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  • × author_ss:"Fidel, R."
  • × language_ss:"e"
  1. Fidel, R.: Thesaurus requirements for an intermediary expert system (1992) 0.03 
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    Abstract
    Direct observations and analysis of searching behaviour of professional online searchers shed light on thesaurus requirements for an intermediary expert system - a system that mediates between online databases and end users. Examination of searchers' decisions about the selection of search keys, and of the knowledge about terminological and subject properties that are employed, illuminated the requirements for a thesaurus that will facilitate the selection of search keys. Expert knowledge is needed when: a term occurs very frequently in the database; it has many synonyms; it is ambiguous; it is vague; or its meaning is context dependent. To diagnose such terms and to give advice, a thesaurus would be used together with a variety of text sources such as databases' thesauri, machine-readable dictionaries and glossaries and the databases' text. The thesaurus would be a knowledge structure that indicates frequency data, hedges, and a classificatory structure; both intellectual and automated procedures would be used to create it. Such a knowledge structure in place would require a new approach to text analysis and to the construction of controlled vocabularies
  2. Fidel, R.: ¬The user-centered approach (2000) 0.01 
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    Date
    22. 9.1997 19:16:05
  3. Fidel, R.; Crandall, M.: ¬The role of subject access in information filtering (1998) 0.01 
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    Date
    22. 9.1997 19:16:05

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