Search (2 results, page 1 of 1)

  • × author_ss:"Poo, D.C.C."
  • × author_ss:"Khoo, C.S.G."
  1. Khoo, C.S.G.; Poo, D.C.C.: ¬An expert system approach to online catalog subject searching (1994) 0.03 
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    Abstract
    The various ways of improving the online catalog for subject searching are reviewed. The paper then discusses the expert system approach to developing a subject search front-end. It is suggested that an effective expert front-end can be developed by focusing on search strategies. A design for a rule-based expert system front-end is described. Possible search strategies and selection rules are illustrated. The inference structure of the system is based on Clancey's model of heuristic classification
  2. Poo, D.C.C.; Khoo, C.S.G.: Online Catalog Subject Searching (2009) 0.01 
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    Abstract
    The Online Public Access Catalog (OPAC) is an information retrieval system characterized by short bibliographic records, mainly of books, journals, and audiovisual materials available in a particular library. This, coupled with a Boolean search interface and a heterogeneous user population with diverse needs, presents special problems for subject searching by end users. To perform effective subject searching in the OPAC system requires a wide range of knowledge and skills. Various approaches to improving the OPAC design for subject searching have been proposed and are reviewed in this entry. The trend toward Web-based OPAC interfaces and the developments in Internet and digital library technologies present fresh opportunities for enhancing the effectiveness of the OPAC system for subject searching.

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