languages

  • e 237
  • d 30
  • chi 1
  • ro 1
  • More… Less…

Types

  • a 262
  • s 4
  • el 3
  • m 3
  • b 1
  • More… Less…

Themes

Subjects

Classifications