Search (31 results, page 2 of 2)

  • × theme_ss:"Citation indexing"
  1. wst: Cut-and-paste-Wissenschaft (2003) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 1270) [ClassicSimilarity], result of:
              0.036938448 = score(doc=1270,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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."
  2. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
              0.036938448 = score(doc=201,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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
  3. H-Index auch im Web of Science (2008) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 590) [ClassicSimilarity], result of:
              0.036938448 = score(doc=590,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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
  4. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.036938448 = score(doc=994,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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
  5. Ma, N.; Guan, J.; Zhao, Y.: Bringing PageRank to the citation analysis (2008) 0.01
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 2064) [ClassicSimilarity], result of:
              0.036938448 = score(doc=2064,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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
  6. 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
    0.009234612 = product of:
      0.018469224 = sum of:
        0.018469224 = product of:
          0.036938448 = sum of:
            0.036938448 = weight(_text_:22 in 1521) [ClassicSimilarity], result of:
              0.036938448 = score(doc=1521,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = 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
  7. Lai, K.-K.; Wu, S.-J.: Using the patent co-citation approach to establish a new patent classification system (2005) 0.01
    0.008927471 = product of:
      0.017854942 = sum of:
        0.017854942 = product of:
          0.035709884 = sum of:
            0.035709884 = weight(_text_:i in 1013) [ClassicSimilarity], result of:
              0.035709884 = score(doc=1013,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.20836058 = fieldWeight in 1013, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1013)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Abstract
    The paper proposes a new approach to create a patent classification system to replace the IPC or UPC system for conducting patent analysis and management. The new approach is based on co-citation analysis of bibliometrics. The traditional approach for management of patents, which is based on either the IPC or UPC, is too general to meet the needs of specific industries. In addition, some patents are placed in incorrect categories, making it difficult for enterprises to carry out R&D planning, technology positioning, patent strategy-making and technology forecasting. Therefore, it is essential to develop a patent classification system that is adaptive to the characteristics of a specific industry. The analysis of this approach is divided into three phases. Phase I selects appropriate databases to conduct patent searches according to the subject and objective of this study and then select basic patents. Phase II uses the co-cited frequency of the basic patent pairs to assess their similarity. Phase III uses factor analysis to establish a classification system and assess the efficiency of the proposed approach. The main contribution of this approach is to develop a patent classification system based on patent similarities to assist patent manager in understanding the basic patents for a specific industry, the relationships among categories of technologies and the evolution of a technology category.
  8. Safder, I.; Ali, M.; Aljohani, N.R.; Nawaz, R.; Hassan, S.-U.: Neural machine translation for in-text citation classification (2023) 0.01
    0.008927471 = product of:
      0.017854942 = sum of:
        0.017854942 = product of:
          0.035709884 = sum of:
            0.035709884 = weight(_text_:i in 1053) [ClassicSimilarity], result of:
              0.035709884 = score(doc=1053,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.20836058 = fieldWeight in 1053, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1053)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
  9. Hayer, L.: Lazarsfeld zitiert : eine bibliometrische Analyse (2008) 0.01
    0.00769551 = product of:
      0.01539102 = sum of:
        0.01539102 = product of:
          0.03078204 = sum of:
            0.03078204 = weight(_text_:22 in 1934) [ClassicSimilarity], result of:
              0.03078204 = score(doc=1934,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.19345059 = fieldWeight in 1934, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.0390625 = fieldNorm(doc=1934)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    22. 6.2008 12:54:12
  10. Czepel, R.: ¬Die Geographie der wissenschaftlichen Zitierung (2003) 0.01
    0.0071419775 = product of:
      0.014283955 = sum of:
        0.014283955 = product of:
          0.02856791 = sum of:
            0.02856791 = weight(_text_:i in 2273) [ClassicSimilarity], result of:
              0.02856791 = score(doc=2273,freq=2.0), product of:
                0.17138503 = queryWeight, product of:
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.045439374 = queryNorm
                0.16668847 = fieldWeight in 2273, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.7717297 = idf(docFreq=2765, maxDocs=44218)
                  0.03125 = fieldNorm(doc=2273)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Content
    Top Ten der meistzitierten Forscher nach Institutionen: Harvard - Stanford - UC, San Diego - MIT - National Cancer Institute - UC, San Francisco - Cornell - UC, Berkeley - University College, London - CalTech Top Ten der meistzitierten Forscher nach Ländern:USA - GB - BRD - CND - Japan - F - CH - S - I - AUS - AU
  11. Wildner, B.: Web of Science - Scopus : Auf der Suche nach Zitierungen (2006) 0.01
    0.0061564078 = product of:
      0.0123128155 = sum of:
        0.0123128155 = product of:
          0.024625631 = sum of:
            0.024625631 = weight(_text_:22 in 5034) [ClassicSimilarity], result of:
              0.024625631 = score(doc=5034,freq=2.0), product of:
                0.15912095 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.045439374 = queryNorm
                0.15476047 = fieldWeight in 5034, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.03125 = fieldNorm(doc=5034)
          0.5 = coord(1/2)
      0.5 = coord(1/2)
    
    Date
    4. 6.2006 17:22:15