Search (50 results, page 1 of 3)

  • × year_i:[1990 TO 2000}
  • × theme_ss:"Citation indexing"
  1. Glänzel, W.: Visual bibliometrics : eine visuelle Oberfläche zur Erweiterung der Nutzungsmöglichkeiten bibliographischer Datenbanken (1996) 0.01
    0.011117952 = product of:
      0.08338463 = sum of:
        0.01906849 = weight(_text_:und in 6110) [ClassicSimilarity], result of:
          0.01906849 = score(doc=6110,freq=6.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.2968967 = fieldWeight in 6110, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6110)
        0.06431614 = weight(_text_:informationswissenschaft in 6110) [ClassicSimilarity], result of:
          0.06431614 = score(doc=6110,freq=4.0), product of:
            0.13053758 = queryWeight, product of:
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.028978055 = queryNorm
            0.4927021 = fieldWeight in 6110, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6110)
      0.13333334 = coord(2/15)
    
    Abstract
    In einer früheren Studie wurde bereits der 'informationelle Mehrwert' von bibliographischen Datenbanken durch bibliometrische Nutzung untersucht. Im folgenden soll nun eine visuelle Oberfläche vorgestellt werden, die mit Hilfe einer bibliometrischen 'Sekundärdatenbank' einerseits die Nutzungsmöglichkeiten der zugrundeliegenden bibliographischen Datenbanken vor allem in den Bereichen Wissenschaftsinformation, Forschungsevaluation und Wissenschaftspolitik erweitern soll, andererseits aber auch eine Rückkopplung zu den Aufgaben des traditionellen Retrievals erlaubt. Die visuelle Oberfläche 'Visual Bibliometrics' ist eine Erweiterung des CD-Edition des 'Science Citation Index' und des 'Social Science Citation Index'
    Series
    Schriften zur Informationswissenschaft; Bd.27
    Source
    Herausforderungen an die Informationswirtschaft: Informationsverdichtung, Informationsbewertung und Datenvisualisierung. Proceedings des 5. Internationalen Symposiums für Informationswissenschaft (ISI'96), Humboldt-Universität zu Berlin, 17.-19. Oktober 1996. Hrsg.: J. Krause u.a
  2. White, H.D.; McCain, K.W.: Visualizing a discipline : an author co-citation analysis of information science, 1972-1995 (1998) 0.01
    0.007841472 = product of:
      0.05881103 = sum of:
        0.05197529 = weight(_text_:informationswissenschaft in 5020) [ClassicSimilarity], result of:
          0.05197529 = score(doc=5020,freq=2.0), product of:
            0.13053758 = queryWeight, product of:
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.028978055 = queryNorm
            0.3981634 = fieldWeight in 5020, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              4.504705 = idf(docFreq=1328, maxDocs=44218)
              0.0625 = fieldNorm(doc=5020)
        0.006835742 = product of:
          0.013671484 = sum of:
            0.013671484 = weight(_text_:information in 5020) [ClassicSimilarity], result of:
              0.013671484 = score(doc=5020,freq=6.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.2687516 = fieldWeight in 5020, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5020)
          0.5 = coord(1/2)
      0.13333334 = coord(2/15)
    
    Abstract
    Presents an extensive domain analysis of information science in terms of its authors. Names of those most frequently cited in 12 key journals from 1972 through 1995 were retrieved from Social SciSearch via Dialog. The top 120 were submitted to author co-citation analyzes, yielding automatic classifications relevant to histories of the field
    Field
    Informationswissenschaft
    Source
    Journal of the American Society for Information Science. 49(1998) no.4, S.327-355
  3. Døsen, K.: One more reference on self-reference (1992) 0.00
    0.0020939345 = product of:
      0.031409014 = sum of:
        0.031409014 = product of:
          0.06281803 = sum of:
            0.06281803 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
              0.06281803 = score(doc=4604,freq=2.0), product of:
                0.101476215 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.028978055 = 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)
      0.06666667 = coord(1/15)
    
