Search (277 results, page 1 of 14)

  • × theme_ss:"Citation indexing"
  1. Fröhlich, G.: ¬Das Messen des leicht Meßbaren : Output-Indikatoren, Impact-Maße: Artefakte der Szeintometrie? (1999) 0.06 
    0.061526757 = product of:
  0.10254459 = sum of:
    0.04603517 = weight(_text_:j in 4379) [ClassicSimilarity], result of:
      0.04603517 = score(doc=4379,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.048887167 = weight(_text_:u in 4379) [ClassicSimilarity], result of:
      0.048887167 = score(doc=4379,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.3617784 = fieldWeight in 4379, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=4379)
    0.007622256 = weight(_text_:s in 4379) [ClassicSimilarity], result of:
      0.007622256 = score(doc=4379,freq=4.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.16988087 = fieldWeight in 4379, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.078125 = fieldNorm(doc=4379)
  0.6 = coord(3/5)
    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.
    Source
    Online Mitteilungen. 1999, Nr.65, S.7-21 [=Mitteilungen VÖB 52(1999) H.3/4]
  2. Nicolaisen, J.: Citation analysis (2007) 0.05 
    0.04735454 = product of:
  0.11838635 = sum of:
    0.073656276 = weight(_text_:j in 6091) [ClassicSimilarity], result of:
      0.073656276 = score(doc=6091,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.044730075 = product of:
      0.08946015 = sum of:
        0.08946015 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
          0.08946015 = score(doc=6091,freq=2.0), product of:
            0.14451389 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04126811 = 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)
  0.4 = coord(2/5)
    Date
    13. 7.2008 19:53:22
  3. Gorraiz, J.: ¬Die unerträgliche Bedeutung der Zitate (1992) 0.03 
    0.032911953 = product of:
  0.082279876 = sum of:
    0.073656276 = weight(_text_:j in 2824) [ClassicSimilarity], result of:
      0.073656276 = score(doc=2824,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.008623598 = weight(_text_:s in 2824) [ClassicSimilarity], result of:
      0.008623598 = score(doc=2824,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.19219826 = fieldWeight in 2824, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.125 = fieldNorm(doc=2824)
  0.4 = coord(2/5)
    Source
    Biblos. 41(1992) H.4, S.193-204
  4. ¬The Web of knowledge : Festschrift in honor of Eugene Garfield (2000) 0.03 
    0.031966556 = product of:
  0.07991639 = sum of:
    0.06913689 = weight(_text_:u in 461) [ClassicSimilarity], result of:
      0.06913689 = score(doc=461,freq=4.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.5116319 = fieldWeight in 461, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.078125 = fieldNorm(doc=461)
    0.010779498 = weight(_text_:s in 461) [ClassicSimilarity], result of:
      0.010779498 = score(doc=461,freq=8.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.24024783 = fieldWeight in 461, product of:
          2.828427 = tf(freq=8.0), with freq of:
            8.0 = termFreq=8.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.078125 = fieldNorm(doc=461)
  0.4 = coord(2/5)
    Editor
    Cronin, B. u. H.B. Atkins
    Footnote
    Rez. in: Knowledge organization 28(2001) no.1, S.45-46 (M.J. López Huertas u. E. Jiménez-Contreras); Password 2002, H.3, S.14-19 (W.G. Stock)
    Pages
    564 S
    Type
    s
  5. Gabel, J.: Improving information retrieval of subjects through citation-analysis : a study (2006) 0.03 
    0.030093627 = product of:
  0.050156042 = sum of:
    0.023017585 = weight(_text_:j in 225) [ClassicSimilarity], result of:
      0.023017585 = score(doc=225,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = queryNorm
        0.17553353 = fieldWeight in 225, 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=225)
    0.024443584 = weight(_text_:u in 225) [ClassicSimilarity], result of:
      0.024443584 = score(doc=225,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.1808892 = fieldWeight in 225, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0390625 = fieldNorm(doc=225)
    0.0026948745 = weight(_text_:s in 225) [ClassicSimilarity], result of:
      0.0026948745 = score(doc=225,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.060061958 = fieldWeight in 225, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0390625 = fieldNorm(doc=225)
