Search (13 results, page 1 of 1)

  • × language_ss:"e"
  • × theme_ss:"Informetrie"
  • × year_i:[1980 TO 1990}
  1. Nicholls, P.T.: Empirical validation of Lotka's law (1986) 0.01
    0.0052403 = product of:
      0.0786045 = sum of:
        0.0786045 = sum of:
          0.015786469 = weight(_text_:information in 5509) [ClassicSimilarity], result of:
            0.015786469 = score(doc=5509,freq=2.0), product of:
              0.050870337 = queryWeight, product of:
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.028978055 = queryNorm
              0.3103276 = fieldWeight in 5509, 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=5509)
          0.06281803 = weight(_text_:22 in 5509) [ClassicSimilarity], result of:
            0.06281803 = score(doc=5509,freq=2.0), product of:
              0.101476215 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.028978055 = queryNorm
              0.61904186 = fieldWeight in 5509, 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=5509)
      0.06666667 = coord(1/15)
    
    Source
    Information processing and management. 22(1986), S.417-419
  2. Fiala, J.: Information flood : fiction and reality (1987) 0.01
    0.0052403 = product of:
      0.0786045 = sum of:
        0.0786045 = sum of:
          0.015786469 = weight(_text_:information in 1080) [ClassicSimilarity], result of:
            0.015786469 = score(doc=1080,freq=2.0), product of:
              0.050870337 = queryWeight, product of:
                1.7554779 = idf(docFreq=20772, maxDocs=44218)
                0.028978055 = queryNorm
              0.3103276 = fieldWeight in 1080, 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=1080)
          0.06281803 = weight(_text_:22 in 1080) [ClassicSimilarity], result of:
            0.06281803 = score(doc=1080,freq=2.0), product of:
              0.101476215 = queryWeight, product of:
                3.5018296 = idf(docFreq=3622, maxDocs=44218)
                0.028978055 = queryNorm
              0.61904186 = fieldWeight in 1080, 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=1080)
      0.06666667 = coord(1/15)
    
    Source
    Thermochimica acta. 110(1987), S.11-22
  3. Vasiljev, A.: ¬The law of requisite variety as applied to subject indexing and retrieval (1989) 0.00
    0.0012581941 = product of:
      0.018872911 = sum of:
        0.018872911 = weight(_text_:und in 5069) [ClassicSimilarity], result of:
          0.018872911 = score(doc=5069,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.29385152 = fieldWeight in 5069, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.09375 = fieldNorm(doc=5069)
      0.06666667 = coord(1/15)
    
