Search (4 results, page 1 of 1)

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Abstract

Reports on research into the use of new technologies in providing more sophisticated delivery systems where the services of skilled reference librarians are not available. Describes a workstation equipped with a CD-ROM jukebox of reference books and vocabulary control tools on laser discs with keyword access. The user interface will include an expert system to guide users in selecting the types of material and in developing the best search strategy by mapping the terms selected by the users to contolled vocabularies. Searches will be narrowed or broadened as appropriate. The system will also be designed to connect to a full service integrated library network enabling the user to access the on-line card catalogue, check circulation and perform interlibrary loans.

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Source

Classification research for knowledge representation and organization. Proc. 5th Int. Study Conf. on Classification Research, Toronto, Canada, 24.-28.6.1991. Ed. by N.J. Williamson u. M. Hudon

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Abstract

The ILSA prototype was developed using an object-oriented multimedia user interfcae on six NeXT workstations with two databases: the first with 100.000 MARC records and the second with 20.000 additional records enhanced with table of contents data. The items are grouped into subject clusters consisting of the classification number and the first subject heading assigned. Every other distinct keyword in the MARC record is linked to the subject cluster in an automated natural language mapping scheme, which leads the user from the term entered to the controlled vocabulary of the subject clusters in which the term appeared. The use of a hierarchical classification number (Dewey) makes it possible to broaden or narrow a search at will

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Abstract

Describes the interim report of a project aimed at developing an expert system to deal with knowledge representation at the macro level. Once the expert system is operational it is hoped to compare the performance of brute force searching by means of keywords with that of an expert system designed to use minmax search strategies. The report focuses on the technique by which humans organise knowledge. The project was broken down into 4 key modules: diagnostics of information-seeking behaviour; network interface; subject access; graphics interface. The knowledge base includes a whole range of widely varied knowledge representation techniques from permuted keyword lists, and universal classification schemes to alphabetical indexes and specialised encyclopedias