Search (23 results, page 1 of 2)

  • × language_ss:"e"
  • × theme_ss:"Citation indexing"
  • × theme_ss:"Informetrie"
  1. McCain, K.W.: Co-cited author mapping as a valid representation of intellectual structure (1986) 0.04
    0.042874087 = product of:
      0.3001186 = sum of:
        0.3001186 = weight(_text_:k.w in 5505) [ClassicSimilarity], result of:
          0.3001186 = score(doc=5505,freq=2.0), product of:
            0.2619697 = queryWeight, product of:
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.035370585 = queryNorm
            1.1456233 = fieldWeight in 5505, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.109375 = fieldNorm(doc=5505)
      0.14285715 = coord(1/7)
    
  2. Nicolaisen, J.: Citation analysis (2007) 0.03
    0.02899087 = product of:
      0.10146804 = sum of:
        0.06313023 = weight(_text_:j in 6091) [ClassicSimilarity], result of:
          0.06313023 = score(doc=6091,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = 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)
        0.038337808 = product of:
          0.076675616 = sum of:
            0.076675616 = weight(_text_:22 in 6091) [ClassicSimilarity], result of:
              0.076675616 = score(doc=6091,freq=2.0), product of:
                0.12386176 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.035370585 = 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)
      0.2857143 = coord(2/7)
    
    Date
    13. 7.2008 19:53:22
  3. White, H.D.; McCain, K.W.: Visualizing a discipline : an author co-citation analysis of information science, 1972-1995 (1998) 0.02
    0.02449948 = product of:
      0.17149635 = sum of:
        0.17149635 = weight(_text_:k.w in 5020) [ClassicSimilarity], result of:
          0.17149635 = score(doc=5020,freq=2.0), product of:
            0.2619697 = queryWeight, product of:
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.035370585 = queryNorm
            0.6546419 = fieldWeight in 5020, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.0625 = fieldNorm(doc=5020)
      0.14285715 = coord(1/7)
    
  4. Boyack, K.W.; Small, H.; Klavans, R.: Improving the accuracy of co-citation clustering using full text (2013) 0.02
    0.01837461 = product of:
      0.12862226 = sum of:
        0.12862226 = weight(_text_:k.w in 1036) [ClassicSimilarity], result of:
          0.12862226 = score(doc=1036,freq=2.0), product of:
            0.2619697 = queryWeight, product of:
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.035370585 = queryNorm
            0.49098146 = fieldWeight in 1036, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.046875 = fieldNorm(doc=1036)
      0.14285715 = coord(1/7)
    
  5. Marion, L.S.; McCain, K.W.: Contrasting views of software engineering journals : author cocitation choices and indexer vocabulary assignments (2001) 0.02
    0.015312173 = product of:
      0.10718521 = sum of:
        0.10718521 = weight(_text_:k.w in 5767) [ClassicSimilarity], result of:
          0.10718521 = score(doc=5767,freq=2.0), product of:
            0.2619697 = queryWeight, product of:
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.035370585 = queryNorm
            0.4091512 = fieldWeight in 5767, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              7.406428 = idf(docFreq=72, maxDocs=44218)
              0.0390625 = fieldNorm(doc=5767)
      0.14285715 = coord(1/7)
    
  6. Mingers, J.; Burrell, Q.L.: Modeling citation behavior in Management Science journals (2006) 0.01
    0.010871577 = product of:
      0.038050517 = sum of:
        0.023673838 = weight(_text_:j in 994) [ClassicSimilarity], result of:
          0.023673838 = score(doc=994,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = 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)
        0.014376678 = product of:
          0.028753355 = sum of:
            0.028753355 = weight(_text_:22 in 994) [ClassicSimilarity], result of:
              0.028753355 = score(doc=994,freq=2.0), product of:
                0.12386176 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.035370585 = 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)
      0.2857143 = coord(2/7)
    
