Search (10 results, page 1 of 1)

  • × theme_ss:"Verbale Doksprachen im Online-Retrieval"
  1. Cousins, S.A.: Enhancing subject access to OPACs : controlled vocabulary vs. natural language (1992) 0.05 
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    Abstract
    Experimental evidence suggests that enhancing the subject content of OPAC records can improve retrieval performance. This is based on the use of natural language index terms derived from the table of contents and back-of-the-book index of documents. The research reported here investigates the alternative approach of translating these natural language terms into controlled vocabulary. Subject queries were collected by interview at the catalogue, and indexing of the queries demonstrated the impressive ability of PRECIS, and to a lesser extent LCSH, to represent users' information needs. DDC performed poorly in this respect. The assumption was made that an index language adequately specific to represent users' queries should be adequate to represent document contents. Searches were carried out on three test databases, and both natural language and PRECIS enhancement of MARC records increased the number of relevant documents found, with PRECIS showing the better performance. However, with weak stemming the advantage of PRECIS was lost. Consideration must also be given to the potential advantages of controlled vocabulary, over and above basic retrieval performance measures
  2. Lambert, N.: Of thesauri and computers : reflections on the need for thesauri (1995) 0.01 
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    Source
    Searcher. 3(1995) no.8, S.18-22
  3. Stone, A.T.: Up-ending Cutter's pyramid : the case for making subject references to broader terms (1996) 0.01 
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    Date
    22. 4.1997 20:43:23
  4. Chan, L.M.; Hodges, T.: Entering the millennium : a new century for LCSH (2000) 0.01 
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    Date
    27. 5.2001 16:22:21
  5. Frommeyer, J.: Chronological terms and period subdivisions in LCSH, RAMEAU, and RSWK : development of an integrative model for time retrieval across various online catalogs (2004) 0.01 
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    Date
    10. 9.2000 17:38:22
  6. Leissing, U.; Rädler, K.; Hauer, M.: Query-Expansion durch Fachthesauri : Erfahrungsbericht zu dandelon.com, Vorarlberger Parlamentsinformationssystem und vorarlberg.at (2010) 0.01 
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    Source
    Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly
  7. Anderson, J.D.; Pérez-Carballo, J.: Library of Congress Subject Headings (LCSH) (2009) 0.01 
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    Date
    27. 8.2011 14:22:13
  8. Milstead, J.L.: Thesauri in a full-text world (1998) 0.01 
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    Date
    22. 9.1997 19:16:05
  9. Wiesenmüller, H.: Verbale Erschließung in Katalogen und Discovery-Systemen : Überlegungen zur Qualität (2021) 0.01 
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    Date
    24. 9.2021 12:22:02
  10. Geißelmann, F. (Hrsg.): Sacherschließung in Online-Katalogen (1994) 0.01 
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    Date
    15. 7.2018 16:22:16
    Footnote
    Rez. in: Mitteilungen VÖB 48(1995) H.1, S.66-68 (K. Niedermair) - Vgl. auch Lepsky, K. in: Bibliotheksdienst 29(1995) H.3, S.500-519; Bibliothek: Forschung u. Praxis 19(1995) H.2, S.251-254 (G. Hartwieg; auch in: LDV-Forum Bd. 12, Nr. 2, Jg. 1995, S.22-29 [unter: http://www.jlcl.org/1995_Heft2/Rezensionen_19-27.pdf]) .

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