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评分偏差对于推荐质量的影响

胡必云 李舟军 王君 巢文涵

胡必云, 李舟军, 王君, 等 . 评分偏差对于推荐质量的影响[J]. 北京航空航天大学学报, 2012, 38(6): 823-828.
引用本文: 胡必云, 李舟军, 王君, 等 . 评分偏差对于推荐质量的影响[J]. 北京航空航天大学学报, 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)

评分偏差对于推荐质量的影响

基金项目: 国家自然科学基金资助项目(61170189,60973105);软件开发环境国家重点实验室自主研究课题资助项目(SKLSDE-2011ZX-03)
详细信息
  • 中图分类号: TP182

Effect of rating residual on recommendation quality

  • 摘要: 从理论上分析了评分偏差对于推荐质量的影响;基于潜在偏好及已知评分对评分偏差进行度量,其中潜在偏好通过心理测量学模型计算得出;通过设定不同的评分偏差水平,对评分偏差的影响进行了实验验证.理论分析及实验验证表明:评分偏差可导致推荐准确度及覆盖度下降;基于高质量的评分数据,协同过滤算法可为用户作出好的推荐.

     

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出版历程
  • 收稿日期:  2011-03-18
  • 网络出版日期:  2012-06-30

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