Search (50 results, page 1 of 3)

  • × language_ss:"e"
  • × theme_ss:"OPAC"
  • × type_ss:"a"
  1. Porter, M.; Galpin, V.: Relevance feedback in a public access catalogue for a research library : Muscat at the Scott Polar Research Institute (1988) 0.07
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    Source
    Program. 22(1988), S.1-20
  2. Lam, V.-T.: Enhancing subject access to monographs in Online Public Access Catalogs : table of contents added to bibliographic records (2000) 0.05
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    Date
    22. 9.1997 19:16:05
  3. O'Rourke, V.: Selection of an online public access catalog : a checklist approach (1987) 0.05
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  4. Larson, R.R.; Graham, V.: Monitoring and evaluating MELVYL (1983) 0.05
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  5. Herrero Solana, V.; Moya Anegon, F. de: Bibliographic displays of Web-based OPACs : multivariate analysis applied to Latin-American catalogues (2001) 0.04
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  6. Khoo, C.S.G.; Wan, K.-W.: ¬A simple relevancy-ranking strategy for an interface to Boolean OPACs (2004) 0.03
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    Content
    "Most Web search engines accept natural language queries, perform some kind of fuzzy matching and produce ranked output, displaying first the documents that are most likely to be relevant. On the other hand, most library online public access catalogs (OPACs) an the Web are still Boolean retrieval systems that perform exact matching, and require users to express their search requests precisely in a Boolean search language and to refine their search statements to improve the search results. It is well-documented that users have difficulty searching Boolean OPACs effectively (e.g. Borgman, 1996; Ensor, 1992; Wallace, 1993). One approach to making OPACs easier to use is to develop a natural language search interface that acts as a middleware between the user's Web browser and the OPAC system. The search interface can accept a natural language query from the user and reformulate it as a series of Boolean search statements that are then submitted to the OPAC. The records retrieved by the OPAC are ranked by the search interface before forwarding them to the user's Web browser. The user, then, does not need to interact directly with the Boolean OPAC but with the natural language search interface or search intermediary. The search interface interacts with the OPAC system an the user's behalf. The advantage of this approach is that no modification to the OPAC or library system is required. Furthermore, the search interface can access multiple OPACs, acting as a meta search engine, and integrate search results from various OPACs before sending them to the user. The search interface needs to incorporate a method for converting the user's natural language query into a series of Boolean search statements, and for ranking the OPAC records retrieved. The purpose of this study was to develop a relevancyranking algorithm for a search interface to Boolean OPAC systems. This is part of an on-going effort to develop a knowledge-based search interface to OPACs called the E-Referencer (Khoo et al., 1998, 1999; Poo et al., 2000). E-Referencer v. 2 that has been implemented applies a repertoire of initial search strategies and reformulation strategies to retrieve records from OPACs using the Z39.50 protocol, and also assists users in mapping query keywords to the Library of Congress subject headings."
    Source
    Electronic library. 22(2004) no.2, S.112-120
  7. Walker, S.: Improving subject access painlessly : recent work on the Okapi online catalogue projects (1988) 0.02
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    Source
    Program. 22(1988), S.21-31
  8. Hug, H.; Nöthiger, R.: ETHICS: an online public access catalogue at ETH-Bibliothek, Zürich (1988) 0.02
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    Source
    Program. 22(1988), S.133-142
  9. Marle, G.A.J.S. v.; Skaliks, M.: Some statistics about the searching behaviour of users of the OPAC of the Twente University Library (1994) 0.02
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  10. Beheshti, J.; Large, V.; Bialek, M.: PACE: a browsable graphical interface (1996) 0.02
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  11. Wilson, V.: Catalog users "in the wild" : the potential of an ethnographic approach to studies of library catalogs and their users (2015) 0.02
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  12. Hogan, S.A.: Educating users about catalogues and cataloguing : the impossible dream (1993) 0.02
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    Source
    International cataloguing and bibliographic control. 22(1993) no.2, S.23-26
  13. Walker, S.: ¬The Okapi online catalogue research projects (1989) 0.02
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    Date
    16. 8.1998 11:22:08
  14. Cherry, J.M.; Clinton, M.: ¬An experimental investigation of two types of instruction for OPAC users (1991) 0.01
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    Source
    Canadian journal of information science. 16(1991) no.4, S.2-22
  15. McLachlan, R.W.: Public libraries : shrinking dollars, increased demands; clerical staff and OCLC to the rescue (1991) 0.01
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    Source
    OCLC micro. 7(1991) no.6, S.19-22
  16. Seruga, J.: Object-oriented modeling of a library information system (1997) 0.01
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    Source
    LASIE. 28(1997) no.4, S.22-34
  17. Sandlian, P.: Rethinking the rules (1995) 0.01
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    Source
    School library journal. 41(1995) no.7, S.22-25
  18. Martin, G.: Main entry : the argument for a defence of main entry in the OPAC (1996) 0.01
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    Source
    Cataloguing Australia. 22(1996) nos.1/2, S.21-25
  19. Mischo, W.H.; Lee, J.: End-user searching in bibliographic databases (1987) 0.01
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    Source
    Annual review of information science and technology. 22(1987), S.227-263
  20. Nuttall, H.D.; McAbee, S.L.: Pathfinders on-line : adding pathfinders to a NOTIS on-line system (1997) 0.01
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    Date
    27.11.1995 17:07:22

Years