Search (50 results, page 1 of 3)

  • × theme_ss:"Retrievalstudien"
  • × year_i:[1980 TO 1990}
  1. Saracevic, T.: On a method for studying the structure and nature of requests in information retrieval (1983) 0.04 
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    Pages
    S.22-25
    Series
    Proceedings of the American Society for Information Science; vol. 20
    Source
    Productivity in the information age : proceedings of the 46th ASIS annual meeting, 1983. Ed.: Raymond F Vondra
    Type
    a
  2. Hodges, P.R.: Keyword in title indexes : effectiveness of retrieval in computer searches (1983) 0.03 
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    Abstract
    A study was done to test the effectiveness of retrieval using title word searching. It was based on actual search profiles used in the Mechanized Information Center at Ohio State University, in order ro replicate as closely as possible actual searching conditions. Fewer than 50% of the relevant titles were retrieved by keywords in titles. The low rate of retrieval can be attributes to three sources: titles themselves, user and information specialist ignorance of the subject vocabulary in use, and to general language problems. Across fields it was found that the social sciences had the best retrieval rate, with science having the next best, and arts and humanities the lowest. Ways to enhance and supplement keyword in title searching on the computer and in printed indexes are discussed.
    Date
    14. 3.1996 13:22:21
    Type
    a
  3. Sievert, M.E.; McKinin, E.J.: Why full-text misses some relevant documents : an analysis of documents not retrieved by CCML or MEDIS (1989) 0.02 
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    Abstract
    Searches conducted as part of the MEDLINE/Full-Text Research Project revealed that the full-text data bases of clinical medical journal articles (CCML (Comprehensive Core Medical Library) from BRS Information Technologies, and MEDIS from Mead Data Central) did not retrieve all the relevant citations. An analysis of the data indicated that 204 relevant citations were retrieved only by MEDLINE. A comparison of the strategies used on the full-text data bases with the text of the articles of these 204 citations revealed that 2 reasons contributed to these failure. The searcher often constructed a restrictive strategy which resulted in the loss of relevant documents; and as in other kinds of retrieval, the problems of natural language caused the loss of relevant documents.
    Date
    9. 1.1996 10:22:31
    Imprint
    Medford, New Jersey : Learned Information
    Source
    ASIS'89. Managing information and technology. Proceedings of the 52nd annual meeting of the American Society for Information Science, Washington D.C., 30.10.-2.11.1989. Vol.26. Ed.by J. Katzer and G.B. Newby
  4. Fuhr, N.; Niewelt, B.: ¬Ein Retrievaltest mit automatisch indexierten Dokumenten (1984) 0.02 
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    Date
    20.10.2000 12:22:23
    Type
    a
  5. Robertson, S.E.: ¬The methodology of information retrieval experiment (1981) 0.01 
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    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
    Type
    a
  6. Belkin, N.J.: Ineffable concepts in information retrieval (1981) 0.01 
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    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
    Type
    a
  7. Tague, J.M.: ¬The pragmatics of information retrieval experimentation (1981) 0.01 
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    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
    Type
    a
  8. Bernstein, L.M.; Williamson, R.E.: Testing of a natural language retrieval system for a full text knowledge base (1984) 0.01 
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    Source
    Journal of the American Society for Information Science. 35(1984), S.235-247
    Type
    a
  9. Lancaster, F.W.: Evaluation within the environment of an operating information service (1981) 0.01 
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    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
    Type
    a
  10. Feng, S.: ¬A comparative study of indexing languages in single and multidatabase searching (1989) 0.01 
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    Abstract
    An experiment was conducted using 3 data bases in library and information science - Library and Information Science Abstracts (LISA), Information Science Abstracts and ERIC - to investigate some of the main factors affecting on-line searching: effectiveness of search vocabularies, combinations of fields searched, and overlaps among databases. Natural language, controlled vocabulary and a mixture of natural language and controlled terms were tested using different fields of bibliographic records. Also discusses a comparative evaluation of single and multi-data base searching, measuring the overlap among data bases and their influence upon on-line searching.
    Source
    Canadian Journal of Information Science. 14(1989) no.2, S.26-46
    Type
    a
  11. Rijsbergen, C.J. van: Retrieval effectiveness (1981) 0.01 
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    Source
    Information retrieval experiment. Ed.: K. Sparck Jones
    Type
    a
  12. Barraclough, E.D.: Opportunities for testing with online systems (1981) 0.01 
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    Information retrieval experiment. Ed.: K. Sparck Jones
    Type
    a
  13. Keen, E.M.: Laboratory tests of manual systems (1981) 0.01 
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    Information retrieval experiment. Ed.: K. Sparck Jones
    Type
    a
  14. Oddy, R.N.: Laboratory tests : automatic systems (1981) 0.01 
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    Information retrieval experiment. Ed.: K. Sparck Jones
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  15. Heine, M.D.: Simulation, and simulation experiments (1981) 0.01 
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    Information retrieval experiment. Ed.: K. Sparck Jones
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  16. Cooper, W.S.: Gedanken experimentation : an alternative to traditional system testing? (1981) 0.01 
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    Information retrieval experiment. Ed.: K. Sparck Jones
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  17. Sparck Jones, K.: Retrieval system tests 1958-1978 (1981) 0.01 
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    Information retrieval experiment. Ed.: K. Sparck Jones
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  18. Sparck Jones, K.: ¬The Cranfield tests (1981) 0.01 
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    Information retrieval experiments. Ed.: K. Sparck Jones
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  19. Evans, L.: ¬An experiment : search strategy variations in SDI (1981) 0.01 
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  20. Kilgour, F.G.: Retrieval on information from computerized book texts (1989) 0.01 
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    Academic librarianship past, present, and future. A festschrift in honor of David Kaser: Ed. by J. Richardson u. J.Y. Davis
    Type
    a

Authors

Languages

  • e 45
  • d 3
  • nl 2
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Types

  • a 44
  • s 5
  • r 1
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Themes