Investigating topic models for social media user recommendation

  • Authors:
  • Marco Pennacchiotti;Siva Gurumurthy

  • Affiliations:
  • Yahoo! Labs, Sunnyvale, CA, USA;Yahoo! Labs, Sunnyvale, CA, USA

  • Venue:
  • Proceedings of the 20th international conference companion on World wide web
  • Year:
  • 2011

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Abstract

This paper presents a user recommendation system that recommends to a user new friends having similar interests. We automatically discover users' interests using Latent Dirichlet Allocation (LDA), a linguistic topic model that represents users as mixtures of topics. Our system is able to recommend friends for 4 million users with high recall, outperforming existing strategies based on graph analysis.