USING DISCOURSE ANALYSIS F R T E DESIGN O O H F INFORMATION RETRIEVAL INTERACTION M C A I M E H NS S H.M. Brooks Central Information Services University of London N.J. Belkin Centre for Information Science The City University, London Introduction Information retrieval (IR) systems may, in general, be considered as consisting of a user, an interactive mechanism, and a knowledge resource, integrated about the common goal of helping the user successfully to manage the problem that has induced her/him to i n i t i a t e the system. (consisting usually of In these terms, what are called "on-line a human intermediary, IR systems" can be seen as an information interaction mechanism some i n t e r a c t i o n capabilities between intermediary and data base, a retrieval language and a retrieval strategy), and a knowledge resource (meaning the data base i t s e l f ) . intermediary. Marcus & Reintjes(1981), Doszcocs & Rapp(1979), Meadow et al each (1982), Boguraev & Sparck Jones (1982) and Williams(1980) A major goal of IR research at the moment is to allow the user direct access to the data base, without recourse
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