Search (2 results, page 1 of 1)

  • × theme_ss:"OPAC"
  • × theme_ss:"Informationsdienstleistungen"
  1. Meghabghab, G.V.; Meghabghab, D.B.: INN: an intelligent negotiating neural network for information systems : a design model (1994) 0.05 
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    Abstract
    Research on the use of online catalogues reveals that information retrieval by subject is the most common form, but the least successful. Most problems are attributed to users' search terms, which are either to broad or too specific. Presents an Intelligent Negotiating Neural Network (INN) design model for solving this aspect of online catalogues. The network is designed to act as as electronic information specialist capable of learning to negotiate a user's query and translate it into a true, well formulate statement prior to accessing an online catalogue. The network's architecture includes 4 dimensions: conceptual graphs for queries, inheritance and recognition, knowledge base, and modules. This architecture corresponds to four elements of the traditional query negotiation interview performed by information specialists. These are: query/concept; types of sources/answer-providing tools; types of literature; and time frame. 3 different sessions of the user interface are presented: negotiation of a broadly stae query; negotiation of a norrowly stae query; and negotiation of a query for which concepts are nonexistent in the knowledge base
  2. Thompson, D.M.: Online public access catalogs and user instruction (1994) 0.01 
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    Abstract
    Reports the results of a questionnaire survey of 414 libraries in 4 categories: academic libraries; school libraries; public libraries and special libraries; to assess the status of library training initiatives with respect to the libraries' OPACs. Answers were sought to 3 questions: how have libraries modifoed OPAC software; have libraries developed any instructional methods for teaching the use of OPACs; and to what extent are online catalogues self instructional? Results show that most participants' libraries have modofied library OPAC software; librarians continue to teach use of the online catalogue, depending heavily on handouts; few systems have built-in tutorials for users; and very fes have developed computer assisted instruction for the OPAC

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