Search (47 results, page 1 of 3)

  • × theme_ss:"Citation indexing"
  • × language_ss:"e"
  1. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.13
    0.12919164 = product of:
      0.25838327 = sum of:
        0.15038833 = weight(_text_:van in 3925) [ClassicSimilarity], result of:
          0.15038833 = score(doc=3925,freq=2.0), product of:
            0.24408463 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.043769516 = queryNorm
            0.6161319 = fieldWeight in 3925, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.078125 = fieldNorm(doc=3925)
        0.10799493 = sum of:
          0.024129728 = weight(_text_:der in 3925) [ClassicSimilarity], result of:
            0.024129728 = score(doc=3925,freq=2.0), product of:
              0.09777089 = queryWeight, product of:
                2.2337668 = idf(docFreq=12875, maxDocs=44218)
                0.043769516 = queryNorm
              0.2467987 = fieldWeight in 3925, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.2337668 = idf(docFreq=12875, maxDocs=44218)
                0.078125 = fieldNorm(doc=3925)
          0.0838652 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
            0.0838652 = score(doc=3925,freq=4.0), product of:
              0.15327339 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.043769516 = 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(2/4)
    
    Date
    22. 7.2006 15:22:28
  2. Van der Veer Martens, B.; Goodrum, G.: ¬The diffusion of theories : a functional approach (2006) 0.08
    0.081836894 = product of:
      0.16367379 = sum of:
        0.10527182 = weight(_text_:van in 5269) [ClassicSimilarity], result of:
          0.10527182 = score(doc=5269,freq=2.0), product of:
            0.24408463 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.043769516 = queryNorm
            0.43129233 = fieldWeight in 5269, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5269)
        0.058401965 = sum of:
          0.01689081 = weight(_text_:der in 5269) [ClassicSimilarity], result of:
            0.01689081 = score(doc=5269,freq=2.0), product of:
              0.09777089 = queryWeight, product of:
                2.2337668 = idf(docFreq=12875, maxDocs=44218)
                0.043769516 = queryNorm
              0.17275909 = fieldWeight in 5269, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                2.2337668 = idf(docFreq=12875, maxDocs=44218)
                0.0546875 = fieldNorm(doc=5269)
          0.041511156 = weight(_text_:22 in 5269) [ClassicSimilarity], result of:
            0.041511156 = score(doc=5269,freq=2.0), product of:
              0.15327339 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.043769516 = queryNorm
              0.2708308 = fieldWeight in 5269, 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=5269)
      0.5 = coord(2/4)
    
    Date
    22. 7.2006 15:20:01
  3. Braam, R.R.; Moed, H.F.; Raan, F.J. van: Mapping of science by combined co-citation and word analysis : T.1: Structural aspects - T.2: Dynamical Aspects (1991) 0.05
    0.0451165 = product of:
      0.180466 = sum of:
        0.180466 = weight(_text_:van in 1119) [ClassicSimilarity], result of:
          0.180466 = score(doc=1119,freq=2.0), product of:
            0.24408463 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.043769516 = queryNorm
            0.7393583 = fieldWeight in 1119, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.09375 = fieldNorm(doc=1119)
      0.25 = coord(1/4)
    
  4. Page, L.; Brin, S.; Motwani, R.; Winograd, T.: ¬The PageRank citation ranking : Bringing order to the Web (1999) 0.03
    0.026738876 = product of:
      0.106955506 = sum of:
        0.106955506 = weight(_text_:l in 496) [ClassicSimilarity], result of:
          0.106955506 = score(doc=496,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.6147977 = fieldWeight in 496, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.109375 = fieldNorm(doc=496)
      0.25 = coord(1/4)
    
