Search (29 results, page 1 of 2)

  • × theme_ss:"Citation indexing"
  • × year_i:[2000 TO 2010}
  1. Nicolaisen, J.: Citation analysis (2007) 0.02 
    0.022620002 = product of:
  0.11310001 = sum of:
    0.11310001 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
      0.11310001 = score(doc=6091,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    13. 7.2008 19:53:22
  2. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.02 
    0.019993445 = product of:
  0.09996723 = sum of:
    0.09996723 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
      0.09996723 = score(doc=3925,freq=4.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    22. 7.2006 15:22:28
  3. Garfield, E.; Stock, W.G.: Citation Consciousness : Interview with Eugene Garfiels, chairman emeritus of ISI; Philadelphia (2002) 0.01 
    0.014137501 = product of:
  0.0706875 = sum of:
    0.0706875 = weight(_text_:22 in 613) [ClassicSimilarity], result of:
      0.0706875 = score(doc=613,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Source
    Password. 2002, H.6, S.22-25
  4. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.01 
    0.011996068 = product of:
  0.05998034 = sum of:
    0.05998034 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
      0.05998034 = score(doc=2763,freq=4.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    22. 3.2009 19:22:35
  5. ¬The Web of knowledge : Festschrift in honor of Eugene Garfield (2000) 0.01 
    0.011064345 = product of:
  0.055321723 = sum of:
    0.055321723 = weight(_text_:21 in 461) [ClassicSimilarity], result of:
      0.055321723 = score(doc=461,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.3422761 = fieldWeight in 461, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.078125 = fieldNorm(doc=461)
  0.2 = coord(1/5)
    Date
    3. 2.1997 20:43:21
  6. Garfield, E.: Recollections of Irving H. Sher 1924-1996 : Polymath/information scientist extraordinaire (2001) 0.01 
    0.00989625 = product of:
  0.04948125 = sum of:
    0.04948125 = weight(_text_:22 in 6920) [ClassicSimilarity], result of:
      0.04948125 = score(doc=6920,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    16.12.2001 14:01:22
  7. Van der Veer Martens, B.; Goodrum, G.: ¬The diffusion of theories : a functional approach (2006) 0.01 
    0.00989625 = product of:
  0.04948125 = sum of:
    0.04948125 = weight(_text_:22 in 5269) [ClassicSimilarity], result of:
      0.04948125 = score(doc=5269,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    22. 7.2006 15:20:01
  8. wst: Cut-and-paste-Wissenschaft (2003) 0.01 
    0.0084825 = product of:
  0.0424125 = sum of:
    0.0424125 = weight(_text_:22 in 1270) [ClassicSimilarity], result of:
      0.0424125 = score(doc=1270,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    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."
  9. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.01 
    0.0084825 = product of:
  0.0424125 = sum of:
    0.0424125 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
      0.0424125 = score(doc=201,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    3. 1.2007 17:22:03
  10. H-Index auch im Web of Science (2008) 0.01 
    0.0084825 = product of:
  0.0424125 = sum of:
    0.0424125 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
      0.0424125 = score(doc=590,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    6. 4.2008 19:04:22
  11. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.01 
    0.0084825 = product of:
  0.0424125 = sum of:
    0.0424125 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
      0.0424125 = score(doc=994,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    26.12.2007 19:22:05
  12. Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008) 0.01 
    0.0084825 = product of:
  0.0424125 = sum of:
    0.0424125 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
      0.0424125 = score(doc=2064,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    31. 7.2008 14:22:05
  13. Wagner-Döbler, R.: ¬Die Nutzung von Zitationsindizes durch deutsche Soziologen : Ergebnisse einer Umfrage (2001) 0.01 
    0.007745042 = product of:
  0.03872521 = sum of:
    0.03872521 = weight(_text_:21 in 6831) [ClassicSimilarity], result of:
      0.03872521 = score(doc=6831,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.23959327 = fieldWeight in 6831, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.0546875 = fieldNorm(doc=6831)
  0.2 = coord(1/5)
    Date
    21. 2.1997 19:37:24
  14. Neuhaus, C.; Daniel, H.-D.: Data sources for performing citation analysis : an overview (2008) 0.01 
