Search (22 results, page 1 of 2)

  • × theme_ss:"Citation indexing"
  1. Nicolaisen, J.: Citation analysis (2007) 0.03
    0.027785558 = product of:
      0.055571117 = sum of:
        0.055571117 = product of:
          0.11114223 = sum of:
            0.11114223 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.11114223 = score(doc=6091,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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
  2. Døsen, K.: One more reference on self-reference (1992) 0.03
    0.027785558 = product of:
      0.055571117 = sum of:
        0.055571117 = product of:
          0.11114223 = sum of:
            0.11114223 = weight(_text_:22 in 4604) [ClassicSimilarity], result of:
              0.11114223 = score(doc=4604,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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)
      0.5 = coord(1/2)
    
    Date
    7. 2.2005 14:10:22
  3. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.02
    0.024559196 = product of:
      0.049118392 = sum of:
        0.049118392 = product of:
          0.098236784 = sum of:
            0.098236784 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.098236784 = score(doc=3925,freq=4.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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. Klein, A.: Von der Schneeflocke zur Lawine : Möglichkeiten der Nutzung freier Zitationsdaten in Bibliotheken (2017) 0.02
    0.022456557 = product of:
      0.044913113 = sum of:
        0.044913113 = product of:
          0.089826226 = sum of:
            0.089826226 = weight(_text_:daten in 4002) [ClassicSimilarity], result of:
              0.089826226 = score(doc=4002,freq=2.0), product of:
                0.24402376 = queryWeight, product of:
                  4.759573 = idf(docFreq=1029, maxDocs=44218)
                  0.051270094 = queryNorm
                0.36810443 = fieldWeight in 4002, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.759573 = idf(docFreq=1029, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=4002)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Zitationen spielen eine wichtige Rolle im wissenschaftlichen Diskurs, in der Recherchepraxis sowie im Bereich der Bibliometrie. In jüngster Zeit gibt es zunehmend Initiativen, die Zitationen als Open Data zur freien Nachnutzung verfügbar machen. Der Beitrag beschreibt den Stand der Entwicklung dieser Initiativen und zeigt, dass in nächster Zeit eine kritische Masse von Daten entstehen könnte, aus denen sich gerade für Bibliotheken neue Perspektiven ergeben. Als konkrete Möglichkeit zur Partizipation für Bibliotheken wird das DFG-Projekt Linked Open Citation Database (LOC-DB) vorgestellt.
  5. Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002) 0.02
    0.017365975 = product of:
      0.03473195 = sum of:
        0.03473195 = product of:
          0.0694639 = sum of:
            0.0694639 = weight(_text_:22 in 613) [ClassicSimilarity], result of:
              0.0694639 = score(doc=613,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = queryNorm
                0.38690117 = fieldWeight in 613, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.078125 = fieldNorm(doc=613)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Source
    Password. 2002, H.6, S.22-25
  6. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01
    0.014735519 = product of:
      0.029471038 = sum of:
        0.029471038 = product of:
          0.058942076 = sum of:
            0.058942076 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.058942076 = score(doc=2763,freq=4.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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