    Date
    26.12.2007 19:22:05
  7. De Bellis, N.: Bibliometrics and citation analysis : from the Science citation index to cybermetrics (2008) 0.01
    0.009297967 = product of:
      0.032542884 = sum of:
        0.016760327 = weight(_text_:u in 3585) [ClassicSimilarity], result of:
          0.016760327 = score(doc=3585,freq=2.0), product of:
            0.11581901 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.035370585 = 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)
        0.015782557 = weight(_text_:j in 3585) [ClassicSimilarity], result of:
          0.015782557 = score(doc=3585,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = 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)
      0.2857143 = coord(2/7)
    
    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."
  8. Chan, H.C.; Kim, H.-W.; Tan, W.C.: Information systems citation patterns from International Conference on Information Systems articles (2006) 0.01
    0.008972077 = product of:
      0.031402268 = sum of:
        0.01702559 = product of:
          0.03405118 = sum of:
            0.03405118 = weight(_text_:w in 201) [ClassicSimilarity], result of:
              0.03405118 = score(doc=201,freq=2.0), product of:
                0.13479044 = queryWeight, product of:
                  3.8108058 = idf(docFreq=2659, maxDocs=44218)
                  0.035370585 = queryNorm
                0.2526231 = fieldWeight in 201, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.8108058 = idf(docFreq=2659, maxDocs=44218)
                  0.046875 = fieldNorm(doc=201)
          0.5 = coord(1/2)
        0.014376678 = product of:
          0.028753355 = sum of:
            0.028753355 = weight(_text_:22 in 201) [ClassicSimilarity], result of:
              0.028753355 = score(doc=201,freq=2.0), product of:
                0.12386176 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.035370585 = 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)
      0.2857143 = coord(2/7)
    
    Date
    3. 1.2007 17:22:03
  9. ¬The Web of knowledge : Festschrift in honor of Eugene Garfield (2000) 0.01
    0.0084652435 = product of:
      0.0592567 = sum of:
        0.0592567 = weight(_text_:u in 461) [ClassicSimilarity], result of:
          0.0592567 = score(doc=461,freq=4.0), product of:
            0.11581901 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.035370585 = 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)
      0.14285715 = coord(1/7)
    
    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)
  10. Nicolaisen, J.: ¬The J-shaped distribution of citedness (2002) 0.01
    0.007810341 = product of:
      0.054672386 = sum of:
        0.054672386 = weight(_text_:j in 3765) [ClassicSimilarity], result of:
          0.054672386 = score(doc=3765,freq=6.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = 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)
      0.14285715 = coord(1/7)
    
    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.
  11. Pudovkin, A.I.; Garfield, E.: Algorithmic procedure for finding semantically related journals (2002) 0.00
    0.004881463 = product of:
      0.03417024 = sum of:
        0.03417024 = weight(_text_:j in 5220) [ClassicSimilarity], result of:
          0.03417024 = score(doc=5220,freq=6.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = 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)
      0.14285715 = coord(1/7)
    
    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.
  12. Van der Veer Martens, B.: Do citation systems represent theories of truth? (2001) 0.00
    0.0048408792 = product of:
      0.033886153 = sum of:
        0.033886153 = product of:
          0.06777231 = sum of:
            0.06777231 = weight(_text_:22 in 3925) [ClassicSimilarity], result of:
              0.06777231 = score(doc=3925,freq=4.0), product of:
                0.12386176 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.035370585 = 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)
      0.14285715 = coord(1/7)
    
    Date
    22. 7.2006 15:22:28
  13. Feitelson, D.G.; Yovel, U.: Predictive ranking of computer scientists using CiteSeer data (2004) 0.00
    0.0041900817 = product of:
      0.02933057 = sum of:
        0.02933057 = weight(_text_:u in 1259) [ClassicSimilarity], result of:
          0.02933057 = score(doc=1259,freq=2.0), product of:
            0.11581901 = queryWeight, product of:
              3.2744443 = idf(docFreq=4547, maxDocs=44218)
              0.035370585 = 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)
      0.14285715 = coord(1/7)
    