  5. Raan, A.F.J. van: ¬The influence of international collaboration on the impact of research results (1998) 0.02
    0.02255825 = product of:
      0.090233 = sum of:
        0.090233 = weight(_text_:van in 5120) [ClassicSimilarity], result of:
          0.090233 = score(doc=5120,freq=2.0), product of:
            0.24408463 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.043769516 = queryNorm
            0.36967915 = fieldWeight in 5120, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.046875 = fieldNorm(doc=5120)
      0.25 = coord(1/4)
    
  6. Raan, A.F.J. van: Self-citation as an impact-reinforcing mechanism in the science system (2008) 0.02
    0.018798541 = product of:
      0.075194165 = sum of:
        0.075194165 = weight(_text_:van in 2006) [ClassicSimilarity], result of:
          0.075194165 = score(doc=2006,freq=2.0), product of:
            0.24408463 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.043769516 = queryNorm
            0.30806595 = fieldWeight in 2006, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.0390625 = fieldNorm(doc=2006)
      0.25 = coord(1/4)
    
  7. Moed, H.F.; Leeuwen, T.N. van; Reedijk, J.: ¬A new classification system to describe the ageing of scientific journals and their impact factors (1998) 0.02
    0.015038833 = product of:
      0.060155332 = sum of:
        0.060155332 = weight(_text_:van in 4719) [ClassicSimilarity], result of:
          0.060155332 = score(doc=4719,freq=2.0), product of:
            0.24408463 = queryWeight, product of:
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.043769516 = queryNorm
            0.24645276 = fieldWeight in 4719, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              5.5765896 = idf(docFreq=454, maxDocs=44218)
              0.03125 = fieldNorm(doc=4719)
      0.25 = coord(1/4)
    
  8. Thelwall, M.; Vaughan, L.; Björneborn, L.: Webometrics (2004) 0.01
    0.013505171 = product of:
      0.054020684 = sum of:
        0.054020684 = weight(_text_:l in 4279) [ClassicSimilarity], result of:
          0.054020684 = score(doc=4279,freq=4.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.31051973 = fieldWeight in 4279, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.0390625 = fieldNorm(doc=4279)
      0.25 = coord(1/4)
    
  9. Leydesdorff, L.: Theories of citation? (1999) 0.01
    0.013369438 = product of:
      0.053477753 = sum of:
        0.053477753 = weight(_text_:l in 5130) [ClassicSimilarity], result of:
          0.053477753 = score(doc=5130,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.30739886 = fieldWeight in 5130, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.0546875 = fieldNorm(doc=5130)
      0.25 = coord(1/4)
    
  10. Leydesdorff, L.: Dynamic and evolutionary updates of classificatory schemes in scientific journal structures (2002) 0.01
    0.013369438 = product of:
      0.053477753 = sum of:
        0.053477753 = weight(_text_:l in 1249) [ClassicSimilarity], result of:
          0.053477753 = score(doc=1249,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.30739886 = fieldWeight in 1249, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.0546875 = fieldNorm(doc=1249)
      0.25 = coord(1/4)
    
  11. Brody, T.; Harnad, S.; Carr, L.: Earlier Web usage statistics as predictors of later citation impact (2006) 0.01
    0.013369438 = product of:
      0.053477753 = sum of:
        0.053477753 = weight(_text_:l in 165) [ClassicSimilarity], result of:
          0.053477753 = score(doc=165,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.30739886 = fieldWeight in 165, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.0546875 = fieldNorm(doc=165)
      0.25 = coord(1/4)
    
  12. Nicolaisen, J.: Citation analysis (2007) 0.01
    0.011860331 = product of:
      0.047441322 = sum of:
        0.047441322 = product of:
          0.094882645 = sum of:
            0.094882645 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.094882645 = score(doc=6091,freq=2.0), product of:
                0.15327339 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043769516 = 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
  13. Døsen, K.: One more reference on self-reference (1992) 0.01
    0.011860331 = product of:
      0.047441322 = sum of:
        0.047441322 = product of:
          0.094882645 = sum of:
            0.094882645 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
              0.094882645 = score(doc=4604,freq=2.0), product of:
                0.15327339 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.043769516 = 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)
          0.5 = coord(1/2)
      0.25 = coord(1/4)
    