  7. Bensman, S.J.: Eugene Garfield, Francis Narin, and PageRank : the theoretical bases of the Google search engine (2013) 0.01
    0.013892779 = product of:
      0.027785558 = sum of:
        0.027785558 = product of:
          0.055571117 = sum of:
            0.055571117 = weight(_text_:22 in 1149) [ClassicSimilarity], result of:
              0.055571117 = score(doc=1149,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = queryNorm
                0.30952093 = fieldWeight in 1149, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0625 = fieldNorm(doc=1149)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    17.12.2013 11:02:22
  8. Czepel, R.: ¬Die Geographie der wissenschaftlichen Zitierung (2003) 0.01
    0.0128323175 = product of:
      0.025664635 = sum of:
        0.025664635 = product of:
          0.05132927 = sum of:
            0.05132927 = weight(_text_:daten in 2273) [ClassicSimilarity], result of:
              0.05132927 = score(doc=2273,freq=2.0), product of:
                0.24402376 = queryWeight, product of:
                  4.759573 = idf(docFreq=1029, maxDocs=44218)
                  0.051270094 = queryNorm
                0.21034539 = fieldWeight in 2273, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  4.759573 = idf(docFreq=1029, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2273)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    Ein britischer Forscher hat sich die Mühe gemacht, die geografischen Muster der Zitierungen von 1981 bis zur Gegenwart freizulegen. Das Ergebnis: Die publizistische Wahrnehmung ist in der Wissenschaft äußerst ungleich verteilt. Die USA dominieren mit großem Abstand vor dem Rest der WeIt. Und auch dort konzentrieren sich die Verweise auf einige wenige Ballungsräume der Forschung. Michael Batty vom Centre for Advanced Spatial Analysis in London bediente sich für seine Analyse der Datenbank "ISIHighlyCited.com" (http: //www.isihighlycited.com/), in der Forscher aus verschiedenen Disziplinen aufgelistet werden, die die weltweit meisten Zitate auf sich gezogen haben. In diesen Ranglisten nehmen die akademischen Edelschmieden aus den USA etwa jene Rolle ein, die Österreichische Athleten im Alpinschisport besetzen. Einzig der Forschungsraum London kann mit der Konkurrenz aus Übersee halbwegs mithalten. Der Artikel "Citation Geography: It's About Location" von Michael Batty erschien im Magazin "The Scientist" (Band 17, Heft 16/10, Ausgabe vom 25.8.03; http://www.thescientist.com/yr2003/aug/opinion 030825.html). Die Zeitschrift ist nach individueller Registrierung frei zugänglich. Der Homepage des Autors http: //www.casa.ucl.ac.uk/citations/ können weitere Details entnommen werden. Ob die Anzahl derZitate auch etwas über die wissenschaftliche Qualität aussagt, ist genau so Gegenstand von Diskussionen, wie dies etwa bei den "Impact-Faktoren" von Journalen der Fall ist (vgl. "Kann wissenschaftliche Qualität gemessen werden?", http://science.orf.at/science/news/58648). Ganz wertfrei kann man die ISI-Daten jedenfalls dazu verwenden, um herauszufinden, in welchem Land, in welcher Stadt und in welcher Institution die meist zitierten Forscher dieses Erdballs sitzen. Das Ergebnis dieser von Michael Batty erstellten "Geografie derwissenschaftlichen Zitierung" ist eindeutig: Einige Wenige ziehen den Großteil der publizistischen Aufmerksamkeit auf sich - und lassen für den Rest nur wenig über. Diese Aussage gilt gleichermaßen für Ranglisten von Städten, Institutionen und Ländern. Und: In allen drei Fällen kommen die Spitzereiter aus dem US-amerikanischen Raum.
