Multidimensional Recommender Systems: A Data Warehousing Approach

  • Authors:
  • Gediminas Adomavicius;Alexander Tuzhilin

  • Affiliations:
  • -;-

  • Venue:
  • WELCOM '01 Proceedings of the Second International Workshop on Electronic Commerce
  • Year:
  • 2001

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Abstract

In this paper, we present a new data-warehousing-based approach to recommender systems. In particular, we propose to extend traditional two-dimensional user/item recommender systems to support multiple dimensions, as well as comprehensive profiling and hierarchical aggregation (OLAP) capabilities. We also introduce a new recommendation query language RQL that can express complex recommendations taking into account the proposed extensions. We describe how these extensions are integrated into a framework that facilitates more flexible and comprehensive user interactions with recommender systems.