  0.6 = coord(3/5)
    Pages
    S.19-25
    Source
    Knowledge organization for a global learning society: Proceedings of the 9th International ISKO Conference, 4-7 July 2006, Vienna, Austria. Hrsg.: G. Budin, C. Swertz u. K. Mitgutsch
  6. Umstätter, W.: Szientometrische Verfahren (2004) 0.03 
    0.028651318 = product of:
  0.047752194 = sum of:
    0.026041426 = weight(_text_:j in 2920) [ClassicSimilarity], result of:
      0.026041426 = score(doc=2920,freq=4.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = queryNorm
        0.19859353 = fieldWeight in 2920, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.03125 = fieldNorm(doc=2920)
    0.019554866 = weight(_text_:u in 2920) [ClassicSimilarity], result of:
      0.019554866 = score(doc=2920,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.14471136 = fieldWeight in 2920, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03125 = fieldNorm(doc=2920)
    0.0021558995 = weight(_text_:s in 2920) [ClassicSimilarity], result of:
      0.0021558995 = score(doc=2920,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.048049565 = fieldWeight in 2920, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.03125 = fieldNorm(doc=2920)
  0.6 = coord(3/5)
    Abstract
    Die Szientometrie beschäftigt sich mit der Messbarkeit wissenschaftlicher Leistungen anhand bibliothekarisch nachweisbarer Publikationsergebnisse. Bei genauer Betrachtung ist es ihr Ziel, die Wissenszunahme der Wissenschaft zu messen. Die wissenschaftliche Produktion in Form von Publikationen wächst seit über dreihundert Jahren konstant mit ca. 3,5% pro Jahr. Das entspricht einerVerdopplungsrate von 20 Jahren, die zuerst dem Bibliothekar Fremont Rider 1948 bei Büchern auffiel und die 1963 von Derek J. de Solla Price auch für das Wachstum von Zeitschriften und Bibliografien bestätigt wurde. Die Konstanz dieser Evolution, unabhängig aller sich ereignenden Katastrophen, ist nur zum Teil verstanden, macht aber den unaufhaltsamen Fortschritt der Wissenschaft deutlich. Alle 20 Jahre wird so viel publiziert wie in allen Jahrhunderten davor. Eine etwa gleiche Zunahme verzeichnen die Wissenschaftler, die damit etwa gleich produktiv bleiben. Von ihnen allen sind damit ca. 87% unsere heutigen Zeitgenossen. Aus diesem Wachstum heraus können wir abschätzen, dass in 100.000 laufenden Zeitschriften heute etwa 10 Mio. Publikationen jährlich erscheinen, die von 10 Mio. Wissenschaftlern verfasst werden. Dabei definieren sich nur die als Wissenschaftler, die durchschnittlich eine Publikation jährlich verfassen. Die gesamte Produktion an Buchtiteln, die bisher erschien, dürfte bei etwa 100 Mio. liegen. Davon sind etwa 20 Mio. als wissenschaftlich einzustufen. Wenn folglich 87% aller Wissenschaftler noch heute leben, so betrug die Gesamtzahl der Wissenschaftler in der Welt bisher 11,5 Mio., die in ihrem Leben durchschnittlich 1,5 Bücher pro Kopf verfassten, und etwa das 10-20fache an Zeitschriftenbeiträgen leisteten. Ein Teil dieser Bücher sind allerdings Neuauflagen und Übersetzungen. Nach Lotka, A. J. ist die Produktivität der Wissenschaftler eine schiefe Verteilung von der Form A/n**2, wobei A die Zahl der Autoren mit nur einer Publikation ist und n die Publikationen pro Autor. Während Price in seinen "Networks of Scientific Papers" Vergleichswerte von n**2,5 bis n**3 angab, zeigten Untersuchungen am Science Citation Index (SCI), die auf die gesamte naturwissenschaftliche Literatur hochgerechnet wurden, eher einen Wert von n**1,7. Auf die Tatsache, dass eine Verdopplungsrate der Wissenschaftler von 20 Jahren und eine solche der Menschheit von etwa 50 Jahren dazu führt, dass eines Tages alle Menschen Wissenschaftler werden, hat Price bereits 1963 hingewiesen. Dieser Zustand müsste bei 10 Mio. Wissenschaftlern und 6 Mrd. Menschen in etwa 300 Jahren eintreten, ein nur scheinbar absurder Gedanke, wenn man bedenkt, dass man sich vor 300 Jahren auch kaum vorstellen konnte, dass alle Menschen Lesen, Schreiben und Rechnen lernen können, und dass wir uns ungebildete Menschen immer weniger leisten können.
    Pages
    S.237-243
    Source
    Grundlagen der praktischen Information und Dokumentation. 5., völlig neu gefaßte Ausgabe. 2 Bde. Hrsg. von R. Kuhlen, Th. Seeger u. D. Strauch. Begründet von Klaus Laisiepen, Ernst Lutterbeck, Karl-Heinrich Meyer-Uhlenried. Bd.1: Handbuch zur Einführung in die Informationswissenschaft und -praxis
