A decision theoretic approach to information retrieval

  • Authors:
  • James C. Moore;William B. Richmond;Andrew B. Whinston

  • Affiliations:
  • Purdue Univ., West Lafayette, IN;Univ. of Rochester, Rochester, NY;Univ. of Texas, Austin

  • Venue:
  • ACM Transactions on Database Systems (TODS)
  • Year:
  • 1990

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Abstract

We present the file search problem in a decision-theoretic framework, and discuss a variation of it that we call the common index problem. The goal of the common index problem is to return the best available record in the file, where best is in terms of a class of user preferences. We use dynamic programming to construct an optimal algorithm using two different optimality criteria, and we develop sufficient conditions for obtaining complete information.