    Date
    7. 2.2005 14:10:22
  4. Campanario, J.M.: Have referees rejected some of the most-cited articles of all times? (1996) 0.00
    0.0019651123 = product of:
      0.029476684 = sum of:
        0.029476684 = sum of:
          0.005919926 = weight(_text_:information in 4215) [ClassicSimilarity], result of:
            0.005919926 = score(doc=4215,freq=2.0), product of:
              0.050870337 = queryWeight, product of:
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.028978055 = queryNorm
              0.116372846 = fieldWeight in 4215, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.046875 = fieldNorm(doc=4215)
          0.023556758 = weight(_text_:22 in 4215) [ClassicSimilarity], result of:
            0.023556758 = score(doc=4215,freq=2.0), product of:
              0.101476215 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.028978055 = queryNorm
              0.23214069 = fieldWeight in 4215, 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=4215)
      0.06666667 = coord(1/15)
    
    Abstract
    In this article a quantitative study is reported on the resistance that scientists may encounter when they do innovative work or when they attempt to publish articles that later become highly cited. A set of 205 commentaries by authors of some of the most-cited papers of all times have been examined in order to identify those articles whose authors encountered difficulty in getting his or her work published. There are 22 commentaries (10,7%) in which authors mention some difficulty or resistance in doing or publishing the research reported in the article. Three of the articles which had problems in being published are the most cited from their respective journals. According the authors' commentaries, although sometimes referees' negative evaluations can help improve the articles, in other instances referees and editors wrongly rejected the highly cited articles
    Source
    Journal of the American Society for Information Science. 47(1996) no.4, S.302-310
  5. Snyder, H.; Bonzi, S.: Patterns of self-citation across disciplines : 1980-1989 (1998) 0.00
    0.0019651123 = product of:
      0.029476684 = sum of:
        0.029476684 = sum of:
          0.005919926 = weight(_text_:information in 3692) [ClassicSimilarity], result of:
            0.005919926 = score(doc=3692,freq=2.0), product of:
              0.050870337 = queryWeight, product of:
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.028978055 = queryNorm
              0.116372846 = fieldWeight in 3692, product of:
                1.4142135 = tf(freq=2.0), with freq of:
                  2.0 = termFreq=2.0
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.046875 = fieldNorm(doc=3692)
          0.023556758 = weight(_text_:22 in 3692) [ClassicSimilarity], result of:
            0.023556758 = score(doc=3692,freq=2.0), product of:
              0.101476215 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.028978055 = queryNorm
              0.23214069 = fieldWeight in 3692, 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=3692)
      0.06666667 = coord(1/15)
    
    Date
    22. 5.1999 19:33:24
    Source
    Journal of information science. 24(1998) no.6, S.431-435
  6. Stock, W.G.: Wissenschaftsevaluation mittels Datenbanken : methodisch einwandfrei? (1995) 0.00
    0.0018160468 = product of:
      0.027240701 = sum of:
        0.027240701 = weight(_text_:und in 2443) [ClassicSimilarity], result of:
          0.027240701 = score(doc=2443,freq=6.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.42413816 = fieldWeight in 2443, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.078125 = fieldNorm(doc=2443)
      0.06666667 = coord(1/15)
    
    Abstract
    Als Maß für die Produktivität und den Einfluß von Forschern, wissenschaftlichen Einrichtungen und Fachbereichen dienen häufig anhand von Publikations- und Zitationsanalysen erstellte Ranglisten. Doch nach welchen Kriterien sind die in elektronischen Fachdatenbanken gespeicherten Informationen auszuwerten, um ein einigermaßen zutreffendes Abbild der Forschungsleistung zu erhalten?
  7. Göbel, S.: Aspekte der Mathematikliteratur : Untersuchungen in verschiedenen Datenbanken (1997) 0.00
    0.0016775922 = product of:
      0.025163881 = sum of:
        0.025163881 = weight(_text_:und in 2166) [ClassicSimilarity], result of:
          0.025163881 = score(doc=2166,freq=8.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.39180204 = fieldWeight in 2166, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0625 = fieldNorm(doc=2166)
      0.06666667 = coord(1/15)
    
