Search (26 results, page 1 of 2)

  • × year_i:[1960 TO 1970}
  1. Goffman, W.: On relevance as a measure (1964) 0.05 
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    Abstract
    Relevance is defined as a measure of information conveyed by a document relative to a query.It is shown that the relationship between the document and the query, though necessary, is not sufficient to determine relevance
  2. Lesk, M.E.; Salton, G.: Relevance assements and retrieval system evaluation (1969) 0.04 
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    Abstract
    Two widerly used criteria for evaluating the effectiveness of information retrieval systems are, respectively, the recall and the precision. Since the determiniation of these measures is dependent on a distinction between documents which are relevant to a given query and documents which are not relevant to that query, it has sometimes been claimed that an accurate, generally valid evaluation cannot be based on recall and precision measure. A study was made to determine the effect of variations in relevance assesments do not produce significant variations in average recall and precision. It thus appears that properly computed recall and precision data may represent effectiveness indicators which are gemerally valid for many distinct user classes.
  3. Goffman, W.: ¬A searching procedure for information retrieval (1964) 0.03 
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    Abstract
    A search procedure for an information retrieval system is developed whereby the answer to a question is obtained by maximizing an evaluation function of the system's output in terms of the probility of relevance. Necessary and sufficient conditions are given for a set to be an answer to a query. A partition of the file is made in such way that all documents belonging to the answer are members of the same class. Hence the answer can be generated by one relevant document. In this manner a search of the total file is avoided
  4. Goffman, W.: ¬An indirect method of information retrieval (1968) 0.03 
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    Abstract
    The information retrieval process, treated strictly as a matching procedure, has the defects that the whole file must be probed for each query, and that it overlooks the facts that the relevance of the information from one document depends upon what is already known about the subject, and in turn affects the relevance of other documents subsequently examined. A mathematical model of a search technique in which the defects of the direct method are taken into account is demonstrated by an experiment in which a given paper is treated as an enquiry and the references cited in the paper are treated as relevant answers. The results in two tests show much better results than those achieved by the direct method. No spurious material was retrieved by either method
  5. Rübesame, O.: Probleme des geographischen Schlüssels (1963) 0.03 
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    Date
    17. 1.1999 13:22:22
  6. Fill, K.: ¬Die Dezimalklassifikation im allgemeinen und in Deutschland (1967) 0.02 
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    Source
    DK-Mitteilungen. 12(1967) Nr.5, S.19-22
  7. Meyer-Uhlenried, K.H.: Ordnungsprinzipien der Speicherung in der Dokumentation (1965) 0.02 
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    Source
    Nachrichten für Dokumentation. 16(1965), S.18-22
  8. Schön, J.: Zum Gedenken an Paul Otlet : 1868-1944 (1968) 0.02 
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    Source
    DK-Mitteilungen. 13(1968) Nr.6, S.21-22
  9. Mann, G.: ¬Der Systematische Katalog in Institutionsbibliotheken am Beispiel der Medizinhistorik (1962) 0.02 
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    Date
    3.10.2000 10:22:29
  10. Chomsky, N.: Aspects of the theory of syntax (1965) 0.02 
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    Date
    6. 1.1999 10:29:22
  11. Hockett, C.F.: ¬The problem of universals in language (1963) 0.02 
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    Pages
    S. 1-22
  12. Jonzeck, M.: ¬Die Aktivierung, Verbesserung und Neuorientierung der Informationstätigkeit der allgemeinen öffentlichen Bibliotheken (1965) 0.02 
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    Source
    Bibliothekar. 19(1965), S.15-22
  13. Reblin, B.: ¬Die neue "Systematik für Allgemeinbildende Bibliotheken" (1963) 0.02 
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    Date
    5. 8.1999 15:16:22
  14. Coates, E.J.: CRG proposals for a new general classification (1969) 0.01 
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    Pages
    S.19-22
  15. Barden, B.R.; Denison, B.: Guide to the SLA loan collection of classification schemes and subject heading lists on deposit at Western Reserve Univ. as of March 20, 1961 (1961) 0.01 
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    Footnote
    Rez. in: College and research libraries 22(1961) no.6, S.483-484 (A.R. Lindsay)
  16. Cleverdon, C.W.: ASLIB Cranfield Research Project : Report on the first stage of an investigation into the comparative efficiency of indexing systems (1960) 0.01 
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    Footnote
    Rez. in: College and research libraries 22(1961) no.3, S.228 (G. Jahoda)
  17. Gordon, T.J.; Helmer-Hirschberg, O.: Report on a long-range forecasting study (1964) 0.01 
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    Date
    22. 6.2018 13:24:08
    22. 6.2018 13:54:52
  18. Habermas, J.: Technik und Wissenschaft als »Ideologie« (1968) 0.01 
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    Date
    22. 7.2023 20:22:54
  19. Mooers, C.: ¬The indexing language of an information retrieval system (1963) 0.01 
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    Source
    Information retrieval today: papers presented at an Institute conducted by the Library School and the Cetre for Continuation Study, University of Minnesota, Sept. 19-22, 1962. Ed. by. Wesley Simonton
  20. Habermas, J.: Technischer Fortschritt und soziale Lebenswelt (1968) 0.01 
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    Date
    22. 7.2023 20:22:54

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