Search (37 results, page 2 of 2)

  • × theme_ss:"Informetrie"
  • × year_i:[1980 TO 1990}
  1. 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
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  2. Tsay, M.-Y.: ¬A bibliometric study of indexing and abstracting, 1876-1976 (1989) 0.00 
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    Abstract
    In a bibliometric study of references to indexing and abstracting from 1876 to 1976 a total of 2.381 references in Wellisch's Indexing and abstracting: an international bibliography were analysed by a PL/I program. Most of the articles (67%) appeared as journal papers. The Bradford-Zipf law was applied to investigate the journal literature. Thirteen core journals were identified, six of which emphasize the subject of indexing and abstracting. Lotka's law was used to measure the productivity of authors. The vast majority, 1.533 out of 1.966 authors, contributed only one article. The leading authors and their active life in this subject were also studied. English is the predominant language of articles on indexing and abstracting
    Type
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  3. Lancaster, F.W.; Li, J.: ¬The law of constant accessibility of information (1988/89) 0.00 
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  4. Umstätter, W.: Informetrische Hilfe durch das 'intelligente Terminal' (1986) 0.00 
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  5. Henzler, R.G.: Informetrische Auswertungen bei der Online-Retrieval-Praxis (1982) 0.00 
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  6. 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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  7. Stock, W.G.: Informetrische Untersuchungsmethoden auf der Grundlage der Textwortmethode (1984) 0.00 
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  8. Gerdel, W.: Datentechnische Methoden in der Referenzanalyse (1980) 0.00 
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  9. Eisenhardt, O.; Ohly, P.: Quantitative Analyse und Suchstrategien (1981) 0.00 
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  10. Nacke, O.: Zitatenanalyse im engeren Sinne (1980) 0.00 
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  11. Nacke, O.: Fehlerquellen bei der Zitatenanalyse (1980) 0.00 
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  12. Eisenhardt, O.H.: Ergebnisse der Referenzanalyse (1980) 0.00 
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  13. Henzler, R.: Bibliometrische Methoden der Termanalyse (1980) 0.00 
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  14. Wersig, G.: Quantitative Methoden der Benutzerforschung (1981) 0.00 
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  15. Hunter, J.A.: Quantifizierbare Merkmale von Datenbanken (1981) 0.00 
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  16. Fairthorne, R.A.: Bradford's law and perspective (1980) 0.00 
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  17. Umstätter, W.; Rehm, M.; Dorogi, Z.: ¬Die Halbwertszeit in der naturwissenschaftlichen Literatur (1982) 0.00 
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