    Abstract
    Literaturdatenbanken wurden eigentlich mit zwei Zielen aufgebaut: einerseits Fachliteratur zu archivieren und zu dokumentieren und andererseits die Literaturhinweise den Wissenschaftlern für Recherchen zur Verfügung zu stellen. Aus diesen gespeicherten Datenmengen kann man baer auch allgemeine Erkenntnisse über die Literatur eines Fachgebietes und das Verhalten der Forscher gewinnen. Vor allem seit den sechziger Jahren, seit dem Aufbau des Science Citation Index - in dem man auch nach zitierten Arbeiten suchen kann - gibt es eine Fülle von informationswisenschaftlichen und wissenssoziologischen Untersuchungen mit Datenbanken
  8. Gering, E.: ¬Die Analyse von Online-Datenbanken : ein Instrument für das Beobachten von Forschungsaktivitäten; dargestellt an einem Forschungsfeld der Festkörperphysik (1995) 0.00
    0.0014528375 = product of:
      0.02179256 = sum of:
        0.02179256 = weight(_text_:und in 2660) [ClassicSimilarity], result of:
          0.02179256 = score(doc=2660,freq=6.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.33931053 = fieldWeight in 2660, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0625 = fieldNorm(doc=2660)
      0.06666667 = coord(1/15)
    
    Abstract
    Sinnvolle forschungspolitische bzw. forschungsstrategische Entscheidungsprozesse bedürfen beim Wissenschafts- und Forschungsmanagement ausreichender Informationen hinsichtlich der Forschungsaktivitäten bestimmter Wissenschaftlergruppen, Institutionen bzw. Länder. Durch entsprechende Vergleichsuntersuchungen lassen sich u.a. auch thematische, länderweite bzw. zeitkritische Forschungsschwerpunkte herausarbeiten. Die folgende Arbeit skizziert die Möglichkeiten von Forschungsanalysen mittels Online-Datenbanken und verdeutlicht die spezifischen Möglichekeiten und Probleme am Beispiel von Arbeiten aus der Festkörperphysik
  9. Stock, W.G.: ¬Ein Netz wissenschaftlicher Informationen : gesponnen aus Fußnoten (1999) 0.00
    0.0010896281 = product of:
      0.01634442 = sum of:
        0.01634442 = weight(_text_:und in 3890) [ClassicSimilarity], result of:
          0.01634442 = score(doc=3890,freq=6.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.2544829 = fieldWeight in 3890, product of:
              2.4494898 = tf(freq=6.0), with freq of:
                6.0 = termFreq=6.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.046875 = fieldNorm(doc=3890)
      0.06666667 = coord(1/15)
    
    Abstract
    Das ISI in Philadelphia bündelt seine großen Zitationsdatenbanken und bietet sie (vorzugsweise als Intranet-, aber auch als Internetlösung) als 'Web of Science'an. Im derzeitigen entwicklungsstand geht 'Web of Science' bis in die 70er Jahre zurück und weist damit knapp 20 Mill. Quellenartikel mit darin enthaltenen rund 300 Mill. Zitationen in einer einzigen datenbank nach. Neben 'gewohnten' Suchstrategien etwa nach Sachthemen oder Namen werden zitationsanalytische Suchstrategien geboten: Recherchen nach zitierter Literatur, nach zitierenden Artikeln und nach (im Sinne gemeinsamer Fußnoten) 'verwandten' Artikeln. Die Ausgabefunktionen umfassen Document Delivery via ISI sowie Links zu Artikeln, die parallel zur Druckausgabe im WWW erscheinen. Durch die Multidisziplinarität der ISI-Datenbanken sind als Kundenkreis vor allem Einrichtungen angesprochen, die mehrere Wissenschaftsfächer berühren. Hochschulbibliotheken oder Bibliotheken großer Forschungseinrichtungen dürften am 'Web of Science' kaum vorbeikommen. Parallele Produkte bei Online-Archiven, auf CD-ROM oder als Druckausgabe verlieren an Bedeutung
  10. Schlaffer, H.: Selbstzitat (1997) 0.00
    0.0010484952 = product of:
      0.015727427 = sum of:
        0.015727427 = weight(_text_:und in 7464) [ClassicSimilarity], result of:
          0.015727427 = score(doc=7464,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.24487628 = fieldWeight in 7464, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.078125 = fieldNorm(doc=7464)
      0.06666667 = coord(1/15)
    
