Search (10 results, page 1 of 1)

  • × theme_ss:"Citation indexing"
  • × theme_ss:"Informetrie"
  • × year_i:[2000 TO 2010}
  1. Garfield, E.; Pudovkin, A.I.; Istomin, V.S.: Why do we need algorithmic historiography? (2003) 0.05
    0.04743251 = product of:
      0.09486502 = sum of:
        0.09486502 = product of:
          0.18973003 = sum of:
            0.18973003 = weight(_text_:400 in 1606) [ClassicSimilarity], result of:
              0.18973003 = score(doc=1606,freq=2.0), product of:
                0.32745647 = queryWeight, product of:
                  6.5552235 = idf(docFreq=170, maxDocs=44218)
                  0.049953517 = queryNorm
                0.57940537 = fieldWeight in 1606, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.5552235 = idf(docFreq=170, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1606)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Journal of the American Society for Information Science and technology. 54(2003) no.5, S.400-412
  2. Nicolaisen, J.: Citation analysis (2007) 0.03
    0.027072048 = product of:
      0.054144096 = sum of:
        0.054144096 = product of:
          0.10828819 = sum of:
            0.10828819 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.10828819 = score(doc=6091,freq=2.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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
  3. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.02
    0.023928536 = product of:
      0.047857072 = sum of:
        0.047857072 = product of:
          0.095714144 = sum of:
            0.095714144 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.095714144 = score(doc=3925,freq=4.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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
  4. De Bellis, N.: Bibliometrics and citation analysis : from the Science citation index to cybermetrics (2008) 0.02
    0.023716254 = product of:
      0.04743251 = sum of:
        0.04743251 = product of:
          0.09486502 = sum of:
            0.09486502 = weight(_text_:400 in 3585) [ClassicSimilarity], result of:
              0.09486502 = score(doc=3585,freq=2.0), product of:
                0.32745647 = queryWeight, product of:
                  6.5552235 = idf(docFreq=170, maxDocs=44218)
                  0.049953517 = queryNorm
                0.28970268 = fieldWeight in 3585, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  6.5552235 = idf(docFreq=170, maxDocs=44218)
                  0.03125 = fieldNorm(doc=3585)
          0.5 = coord(1/2)
      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."
  5. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01
    0.014357123 = product of:
      0.028714245 = sum of:
        0.028714245 = product of:
          0.05742849 = sum of:
            0.05742849 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.05742849 = score(doc=2763,freq=4.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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
  6. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.01
    0.010152018 = product of:
      0.020304035 = sum of:
        0.020304035 = product of:
          0.04060807 = sum of:
            0.04060807 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
              0.04060807 = score(doc=201,freq=2.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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
  7. H-Index auch im Web of Science (2008) 0.01
    0.010152018 = product of:
      0.020304035 = sum of:
        0.020304035 = product of:
          0.04060807 = sum of:
            0.04060807 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
              0.04060807 = score(doc=590,freq=2.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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
  8. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.01
    0.010152018 = product of:
      0.020304035 = sum of:
        0.020304035 = product of:
          0.04060807 = sum of:
            0.04060807 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.04060807 = score(doc=994,freq=2.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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
  9. Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008) 0.01
    0.008460015 = product of:
      0.01692003 = sum of:
        0.01692003 = product of:
          0.03384006 = sum of:
            0.03384006 = weight(_text_:22 in 1934) [ClassicSimilarity], result of:
              0.03384006 = score(doc=1934,freq=2.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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
  10. Ahlgren, P.; Jarneving, B.; Rousseau, R.: Requirements for a cocitation similarity measure, with special reference to Pearson's correlation coefficient (2003) 0.01
    0.006768012 = product of:
      0.013536024 = sum of:
        0.013536024 = product of:
          0.027072048 = sum of:
            0.027072048 = weight(_text_:22 in 5171) [ClassicSimilarity], result of:
              0.027072048 = score(doc=5171,freq=2.0), product of:
                0.17492871 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.049953517 = 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