    Date
    7. 2.2005 14:10:22
  14. Leydesdorff, L.: Clusters and maps of science journals based on bi-connected graphs in Journal Citation Reports (2004) 0.01
    0.011459517 = product of:
      0.04583807 = sum of:
        0.04583807 = weight(_text_:l in 4427) [ClassicSimilarity], result of:
          0.04583807 = score(doc=4427,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.26348472 = fieldWeight in 4427, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.046875 = fieldNorm(doc=4427)
      0.25 = coord(1/4)
    
  15. Leydesdorff, L.; Bihui, J.: Mapping the Chinese Science Citation Database in terms of aggregated journal-journal citation relations (2005) 0.01
    0.011459517 = product of:
      0.04583807 = sum of:
        0.04583807 = weight(_text_:l in 4813) [ClassicSimilarity], result of:
          0.04583807 = score(doc=4813,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.26348472 = fieldWeight in 4813, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.046875 = fieldNorm(doc=4813)
      0.25 = coord(1/4)
    
  16. Leydesdorff, L.: Can scientific journals be classified in terms of aggregated journal-journal citation relations using the Journal Citation Reports? (2006) 0.01
    0.011459517 = product of:
      0.04583807 = sum of:
        0.04583807 = weight(_text_:l in 5046) [ClassicSimilarity], result of:
          0.04583807 = score(doc=5046,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.26348472 = fieldWeight in 5046, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.046875 = fieldNorm(doc=5046)
      0.25 = coord(1/4)
    
  17. González, L.; Campanario, J.M.: Structure of the impact factor of journals included in the Social Sciences Citation Index : citations from documents labeled "Editorial Material" (2007) 0.01
    0.011459517 = product of:
      0.04583807 = sum of:
        0.04583807 = weight(_text_:l in 75) [ClassicSimilarity], result of:
          0.04583807 = score(doc=75,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.26348472 = fieldWeight in 75, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.046875 = fieldNorm(doc=75)
      0.25 = coord(1/4)
    
  18. Leydesdorff, L.: On the normalization and visualization of author co-citation data : Salton's Cosine versus the Jaccard index (2008) 0.01
    0.011459517 = product of:
      0.04583807 = sum of:
        0.04583807 = weight(_text_:l in 1341) [ClassicSimilarity], result of:
          0.04583807 = score(doc=1341,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.26348472 = fieldWeight in 1341, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.046875 = fieldNorm(doc=1341)
      0.25 = coord(1/4)
    
  19. Leydesdorff, L.: Caveats for the use of citation indicators in research and journal evaluations (2008) 0.01
    0.011459517 = product of:
      0.04583807 = sum of:
        0.04583807 = weight(_text_:l in 1361) [ClassicSimilarity], result of:
          0.04583807 = score(doc=1361,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.26348472 = fieldWeight in 1361, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.046875 = fieldNorm(doc=1361)
      0.25 = coord(1/4)
    
  20. Leydesdorff, L.; Salah, A.A.A.: Maps on the basis of the Arts & Humanities Citation Index : the journals Leonardo and Art Journal versus "digital humanities" as a topic (2010) 0.01
    0.011459517 = product of:
      0.04583807 = sum of:
        0.04583807 = weight(_text_:l in 3436) [ClassicSimilarity], result of:
          0.04583807 = score(doc=3436,freq=2.0), product of:
            0.17396861 = queryWeight, product of:
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.043769516 = queryNorm
            0.26348472 = fieldWeight in 3436, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.9746525 = idf(docFreq=2257, maxDocs=44218)
              0.046875 = fieldNorm(doc=3436)
      0.25 = coord(1/4)
    

Types

  • a 43
  • el 4
  • m 2
  • s 1
  • More… Less…