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Query Processing in a Heterogeneous Retrieval Network

Report ID:
April 1988
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The concept of a large-scale information retrieval network incorporating heterogeneous retrieval systems and users is introduced, and the necessary components for enabling term-based searching of any database by untrained end-users are outlined. We define a normal form for expression of queries, show that such queries can be automatically produced, if necessary, from a natural-language request for information, and give algorithms for translating such queries, with little or no loss of expressiveness, into equivalent queries
on both Boolean and term-vector type retrieval systems. We conclude with a proposal for extending this approach to arbitrary database models.

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