Search (21 results, page 1 of 2)

  • × year_i:[1980 TO 1990}
  • × theme_ss:"Informetrie"
  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. Henzler, R.G.: Informetrische Auswertungen bei der Online-Retrieval-Praxis (1982) 0.00
    0.0038566636 = product of:
      0.028924976 = sum of:
        0.022018395 = weight(_text_:und in 3054) [ClassicSimilarity], result of:
          0.022018395 = score(doc=3054,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.34282678 = fieldWeight in 3054, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.109375 = fieldNorm(doc=3054)
        0.00690658 = product of:
          0.01381316 = sum of:
            0.01381316 = weight(_text_:information in 3054) [ClassicSimilarity], result of:
              0.01381316 = score(doc=3054,freq=2.0), product of:
                0.050870337 = queryWeight, product of:
                  1.7554779 = idf(docFreq=20772, maxDocs=44218)
                  0.028978055 = queryNorm
                0.27153665 = fieldWeight in 3054, 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=3054)
          0.5 = coord(1/2)
      0.13333334 = coord(2/15)
    
    Source
    Deutscher Dokumentartag 1981, Mainz, 5.-8.10.1981: Kleincomputer in Information und Dokumentation. Bearb.: H. Strohl-Goebel
  4. Eisenhardt, O.; Ohly, P.: Quantitative Analyse und Suchstrategien (1981) 0.00
    0.0017793552 = product of:
      0.026690327 = sum of:
        0.026690327 = weight(_text_:und in 36) [ClassicSimilarity], result of:
          0.026690327 = score(doc=36,freq=4.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.41556883 = fieldWeight in 36, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.09375 = fieldNorm(doc=36)
      0.06666667 = coord(1/15)
    
    Source
    Deutscher Dokumentartag 1980, Berlin, 29.9.-3.10.1980: IuD und Normung - Neue Kommunikationstechnologie - Berufspolitik - Datenbanken - Betriebsstatistik - Informetrie - Parlamentsdokumentation - Arbeitskreis Senioren - Gesprächskreise. Bearb.: M. von der Laake u. H. Strohl-Goebel
  5. Umstätter, W.: Informetrische Hilfe durch das 'intelligente Terminal' (1986) 0.00
    0.0014678931 = product of:
      0.022018395 = sum of:
        0.022018395 = weight(_text_:und in 501) [ClassicSimilarity], result of:
          0.022018395 = score(doc=501,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.34282678 = fieldWeight in 501, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.109375 = fieldNorm(doc=501)
      0.06666667 = coord(1/15)
    
    Source
    Deutscher Dokumentartag 1986, Freiburg, 8.-10.10.1986: Bedarfsorientierte Fachinformation: Methoden und Techniken am Arbeitsplatz. Bearb.: H. Strohl-Goebel
  6. Wersig, G.: Quantitative Methoden der Benutzerforschung (1981) 0.00
    0.0012581941 = product of:
      0.018872911 = sum of:
        0.018872911 = weight(_text_:und in 414) [ClassicSimilarity], result of:
          0.018872911 = score(doc=414,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.29385152 = fieldWeight in 414, 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=414)
      0.06666667 = coord(1/15)
    
    Source
    Deutscher Dokumentartag 1980, Berlin, 29.9.-3.10.1980: IuD und Normung - Neue Kommunikationstechnologie - Berufspolitik - Datenbanken - Betriebsstatistik - Informetrie - Parlamentsdokumentation - Arbeitskreis Senioren - Gesprächskreise. Bearb.: M. von der Laake u. H. Strohl-Goebel
  7. Hunter, J.A.: Quantifizierbare Merkmale von Datenbanken (1981) 0.00
    0.0012581941 = product of:
      0.018872911 = sum of:
        0.018872911 = weight(_text_:und in 416) [ClassicSimilarity], result of:
          0.018872911 = score(doc=416,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.29385152 = fieldWeight in 416, 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=416)
      0.06666667 = coord(1/15)
    
    Source
    Deutscher Dokumentartag 1980, Berlin, 29.9.-3.10.1980: IuD und Normung - Neue Kommunikationstechnologie - Berufspolitik - Datenbanken - Betriebsstatistik - Informetrie - Parlamentsdokumentation - Arbeitskreis Senioren - Gesprächskreise. Bearb.: M. von der Laake u. H. Strohl-Goebel
  8. 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
  9. Zitatenanalyse und verwandte Verfahren : Vorträge einer öffentlichen Sitzung während der 32. Jahrestagung der Deutschen Gesellschaft für Dokumentation, Oktober 1979 (1980) 0.00
    0.0010484952 = product of:
      0.015727427 = sum of:
        0.015727427 = weight(_text_:und in 417) [ClassicSimilarity], result of:
          0.015727427 = score(doc=417,freq=2.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.24487628 = fieldWeight in 417, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.078125 = fieldNorm(doc=417)
      0.06666667 = coord(1/15)
    
  10. Umstätter, W.; Rehm, M.; Dorogi, Z.: ¬Die Halbwertszeit in der naturwissenschaftlichen Literatur (1982) 0.00
    8.896776E-4 = product of:
      0.013345163 = sum of:
        0.013345163 = weight(_text_:und in 5279) [ClassicSimilarity], result of:
          0.013345163 = score(doc=5279,freq=4.0), product of:
            0.06422601 = queryWeight, product of:
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.028978055 = queryNorm
            0.20778441 = fieldWeight in 5279, product of:
              2.0 = tf(freq=4.0), with freq of:
                4.0 = termFreq=4.0
              2.216367 = idf(docFreq=13101, maxDocs=44218)
              0.046875 = fieldNorm(doc=5279)
      0.06666667 = coord(1/15)
    
    Abstract
    Aus der Benutzung der Universitätsbibliothek Ulm wurde eine Halbwertszeit-Funktion in der naturwissenschaftlichen Literatur von t1/2=5 Jahren bestimmt. Eine interessante Abweichung von dieser Halbwertszeit-Funktion ist bei der Bestellung der neuesten Zeitschriften zu beobachten. Der Grund hierfür liegt vermutlich darin, daß Wissenschaftler das Vierfache an neuester Literatur lesen müssen, um wissenschaftliche Trends zu überschauen. Eine weitere Abweichung ist in der ältesten Literatur festzustellen, bei den sog. 'citation classics'. Übereinstimmung zeigt sich im Zitier- und Kopierverhalten bei Zeitschriftenliteratur, die älter als 2 Jahre ist. Etwa 27% der an die UB Ulm gerichteten Literaturanforderungen betreffen Zeitschriftenaufsätze mit einem Alter von über 10 Jahren, da diese Bestände für die Benutzer nur schwer zugänglich sind. Dies zeigt die große Bedeutung einer Freihand-Bibliothek
    Footnote
    Vgl. auch: Artus, H.M.: 'Halbwertzeit wissenschaftlicher Literatur' - Naturgesetz oder Forschungsartefakt? Zum Forschungsstand der Referenz- und Zitationsanalyse
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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