Search (16 results, page 1 of 1)

  • × year_i:[1980 TO 1990}
  • × theme_ss:"Informetrie"
  1. Henzler, R.G.: Informetrische Auswertungen bei der Online-Retrieval-Praxis (1982) 0.01 
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    Source
    Deutscher Dokumentartag 1981, Mainz, 5.-8.10.1981: Kleincomputer in Information und Dokumentation. Bearb.: H. Strohl-Goebel
  2. Davies, R.: Q-analysis : a methodology for librarianship and information science (1985) 0.01 
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    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
  3. Nicholls, P.T.: Empirical validation of Lotka's law (1986) 0.01 
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    Source
    Information processing and management. 22(1986), S.417-419
  4. Fiala, J.: Information flood : fiction and reality (1987) 0.01 
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    Source
    Thermochimica acta. 110(1987), S.11-22
  5. 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) 0.01 
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    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
  6. Stock, W.G.: ¬Die Wichtigkeit wissenschaftlicher Dokumente relativ zu gegebenen Thematiken (1981) 0.00 
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    Abstract
    Scientific documents are more or less important in relation to give subjects and this importance can be measured. An empirical investigation into philosophical information was carried out using a weighting algorithm developed by N. Henrichs which results in a distribution by weighting of documents on an average philosophical subject. With the aid of statistical methods a threshold value can be obtained that separates the important and unimportant documents on a subject. The knowledge of theis threshold value is important for various practical and theoretic questions: providing new possibilities for research strategy in information retrieval; evaluation of the 'titleworthiness' of subjects by comparison of document titles and themes for which the document at hand is important; and making available data on thematic trends for scientific results
  7. Vasiljev, A.: ¬The law of requisite variety as applied to subject indexing and retrieval (1989) 0.00 
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  8. Umstätter, W.; Rehm, M.; Dorogi, Z.: ¬Die Halbwertszeit in der naturwissenschaftlichen Literatur (1982) 0.00 
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    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
  9. Lancaster, F.W.; Li, J.: ¬The law of constant accessibility of information (1988/89) 0.00 
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    Source
    Bulletin of the American Society for Information Science. 15(1988/89), S.24-25
    Theme
    Information
  10. Kinnucan, M.T.: Statistical methods in information science research (1986) 0.00 
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    Source
    Annual review of information science and technology. 21(1986), S.147-178
  11. Fairthorne, R.A.: Bradford's law and perspective (1980) 0.00 
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    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
  12. King, J.: ¬A review of bibliometric and other indicators and their role in research evaluation (1987) 0.00 
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    Source
    Journal of information science. 13(1987) no.5, S.261-276
  13. Pao, M.L.: ¬An empirical examination of Lotka's law (1986) 0.00 
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    Source
    Journal of the American Society for Information Science. 37(1986), S.26-33
  14. White, H.D.; McCain, W.: Bibliometrics (1989) 0.00 
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    Annual review of information science and technology. 24(1989), S.119-186
  15. McCain, K.W.: Co-cited author mapping as a valid representation of intellectual structure (1986) 0.00 
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    Source
    Journal of the American Society for Information Science. 37(1986), S.111-122
  16. Carpenter, M.P.; Narin, F.: ¬The adequacy of Science Citation Index (SCI) as an indicator of international scientific activity (1981) 0.00 
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    Source
    Journal of the American Society for Information Science. 32(1981), S.430-439

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