Recommender systems at the long tail

  • Authors:
  • Neel Sundaresan

  • Affiliations:
  • eBay Research Labs, San Jose, USA

  • Venue:
  • Proceedings of the fifth ACM conference on Recommender systems
  • Year:
  • 2011

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Abstract

Recommender systems form the core of e-commerce systems. In this paper we take a top-down view of recommender systems and identify challenges, opportunities, and approaches in building recommender systems for a marketplace platform. We use eBay as an example where the elaborate interaction offers a number opportunities for creative recommendations. However, eBay also poses complexities resulting from high sparsity of relationships. Our discussion can be generalized beyond eBay to other marketplaces.