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Tripartite Hidden Topic Models for Personalised Tag Suggestion

  • Morgan Harvey
  • Mark Baillie
  • Ian Ruthven
  • Mark J. Carman
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 5993)

Abstract

Social tagging systems provide methods for users to categorise resources using their own choice of keywords (or “tags”) without being bound to a restrictive set of predefined terms. Such systems typically provide simple tag recommendations to increase the number of tags assigned to resources. In this paper we extend the latent Dirichlet allocation topic model to include user data and use the estimated probability distributions in order to provide personalised tag suggestions to users. We describe the resulting tripartite topic model in detail and show how it can be utilised to make personalised tag suggestions. Then, using data from a large-scale, real life tagging system, test our system against several baseline methods. Our experiments show a statistically significant increase in performance of our model over all key metrics, indicating that the model could be successfully used to provide further social tagging tools such as resource suggestion and collaborative filtering.

Keywords

Topic Model Latent Dirichlet Allocation Dirichlet Process Latent Topic Tripartite Model 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Morgan Harvey
    • 1
  • Mark Baillie
    • 1
  • Ian Ruthven
    • 1
  • Mark J. Carman
    • 2
  1. 1.CIS DepartmentUniversity of StrathclydeGlasgowUK
  2. 2.Faculty of InformaticsUniversity of LuganoLuganoSwitzerland

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