    0.007745042 = product of:
  0.03872521 = sum of:
    0.03872521 = weight(_text_:21 in 1735) [ClassicSimilarity], result of:
      0.03872521 = score(doc=1735,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.23959327 = fieldWeight in 1735, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.0546875 = fieldNorm(doc=1735)
  0.2 = coord(1/5)
    Date
    21. 3.2008 14:24:49
  15. Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008) 0.01 
    0.0070687504 = product of:
  0.03534375 = sum of:
    0.03534375 = weight(_text_:22 in 1934) [ClassicSimilarity], result of:
      0.03534375 = score(doc=1934,freq=2.0), product of:
        0.1827017 = queryWeight, product of:
          3.5018296 = idf(docFreq=3622, maxDocs=44218)
          0.052173212 = 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)
  0.2 = coord(1/5)
    Date
    22. 6.2008 12:54:12
  16. Davis, P.M.; Cohen, S.A.: ¬The effect of the Web on undergraduate citation behavior 1996-1999 (2001) 0.01 
    0.0066386065 = product of:
  0.033193033 = sum of:
    0.033193033 = weight(_text_:21 in 5768) [ClassicSimilarity], result of:
      0.033193033 = score(doc=5768,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.20536566 = fieldWeight in 5768, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.046875 = fieldNorm(doc=5768)
  0.2 = coord(1/5)
    Abstract
    A citation analysis of undergraduate term papers in microeconomics revealed a significant decrease in the frequency of scholarly resources cited between 1996 and 1999. Book citations decreased from 30% to 19%, newspaper citations increased from 7% to 19%, and Web citations increased from 9% to 21%. Web citations checked in 2000 revealed that only 18% of URLs cited in 1996 led to the correct Internet document. For 1999 bibliographies, only 55% of URLs led to the correct document. The authors recommend (1) setting stricter guidelines for acceptable citations in course assignments; (2) creating and maintaining scholarly portals for authoritative Web sites with a commitment to long-term access; and (3) continuing to instruct students how to critically evaluate resources
  17. Gorraiz, J.; Schlögl, C.: Zusammenhang von Zeitschriftennachfrage und -zitationshäufigkeiten : ¬Eine bibliometrische Analyse eines Dokumentlieferdienstes am Beispiel von Subito (2003) 0.01 
    0.0066386065 = product of:
  0.033193033 = sum of:
    0.033193033 = weight(_text_:21 in 718) [ClassicSimilarity], result of:
      0.033193033 = score(doc=718,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.20536566 = fieldWeight in 718, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.046875 = fieldNorm(doc=718)
  0.2 = coord(1/5)
    Date
    17.12.1996 21:11:09
  18. Mayr, P.; Walter, A.-K.: Abdeckung und Aktualität des Suchdienstes Google Scholar (2006) 0.01 
    0.0066386065 = product of:
  0.033193033 = sum of:
    0.033193033 = weight(_text_:21 in 5131) [ClassicSimilarity], result of:
      0.033193033 = score(doc=5131,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.20536566 = fieldWeight in 5131, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.046875 = fieldNorm(doc=5131)
  0.2 = coord(1/5)
    Date
    21. 2.1997 19:37:24
  19. Abt, H.A.; Garfield, E.: Is the relationship between numbers of references and paper lengths the same for all sciences? (2002) 0.01 
    0.0066386065 = product of:
  0.033193033 = sum of:
    0.033193033 = weight(_text_:21 in 5223) [ClassicSimilarity], result of:
      0.033193033 = score(doc=5223,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.20536566 = fieldWeight in 5223, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.046875 = fieldNorm(doc=5223)
  0.2 = coord(1/5)
    Date
    21. 7.2006 10:52:41
  20. Schneider, K.: Scopus contra ISI-WOS : Versuch einer vergleichenden Bewertung aus pharmakognostischer Sicht (2006) 0.01 
    0.0066386065 = product of:
  0.033193033 = sum of:
    0.033193033 = weight(_text_:21 in 39) [ClassicSimilarity], result of:
      0.033193033 = score(doc=39,freq=2.0), product of:
        0.16162895 = queryWeight, product of:
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.052173212 = queryNorm
        0.20536566 = fieldWeight in 39, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          3.0979297 = idf(docFreq=5425, maxDocs=44218)
          0.046875 = fieldNorm(doc=39)
  0.2 = coord(1/5)
    Source
    Online Mitteilungen. 2006, Nr.85, S.21-24 [=Mitteilungen VÖB 59(2006) H.1]

Authors

Languages

  • e 18
  • d 11

Types

  • a 28
  • el 1
  • m 1
  • s 1
  • More… Less…

Themes