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Recommendation in heterogeneous information networks with implicit user feedback

Published: 12 October 2013 Publication History

Abstract

Recent studies suggest that by using additional user or item relationship information when building hybrid recommender systems, the recommendation quality can be largely improved. However, most such studies only consider a single type of relationship, e.g., social network. Notice that in many applications, the recommendation problem exists in an attribute-rich heterogeneous information network environment. In this paper, we study the entity recommendation problem in heterogeneous information networks. We propose to combine various relationship information from the network with user feedback to provide high quality recommendation results.
The major challenge of building recommender systems in heterogeneous information networks is to systematically define features to represent the different types of relationships between entities, and learn the importance of each relationship type. In the proposed framework, we first use meta-path-based latent features to represent the connectivity between users and items along different paths in the related information network. We then define a recommendation model with such latent features and use Bayesian ranking optimization techniques to estimate the model. Empirical studies show that our approach outperforms several widely employed implicit feedback entity recommendation techniques.

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      cover image ACM Conferences
      RecSys '13: Proceedings of the 7th ACM conference on Recommender systems
      October 2013
      516 pages
      ISBN:9781450324090
      DOI:10.1145/2507157
      • General Chairs:
      • Qiang Yang,
      • Irwin King,
      • Qing Li,
      • Program Chairs:
      • Pearl Pu,
      • George Karypis
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      Published: 12 October 2013

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      Author Tags

      1. hybrid recommender system
      2. information network

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      RecSys '13 Paper Acceptance Rate 32 of 136 submissions, 24%;
      Overall Acceptance Rate 254 of 1,295 submissions, 20%

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