    Abstract
    'Zwischenruf' zur Zitierpraxis im Wissenschaftsbereich: "Jeder kann seine Plazierung auf dieser Weltrangliste gelehrter Eitelkeit verbessern, indem er sich so oft und andere so wenig wie möglich zitiert. Die Verbreitung des Ruhms, den man braucht, nimmt man am besten selbst in die Hand, von Jugend an"
  11. Göbel, S.: What the Citation Index is good for (1997) 0.00
    0.0010484952 = product of:
      0.015727427 = sum of:
        0.015727427 = weight(_text_:und in 376) [ClassicSimilarity], result of:
          0.015727427 = score(doc=376,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.24487628 = fieldWeight in 376, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.078125 = fieldNorm(doc=376)
      0.06666667 = coord(1/15)
    
    Footnote
    Ein Leserbrief zu Sinn und Nutzen des Science Citation Index als Erwiderung auf einen Beitrag von A. Octavio in Mathematical intelligencer 18(1996) no.4, S.9-11
  12. Marx, W.: Wie mißt man Forschungsqualität? : der Science Citation Index - ein Maßstab für die Bewertung (1996) 0.00
    8.387961E-4 = product of:
      0.012581941 = sum of:
        0.012581941 = weight(_text_:und in 5036) [ClassicSimilarity], result of:
          0.012581941 = score(doc=5036,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.19590102 = fieldWeight in 5036, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.0625 = fieldNorm(doc=5036)
      0.06666667 = coord(1/15)
    