    Source
    Klassifikation und Ordnung. Tagungsband 12. Jahrestagung der Gesellschaft für Klassifikation, Darmstadt 17.-19.3.1988. Hrsg.: R. Wille
  4. Lancaster, F.W.; Li, J.: ¬The law of constant accessibility of information (1988/89) 0.00
    7.975032E-4 = product of:
      0.011962548 = sum of:
        0.011962548 = product of:
          0.023925096 = sum of:
            0.023925096 = weight(_text_:information in 1565) [ClassicSimilarity], result of:
              0.023925096 = score(doc=1565,freq=6.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.47031528 = fieldWeight in 1565, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.109375 = fieldNorm(doc=1565)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Bulletin of the American Society for Information Science. 15(1988/89), S.24-25
    Theme
    Information
  5. Kinnucan, M.T.: Statistical methods in information science research (1986) 0.00
    7.441813E-4 = product of:
      0.011162719 = sum of:
        0.011162719 = product of:
          0.022325438 = sum of:
            0.022325438 = weight(_text_:information in 272) [ClassicSimilarity], result of:
              0.022325438 = score(doc=272,freq=4.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.43886948 = fieldWeight in 272, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.125 = fieldNorm(doc=272)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Annual review of information science and technology. 21(1986), S.147-178
  6. Fairthorne, R.A.: Bradford's law and perspective (1980) 0.00
    5.58136E-4 = product of:
      0.0083720395 = sum of:
        0.0083720395 = product of:
          0.016744079 = sum of:
            0.016744079 = weight(_text_:information in 4992) [ClassicSimilarity], result of:
              0.016744079 = score(doc=4992,freq=4.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.3291521 = fieldWeight in 4992, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.09375 = fieldNorm(doc=4992)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Theory and application of information research. Proc. of the 2nd Int. Research Forum on Information Science, 3.-6.8.1977, Copenhagen. Ed.: O. Harbo u. L. Kajberg
  7. King, J.: ¬A review of bibliometric and other indicators and their role in research evaluation (1987) 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 1708) [ClassicSimilarity], result of:
              0.015786469 = score(doc=1708,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.3103276 = fieldWeight in 1708, 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=1708)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of information science. 13(1987) no.5, S.261-276
  8. Pao, M.L.: ¬An empirical examination of Lotka's law (1986) 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 7520) [ClassicSimilarity], result of:
              0.015786469 = score(doc=7520,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.3103276 = fieldWeight in 7520, 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=7520)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science. 37(1986), S.26-33
  9. White, H.D.; McCain, W.: Bibliometrics (1989) 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 341) [ClassicSimilarity], result of:
              0.015786469 = score(doc=341,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.3103276 = fieldWeight in 341, 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=341)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Annual review of information science and technology. 24(1989), S.119-186
  10. McCain, K.W.: Co-cited author mapping as a valid representation of intellectual structure (1986) 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 5505) [ClassicSimilarity], result of:
              0.01381316 = score(doc=5505,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27153665 = fieldWeight in 5505, 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=5505)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science. 37(1986), S.111-122
  11. Carpenter, M.P.; Narin, F.: ¬The adequacy of Science Citation Index (SCI) as an indicator of international scientific activity (1981) 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 6680) [ClassicSimilarity], result of:
              0.01381316 = score(doc=6680,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27153665 = fieldWeight in 6680, 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=6680)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Source
    Journal of the American Society for Information Science. 32(1981), S.430-439
  12. Rees-Potter, L.K.: Dynamic thesaural systems : a bibliometric study of terminological and conceptual change in sociology and economics with application to the design of dynamic thesaural systems (1989) 0.00
    3.7209064E-4 = product of:
      0.0055813594 = sum of:
        0.0055813594 = product of:
          0.011162719 = sum of:
            0.011162719 = weight(_text_:information in 5059) [ClassicSimilarity], result of:
              0.011162719 = score(doc=5059,freq=4.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.21943474 = fieldWeight in 5059, product of:
                  2.0 = tf(freq=4.0), with freq of:
                    4.0 = termFreq=4.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.0625 = fieldNorm(doc=5059)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Abstract
    Thesauri have been used in the library and information science field to provide a standard descriptor language for indexers or searchers to use in an informations storage and retrieval system. One difficulty has been the maintenance and updating of thesauri since terms used to describe concepts change over time and vary between users. This study investigates a mechanism by which thesauri can be updated and maintained using citation, co-citation analysis and citation context analysis.
    Source
    Information processing and management. 25(1989) no.6, S.677-691
  13. Davies, R.: Q-analysis : a methodology for librarianship and information science (1985) 0.00
    3.4178712E-4 = product of:
      0.0051268064 = sum of:
        0.0051268064 = product of:
          0.010253613 = sum of:
            0.010253613 = weight(_text_:information in 589) [ClassicSimilarity], result of:
              0.010253613 = score(doc=589,freq=6.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.20156369 = fieldWeight in 589, product of:
                  2.4494898 = tf(freq=6.0), with freq of:
                    6.0 = termFreq=6.0
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.046875 = fieldNorm(doc=589)
          0.5 = coord(1/2)
      0.06666667 = coord(1/15)
    
    Abstract
    Q-analysis is a methodology for investigating a wide range of structural phenomena. Strutures are defined in terms of relations between members of sets and their salient features are revealed using techniques of algebraic topology. However, the basic method can be mastered by non-mathematicians. Q-analysis has been applied to problems as diverse as discovering the rules for the diagnosis of a rare disease and the study of tactics in a football match. Other applications include some of interest to librarians and information scientists. In bibliometrics, Q-analysis has proved capable of emulating techniques such as bibliographic coupling, co-citation analysis and co-word analysis. It has also been used to produce a classification scheme for television programmes based on different principles from most bibliographic classifications. This paper introduces the basic ideas of Q-analysis. Applications relevant to librarianship and information science are reviewed and present limitations of the approach described. New theoretical advances including some in other fields such as planning and design theory and artificial intelligence may lead to a still more powerful method of investigating structure