  7. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.03 
    0.02857724 = product of:
  0.04762873 = sum of:
    0.027621105 = weight(_text_:j in 994) [ClassicSimilarity], result of:
      0.027621105 = score(doc=994,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.0032338493 = weight(_text_:s in 994) [ClassicSimilarity], result of:
      0.0032338493 = score(doc=994,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.072074346 = fieldWeight in 994, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.046875 = fieldNorm(doc=994)
    0.016773777 = product of:
      0.033547554 = sum of:
        0.033547554 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
          0.033547554 = score(doc=994,freq=2.0), product of:
            0.14451389 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04126811 = 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)
  0.6 = coord(3/5)
    Date
    26.12.2007 19:22:05
    Source
    Information processing and management. 42(2006) no.6, S.1451-1464
  8. Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008) 0.03 
    0.02857724 = product of:
  0.04762873 = sum of:
    0.027621105 = weight(_text_:j in 2064) [ClassicSimilarity], result of:
      0.027621105 = score(doc=2064,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.0032338493 = weight(_text_:s in 2064) [ClassicSimilarity], result of:
      0.0032338493 = score(doc=2064,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.072074346 = fieldWeight in 2064, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.046875 = fieldNorm(doc=2064)
    0.016773777 = product of:
      0.033547554 = sum of:
        0.033547554 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
          0.033547554 = score(doc=2064,freq=2.0), product of:
            0.14451389 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04126811 = 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)
      0.5 = coord(1/2)
  0.6 = coord(3/5)
    Date
    31. 7.2008 14:22:05
    Source
    Information processing and management. 44(2008) no.2, S.800-810
  9. Nicolaisen, J.: ¬The J-shaped distribution of citedness (2002) 0.03 
    0.027240003 = product of:
  0.068100005 = sum of:
    0.063788205 = weight(_text_:j in 3765) [ClassicSimilarity], result of:
      0.063788205 = score(doc=3765,freq=6.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.004311799 = weight(_text_:s in 3765) [ClassicSimilarity], result of:
      0.004311799 = score(doc=3765,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.09609913 = fieldWeight in 3765, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0625 = fieldNorm(doc=3765)
  0.4 = coord(2/5)
    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.
    Source
    Journal of documentation. 58(2002) no.4, S.383-395
  10. Nacke, O.: Zitatenanalyse im engeren Sinne (1980) 0.03 
    0.02605292 = product of:
  0.0651323 = sum of:
    0.058664598 = weight(_text_:u in 399) [ClassicSimilarity], result of:
      0.058664598 = score(doc=399,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.43413407 = fieldWeight in 399, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.09375 = fieldNorm(doc=399)
    0.0064676986 = weight(_text_:s in 399) [ClassicSimilarity], result of:
      0.0064676986 = score(doc=399,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.14414869 = fieldWeight in 399, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.09375 = fieldNorm(doc=399)
  0.4 = coord(2/5)
    Pages
    S.51-72
    Source
    Deutscher Dokumentartag 1979, Willingen/Hochsauerland, 1.-5.10.1979. Das IuD-Programm heute - Online-Benutzergruppe - Bibliometrie, Scientometrie - Terminologiearbeit - Datenschutz - Tariffragen, Berufsbilder - Informationsmarkt - Gesprächskreise. Bearb.: M. von der Laake u. H. Strohl-Goebel
  11. Nacke, O.: Fehlerquellen bei der Zitatenanalyse (1980) 0.03 
    0.02605292 = product of:
  0.0651323 = sum of:
    0.058664598 = weight(_text_:u in 400) [ClassicSimilarity], result of:
      0.058664598 = score(doc=400,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.43413407 = fieldWeight in 400, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.09375 = fieldNorm(doc=400)
    0.0064676986 = weight(_text_:s in 400) [ClassicSimilarity], result of:
      0.0064676986 = score(doc=400,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.14414869 = fieldWeight in 400, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.09375 = fieldNorm(doc=400)
