Faceted Preference Matching in Recommender Systems

  • Authors:
  • Fred N. Loney

  • Affiliations:
  • -

  • Venue:
  • EC-Web 2001 Proceedings of the Second International Conference on Electronic Commerce and Web Technologies
  • Year:
  • 2001

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Abstract

A recommender system assists customers in product selection by matching client preferences to suitable items. This paper describes a preference matching technique for products categorized by a faceted feature classification scheme. Individual ratings of features and products are used to identify a customer's predictive neighborhood. A recommendation is obtained by an inferred ranking of candidate products drawn from the neighborhood. The technique addresses the problem of sparse customer activity databases characteristic of e-commerce. Product search is conducted in a controlled, effective manner based on customer similarity. The inference mechanism evaluates the probabilty that a candidate product satisfies a customer query. The inference algorithm is presented and illustrated by a practical example.