A mathematical model of a weighted boolean retrieval system |
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| Authors: | WG Waller Donald H Kraft |
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| Institution: | Department of Computer Science, Louisiana State University, Baton Rouge, LA 70803, U.S.A. |
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| Abstract: | The use of weights to denote a query representation and/or the indexing of a document is analysed as a generalization of a Boolean retrieval system. Criteria are given for the functions used to evaluate the relevance of the records to a specific query, including self-consistency. Various mechanisms suggested in the literature for evaluating the relevance of records with regard to a given query are tested and found to be less than satisfactory. A new approach is suggested to avoid some of the perils of a weighted Boolean retrieval system. |
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