  0.4 = coord(2/5)
    Pages
    S.73-82
    Source
    Deutscher Dokumentartag 1979, Willingen/Hochsauerland, 1.-5.10.1979. Das IuD-Programm heute - Online-Benutzergruppe - Bibliometrie, Scientometrie - Terminologiearbeit - Datenschutz - Tariffragen, Berufsbilder - Informationsmarkt - Gesprächskreise. Bearb.: M. von der Laake u. H. Strohl-Goebel
  12. De Bellis, N.: Bibliometrics and citation analysis : from the Science citation index to cybermetrics (2008) 0.03 
    0.025021838 = product of:
  0.04170306 = sum of:
    0.018414069 = weight(_text_:j in 3585) [ClassicSimilarity], result of:
      0.018414069 = score(doc=3585,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.019554866 = weight(_text_:u in 3585) [ClassicSimilarity], result of:
      0.019554866 = score(doc=3585,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.14471136 = fieldWeight in 3585, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.03125 = fieldNorm(doc=3585)
    0.0037341279 = weight(_text_:s in 3585) [ClassicSimilarity], result of:
      0.0037341279 = score(doc=3585,freq=6.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.0832243 = fieldWeight in 3585, product of:
          2.4494898 = tf(freq=6.0), with freq of:
            6.0 = termFreq=6.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.03125 = fieldNorm(doc=3585)
  0.6 = coord(3/5)
    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."
    Pages
    xxxi, 417 S
  13. Lindholm-Romantschuk, Y.: Scholarly book reviewing in the social sciences and humanities : the flow of ides within and among disciplines (1998) 0.02 
    0.021462971 = product of:
  0.053657427 = sum of:
    0.04603517 = weight(_text_:j in 4063) [ClassicSimilarity], result of:
      0.04603517 = score(doc=4063,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.007622256 = weight(_text_:s in 4063) [ClassicSimilarity], result of:
      0.007622256 = score(doc=4063,freq=4.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.16988087 = fieldWeight in 4063, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.078125 = fieldNorm(doc=4063)
  0.4 = coord(2/5)
    Footnote
    Rez. in: JASIS 50(1999) no.13, S.1259-1261 (J. Andersen)
    Pages
    152 S
  14. Døsen, K.: One more reference on self-reference (1992) 0.02 
    0.021341471 = product of:
  0.053353675 = sum of:
    0.008623598 = weight(_text_:s in 4604) [ClassicSimilarity], result of:
      0.008623598 = score(doc=4604,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.19219826 = fieldWeight in 4604, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.125 = fieldNorm(doc=4604)
    0.044730075 = product of:
      0.08946015 = sum of:
        0.08946015 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
          0.08946015 = score(doc=4604,freq=2.0), product of:
            0.14451389 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.04126811 = 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)
  0.4 = coord(2/5)
    Date
    7. 2.2005 14:10:22
    Source
    Mathematical intelligencer. 14(1992), no.4, S.4-5
  15. Korwitz, U.: Welchen 'Rang' hat ein Wissenschaftler? (1995) 0.02 
    0.017368613 = product of:
  0.043421533 = sum of:
    0.039109733 = weight(_text_:u in 2318) [ClassicSimilarity], result of:
      0.039109733 = score(doc=2318,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.28942272 = fieldWeight in 2318, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0625 = fieldNorm(doc=2318)
    0.004311799 = weight(_text_:s in 2318) [ClassicSimilarity], result of:
      0.004311799 = score(doc=2318,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.09609913 = fieldWeight in 2318, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0625 = fieldNorm(doc=2318)
  0.4 = coord(2/5)
    Source
    Nachrichten für Dokumentation. 46(1995) H.5, S.267-272
  16. Pudovkin, A.I.; Garfield, E.: Algorithmic procedure for finding semantically related journals (2002) 0.02 
    0.017025001 = product of:
  0.042562503 = sum of:
    0.03986763 = weight(_text_:j in 5220) [ClassicSimilarity], result of:
      0.03986763 = score(doc=5220,freq=6.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.0026948745 = weight(_text_:s in 5220) [ClassicSimilarity], result of:
