Learning What People (Don't) Want

  • Authors:
  • Thomas Hofmann

  • Affiliations:
  • -

  • Venue:
  • EMCL '01 Proceedings of the 12th European Conference on Machine Learning
  • Year:
  • 2001

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Abstract

Recommender systems make use of a database of user ratings to generate personalized recommendations and help people to find relevant products, items, or documents. In this paper, we present a probabilistic, model-based framework for user ratings based on a novel collaborative filtering technique that performs an automatic decomposition of user preferences. Our approach has several benefits, including highly accurate predictions, task-optimized model learning, mining of interest groups and patterns, as well as a highly efficient and scalable computation of predictions and recommendation lists.