    Abstract
    Ein überfordertes Gutachter-System, knapper fließende Forschungsgelder sowie die starke Faszination von Ranglisten bewirken zunehmend den Einsatz bibliometrischer Methoden zur Messung von Forschungsqualität. Grundlage der meisten Bewertungen ist der Science Citation Index, der nun auch in der Version als Online-Datenbank für umfangreiche Analysen genutzt werden kann. Erweiterungen der Retrievalsprache beim Host STN International ermöglichen statistische Analysen, die bisher nur dem SCI-Hersteller und wenigen Spezialisten vorbehalten waren. Voraussetzung für eine sinnvolle Anwendung sind vor allem die Wahl geeigneter Selektionskriterien sowie die sorgfältige Interpretation der Ergebnisse im Rahmen der Grenzen dieser Methoden
  13. McCain, K.W.: Mapping authors in intellectual space : a technical overview (1990) 0.00
    5.2621565E-4 = product of:
      0.0078932345 = sum of:
        0.0078932345 = product of:
          0.015786469 = sum of:
            0.015786469 = weight(_text_:information in 6903) [ClassicSimilarity], result of:
              0.015786469 = score(doc=6903,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.3103276 = fieldWeight in 6903, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.125 = fieldNorm(doc=6903)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science. 41(1990) no.6, S.433-443
  14. Kelland, J.L.; Young, A.P.: Citation patterns and library use (1998) 0.00
    5.2621565E-4 = product of:
      0.0078932345 = sum of:
        0.0078932345 = product of:
          0.015786469 = sum of:
            0.015786469 = weight(_text_:information in 1301) [ClassicSimilarity], result of:
              0.015786469 = score(doc=1301,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.3103276 = fieldWeight in 1301, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.125 = fieldNorm(doc=1301)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Encyclopedia of library and information science. Vol.61, [=Suppl.24]
  15. Snyder, H.; Cronin, B.; Davenport, E.: What's the use of citation? : Citation analysis as a literature topic in selected disciplines of the social sciences (1995) 0.00
    4.8335994E-4 = product of:
      0.007250399 = sum of:
        0.007250399 = product of:
          0.014500798 = sum of:
            0.014500798 = weight(_text_:information in 1825) [ClassicSimilarity], result of:
              0.014500798 = score(doc=1825,freq=12.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.2850541 = fieldWeight in 1825, product of:
                  3.4641016 = tf(freq=12.0), with freq of:
                    12.0 = termFreq=12.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046875 = fieldNorm(doc=1825)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Abstract
    Reports results of a study to investigate the place and role of citation analysis in selected disciplines in the social sciences, including library and information science. 5 core library and information science periodicals: Journal of documentation; Library quarterly; Journal of the American Society for Information Science; College and research libraries; and the Journal of information science, were studed to determine the percentage of articles devoted to citation analysis and develop an indictive typology to categorize the major foci of research being conducted under the rubric of citation analysis. Similar analysis was conducted for periodicals in other social sciences disciplines. Demonstrates how the rubric can be used to dertermine how citatiion analysis is applied within library and information science and other disciplines. By isolating citation from bibliometrics in general, this work is differentiated from other, previous studies. Analysis of data from a 10 year sample of transdisciplinary social sciences literature suggests that 2 application areas predominate: the validity of citation as an evaluation tool; and impact or performance studies of authors, periodicals, and institutions
    Source
    Journal of information science. 21(1995) no.2, S.75-85
  16. ISI offers intranet access to its citation index databases (1997) 0.00
    4.6511332E-4 = product of:
      0.0069766995 = sum of:
        0.0069766995 = product of:
          0.013953399 = sum of:
            0.013953399 = weight(_text_:information in 554) [ClassicSimilarity], result of:
              0.013953399 = score(doc=554,freq=4.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27429342 = fieldWeight in 554, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.078125 = fieldNorm(doc=554)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Abstract
    Announces the availability of the Web of Science, a proprietary Web browser providing intranet access to the Citation Index databases from ISI. The new browser interface will allow researcher to browse indexed information and perform further research. Describes search options
    Source
    Information today. 14(1997) no.4, S.1,26
  17. Bayer, A.E.; Smart, J.C.; McLaughlin, G.W.: Mapping intellectual structure of a scientific subfield through author cocitations (1990) 0.00
    4.604387E-4 = product of:
      0.00690658 = sum of:
        0.00690658 = product of:
          0.01381316 = sum of:
            0.01381316 = weight(_text_:information in 338) [ClassicSimilarity], result of:
              0.01381316 = score(doc=338,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27153665 = fieldWeight in 338, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.109375 = fieldNorm(doc=338)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science. 41(1990) no.6, S.444-452
  18. Shapiro, F.R.: Origins of bibliometrics, citation indexing and citation analysis : the neglected legal literature (1992) 0.00
    4.604387E-4 = product of:
      0.00690658 = sum of:
        0.00690658 = product of:
          0.01381316 = sum of:
            0.01381316 = weight(_text_:information in 4262) [ClassicSimilarity], result of:
              0.01381316 = score(doc=4262,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27153665 = fieldWeight in 4262, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.109375 = fieldNorm(doc=4262)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science. 43(1992), S.337-339
  19. Nazim, A.S.: Subject relationship between articles determined by co-occurrences of keywords in citing and cited titles (1993) 0.00
    4.604387E-4 = product of:
      0.00690658 = sum of:
        0.00690658 = product of:
          0.01381316 = sum of:
            0.01381316 = weight(_text_:information in 6358) [ClassicSimilarity], result of:
              0.01381316 = score(doc=6358,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27153665 = fieldWeight in 6358, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.109375 = fieldNorm(doc=6358)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of information science. 19(1993) no.3, S.225-231
  20. Harter, S.P.; Nisonger, T.E.; Weng, A.: Semantic relationsships between cited and citing articles in library and information science journals (1993) 0.00
    4.0279995E-4 = product of:
      0.006041999 = sum of:
        0.006041999 = product of:
          0.012083998 = sum of:
            0.012083998 = weight(_text_:information in 5644) [ClassicSimilarity], result of:
              0.012083998 = score(doc=5644,freq=12.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.23754507 = fieldWeight in 5644, product of:
                  3.4641016 = tf(freq=12.0), with freq of:
                    12.0 = termFreq=12.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=5644)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Abstract
    The act of referencing another author's work in a scholarly or research paper is usually assumed to signal a direct semantic relationship between the citing and cited work. The present article reports a study that examines this assumption directly. The purpose of the research is to investigate the semantic relationship between citing and cited documents for a sample of document pairs in three journals in library and information science: 'Library journal', 'College and research libraries' and 'Journal of the American Society for Information Science'. A macroanalysis, absed on a comparison of the Library of Congress class numbers assigned citing and cited documents, and a microanalysis, based on a comparison of descriptors assigned citing and cited documents by three indexing and abstracting journals, ERIC, LISA and LiLi, were conducted. Both analyses suggest that the subject similarity among pairs of cited and citing documents is typically very small, supporting a subjective, psychological view of relevance and a trial-and-error, heuristic understanding of the information search and research processes. The results of the study have implications for collection development, for an understanding of psychological relevance, and for the results of doing information retrieval using cited references. Several intriguing methodological questions are raised for future research, including the role of indexing depth, specifity, and quality on the measurement of document similarity
    Source
    Journal of the American Society for Information Science. 44(1993) no.9, S.543-552