      0.0026948745 = score(doc=5220,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.060061958 = fieldWeight in 5220, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0390625 = fieldNorm(doc=5220)
  0.4 = coord(2/5)
    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.
    Source
    Journal of the American Society for Information Science and technology. 53(2002) no.13, S.1113-1119
  17. Howard, D.L.: What the eye sees while predicitng a document's pertinence from its citation (1991) 0.02 
    0.016455976 = product of:
  0.041139938 = sum of:
    0.036828138 = weight(_text_:j in 3675) [ClassicSimilarity], result of:
      0.036828138 = score(doc=3675,freq=2.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = 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)
    0.004311799 = weight(_text_:s in 3675) [ClassicSimilarity], result of:
      0.004311799 = score(doc=3675,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.09609913 = fieldWeight in 3675, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0625 = fieldNorm(doc=3675)
  0.4 = coord(2/5)
    Pages
    S.87-101
    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
  18. Garfield, E.: Agony and ecstasy of the Internet : experiences of an information scientist qua publisher (1996) 0.02 
    0.015197537 = product of:
  0.03799384 = sum of:
    0.034221016 = weight(_text_:u in 3044) [ClassicSimilarity], result of:
      0.034221016 = score(doc=3044,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.25324488 = fieldWeight in 3044, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3044)
    0.003772824 = weight(_text_:s in 3044) [ClassicSimilarity], result of:
      0.003772824 = score(doc=3044,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.08408674 = fieldWeight in 3044, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0546875 = fieldNorm(doc=3044)
  0.4 = coord(2/5)
    Pages
    S.202-222
    Source
    Towards a worldwide library: a ten year forecast. Proceedings of the 19th International Essen Symposium, 23-26 Sept 1996. Ed.: A.H. Helal u. J.W. Weiss
  19. Feitelson, D.G.; Yovel, U.: Predictive ranking of computer scientists using CiteSeer data (2004) 0.02 
    0.015197537 = product of:
  0.03799384 = sum of:
    0.034221016 = weight(_text_:u in 1259) [ClassicSimilarity], result of:
      0.034221016 = score(doc=1259,freq=2.0), product of:
        0.13513014 = queryWeight, product of:
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.04126811 = queryNorm
        0.25324488 = fieldWeight in 1259, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.2744443 = idf(docFreq=4547, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1259)
    0.003772824 = weight(_text_:s in 1259) [ClassicSimilarity], result of:
      0.003772824 = score(doc=1259,freq=2.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.08408674 = fieldWeight in 1259, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1259)
  0.4 = coord(2/5)
    Source
    Journal of documentation. 60(2004) no.1, S.44-61
  20. Huang, S.; Qian, J.; Huang, Y.; Lu, W.; Bu, Y.; Yang, J.; Cheng, Q.: Disclosing the relationship between citation structure and future impact of a publication (2022) 0.01 
    0.014545164 = product of:
  0.03636291 = sum of:
    0.03255178 = weight(_text_:j in 621) [ClassicSimilarity], result of:
      0.03255178 = score(doc=621,freq=4.0), product of:
        0.13112928 = queryWeight, product of:
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.04126811 = queryNorm
        0.2482419 = fieldWeight in 621, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          3.1774964 = idf(docFreq=5010, maxDocs=44218)
          0.0390625 = fieldNorm(doc=621)
    0.003811128 = weight(_text_:s in 621) [ClassicSimilarity], result of:
      0.003811128 = score(doc=621,freq=4.0), product of:
        0.044868242 = queryWeight, product of:
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.04126811 = queryNorm
        0.08494043 = fieldWeight in 621, product of:
          2.0 = tf(freq=4.0), with freq of:
            4.0 = termFreq=4.0
          1.0872376 = idf(docFreq=40523, maxDocs=44218)
          0.0390625 = fieldNorm(doc=621)
  0.4 = coord(2/5)
    Source
    Journal of the Association for Information Science and Technology. 73(2022) no.7, S.1025-1042

Authors

Years

Languages

  • e 236
  • d 39
  • chi 2
  • More… Less…

Types

  • a 267
  • el 6
  • m 5
  • s 4
  • r 1
  • More… Less…

Themes

Subjects

Classifications