  14. Jacobs, N.; Woodfield, J.; Morris, A.: Using local citation data to relate the use of journal articles by academic researchers to the coverage of full-text document access systems (2000) 0.00
    0.003381977 = product of:
      0.023673838 = sum of:
        0.023673838 = weight(_text_:j in 4541) [ClassicSimilarity], result of:
          0.023673838 = score(doc=4541,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = queryNorm
            0.21064025 = fieldWeight in 4541, 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=4541)
      0.14285715 = coord(1/7)
    
  15. Leydesdorff, L.; Bihui, J.: Mapping the Chinese Science Citation Database in terms of aggregated journal-journal citation relations (2005) 0.00
    0.003381977 = product of:
      0.023673838 = sum of:
        0.023673838 = weight(_text_:j in 4813) [ClassicSimilarity], result of:
          0.023673838 = score(doc=4813,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = queryNorm
            0.21064025 = fieldWeight in 4813, 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=4813)
      0.14285715 = coord(1/7)
    
  16. Lin, X.; White, H.D.; Buzydlowski, J.: Real-time author co-citation mapping for online searching (2003) 0.00
    0.003381977 = product of:
      0.023673838 = sum of:
        0.023673838 = weight(_text_:j in 1080) [ClassicSimilarity], result of:
          0.023673838 = score(doc=1080,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = queryNorm
            0.21064025 = fieldWeight in 1080, 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=1080)
      0.14285715 = coord(1/7)
    
  17. Ardanuy, J.: Sixty years of citation analysis studies in the humanities (1951-2010) (2013) 0.00
    0.003381977 = product of:
      0.023673838 = sum of:
        0.023673838 = weight(_text_:j in 1015) [ClassicSimilarity], result of:
          0.023673838 = score(doc=1015,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = queryNorm
            0.21064025 = fieldWeight in 1015, 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=1015)
      0.14285715 = coord(1/7)
    
  18. Larivière, V.; Gingras, Y.; Archambault, E.: ¬The decline in the concentration of citations, 1900-2007 (2009) 0.00
    0.0029045278 = product of:
      0.020331694 = sum of:
        0.020331694 = product of:
          0.040663388 = sum of:
            0.040663388 = weight(_text_:22 in 2763) [ClassicSimilarity], result of:
              0.040663388 = score(doc=2763,freq=4.0), product of:
                0.12386176 = queryWeight, product of:
                  3.5018296 = idf(docFreq=3622, maxDocs=44218)
                  0.035370585 = 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)
      0.14285715 = coord(1/7)
    
    Date
    22. 3.2009 19:22:35
  19. Braun, T.; Glanzel, W.; Grupp, H.: ¬The scientometric weight of 50 nations in 27 scientific areas, 1989-1993 : Pt.1: All fields combined, mathematics, engineering, chemistry and physics (1995) 0.00
    0.0028375986 = product of:
      0.019863188 = sum of:
        0.019863188 = product of:
          0.039726377 = sum of:
            0.039726377 = weight(_text_:w in 761) [ClassicSimilarity], result of:
              0.039726377 = score(doc=761,freq=2.0), product of:
                0.13479044 = queryWeight, product of:
                  3.8108058 = idf(docFreq=2659, maxDocs=44218)
                  0.035370585 = queryNorm
                0.29472697 = fieldWeight in 761, product of:
                  1.4142135 = tf(freq=2.0), with freq of:
                    2.0 = termFreq=2.0
                  3.8108058 = idf(docFreq=2659, maxDocs=44218)
                  0.0546875 = fieldNorm(doc=761)
          0.5 = coord(1/2)
      0.14285715 = coord(1/7)
    
  20. Thelwall, M.; Kousha, K.; Stuart, E.; Makita, M.; Abdoli, M.; Wilson, P.; Levitt, J.: In which fields are citations indicators of research quality? (2023) 0.00
    0.002818314 = product of:
      0.019728197 = sum of:
        0.019728197 = weight(_text_:j in 1033) [ClassicSimilarity], result of:
          0.019728197 = score(doc=1033,freq=2.0), product of:
            0.11238991 = queryWeight, product of:
              3.1774964 = idf(docFreq=5010, maxDocs=44218)
              0.035370585 = queryNorm
            0.17553353 = fieldWeight in 1033, 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=1033)
      0.14285715 = coord(1/7)