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  • × author_ss:"Craven, T.C."
  • × year_i:[1980 TO 1990}
  1. Craven, T.C.: Research in document classification and indexing (Canada) 1971-1980 (1981) 0.00 
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  2. Craven, T.C.: Customized extracts based on Boolean queries and sentence dependency structures (1989) 0.00 
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    Abstract
    A method is described for using Boolean queries in automatically deriving customized extracts from a text in which semantic dependencies between sentences have been coded. Each sentence in the structured text is treated as defining a separate extract. This extract consists of the sentence and all other sentences on which the sentence is directly or indirectly dependent for its meaning. Extracts from a text that satisfy a given Boolean query are merged to eliminate duplicate sentences. A prototype implementation of the method has been developed within an experimental text structure management system (TEXNET)
  3. Craven, T.C.: Adapting of string indexing systems for retrieval using proximity operators (1988) 0.00 
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    Abstract
    This article explores the idea of using a conventional string indexing source description, together with a special phrase generator, to generate multiple descriptor phrases for inclusion in a database record for online retrieval. For use with proximity operators, these multiple descriptor phrases should attempt to meet such objectives as bringing together groups of syntactically related words. Software for generating multiple descriptor phrases from source descriptions in a specific existing string indexing system is briefly described

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