  9. Garfield, E.: Recollections of Irving H. Sher 1924-1996 : Polymath/information scientist extraordinaire (2001) 0.01
    0.012156182 = product of:
      0.024312364 = sum of:
        0.024312364 = product of:
          0.048624728 = sum of:
            0.048624728 = weight(_text_:22 in 6920) [ClassicSimilarity], result of:
              0.048624728 = score(doc=6920,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = queryNorm
                0.2708308 = fieldWeight in 6920, 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=6920)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    16.12.2001 14:01:22
  10. Van der Veer Martens, B.; Goodrum, G.: ¬The diffusion of theories : a functional approach (2006) 0.01
    0.012156182 = product of:
      0.024312364 = sum of:
        0.024312364 = product of:
          0.048624728 = sum of:
            0.048624728 = weight(_text_:22 in 5269) [ClassicSimilarity], result of:
              0.048624728 = score(doc=5269,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 7.2006 15:20:01
  11. Tay, A.: ¬The next generation discovery citation indexes : a review of the landscape in 2020 (2020) 0.01
    0.012156182 = product of:
      0.024312364 = sum of:
        0.024312364 = product of:
          0.048624728 = sum of:
            0.048624728 = weight(_text_:22 in 40) [ClassicSimilarity], result of:
              0.048624728 = score(doc=40,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = queryNorm
                0.2708308 = fieldWeight in 40, 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=40)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    17.11.2020 12:22:59
  12. Campanario, J.M.: Have referees rejected some of the most-cited articles of all times? (1996) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 4215) [ClassicSimilarity], result of:
              0.041678336 = score(doc=4215,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    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
  13. Snyder, H.; Bonzi, S.: Patterns of self-citation across disciplines : 1980-1989 (1998) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 3692) [ClassicSimilarity], result of:
              0.041678336 = score(doc=3692,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 5.1999 19:33:24
  14. wst: Cut-and-paste-Wissenschaft (2003) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 1270) [ClassicSimilarity], result of:
              0.041678336 = score(doc=1270,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = queryNorm
                0.23214069 = fieldWeight in 1270, 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=1270)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Content
    "Mikhail Simkin und Vwani Roychowdhury von der University of Califomia, Los Angeles, haben eine in der wissenschaftlichen Gemeinschaft verbreitete Unsitte erstmals quantitativ erfasst. Die Wissenschaftler analysierten die Verbreitung von Druckfehlern in den Literaturlisten wissenschaftlicher Arbeiten (www.arxiv.org/abs/cond-mat/0212043). 78 Prozent aller zitierten Aufsätze - so schätzen die Forscher - haben die zitierenden Wissenschaftler demnach nicht gelesen, sondern nur per 'cut and paste' von einer Vorlage in ihre eigene Literaturliste übernommen. Das könne man beispielsweise abschätzen aus der Analyse fehlerhafter Seitenangaben in der Literaturliste eines 1973 veröffentlichten Aufsatzes über die Struktur zweidimensionaler Kristalle: Dieser Aufsatz ist rund 4300 mal zitiert worden. In 196 Fällen enthalten die Zitate jedoch Fehler in der Jahreszahl, dem Band der Zeitschrift oder der Seitenzahl, die als Indikatoren für cut and paste genommen werden können, denn man kann, obwohl es Milliarden Möglichkeiten gibt, nur 45 verschiedene Arten von Druckfehlern unterscheiden. In erster Näherung ergibt sich eine Obergrenze für die Zahl der `echten Leser' daher aus der Zahl der unterscheidbaren Druckfehler (45) geteilt durch die Gesamtzahl der Publikationen mit Druckfehler (196), das macht etwa 22 Prozent."
  15. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
              0.041678336 = score(doc=201,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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
  16. H-Index auch im Web of Science (2008) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
              0.041678336 = score(doc=590,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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
  17. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.041678336 = score(doc=994,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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
  18. Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
              0.041678336 = score(doc=2064,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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)
      0.5 = coord(1/2)
    
    Date
    31. 7.2008 14:22:05
  19. Ding, Y.; Zhang, G.; Chambers, T.; Song, M.; Wang, X.; Zhai, C.: Content-based citation analysis : the next generation of citation analysis (2014) 0.01
    0.010419584 = product of:
      0.020839168 = sum of:
        0.020839168 = product of:
          0.041678336 = sum of:
            0.041678336 = weight(_text_:22 in 1521) [ClassicSimilarity], result of:
              0.041678336 = score(doc=1521,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = queryNorm
                0.23214069 = fieldWeight in 1521, 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=1521)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 8.2014 16:52:04
  20. Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008) 0.01
    0.008682988 = product of:
      0.017365975 = sum of:
        0.017365975 = product of:
          0.03473195 = sum of:
            0.03473195 = weight(_text_:22 in 1934) [ClassicSimilarity], result of:
              0.03473195 = score(doc=1934,freq=2.0), product of:
                0.17953913 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.051270094 = 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