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Volume 38 Issue 6
Jun.  2012
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Journal of Beijing University of Aeronautics and Astronautics  > 2012  >  38(6): 823-828.
Hu Biyun, Li Zhoujun, Wang Jun, et al. Effect of rating residual on recommendation quality[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(6): 823-828. (in Chinese)
Citation: Hu Biyun, Li Zhoujun, Wang Jun, et al. Effect of rating residual on recommendation quality[J]. Journal of Beijing University of Aeronautics and Astronautics, 2012, 38(6): 823-828. (in Chinese)
shu

Effect of rating residual on recommendation quality

  • 1.

    State Key Laboratory of Software Development Environment, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 2. School of Computer Science and Technology, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • 3. Key Laboratory of Network Technology of Beijing, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

  • Received Date: 18 Mar 2011
  • Publish Date: 30 Jun 2012
    Abstract
  • The effect of the rating residual on recommendation quality was analyzed. The rating residual was measured through user ratings and latent preferences. Latent preferences were computed with psychometric models. With different levels of rating residual, the effect of the rating residual was experimentally evaluated on real world datasets. Theoretical analysis and experimental results show that rating residual has negative effects on recommendation accuracy and coverage. Based on high quality of data, collaborative filtering algorithms can make precise recommendations for users.

     

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