Incorporating reviewer and product information for review rating prediction

  • Authors:
  • Fangtao Li;Nathan Liu;Hongwei Jin;Kai Zhao;Qiang Yang;Xiaoyan Zhu

  • Affiliations:
  • State Key Laboratory of Intelligent Technology and Systems and Tsinghua National Laboratory for Information Science and Technology and Dept. of Computer Science and Technology, Tsinghua University ...;Dept. of Computer Science and Engineering, Hong Kong University of Science and Technology, Hong Kong;State Key Laboratory of Intelligent Technology and Systems and Tsinghua National Laboratory for Information Science and Technology and Dept. of Computer Science and Technology, Tsinghua University ...;NEC Labs China, Beijing, China;Dept. of Computer Science and Engineering, Hong Kong University of Science and Technology, Hong Kong;State Key Laboratory of Intelligent Technology and Systems and Tsinghua National Laboratory for Information Science and Technology and Dept. of Computer Science and Technology, Tsinghua University ...

  • Venue:
  • IJCAI'11 Proceedings of the Twenty-Second international joint conference on Artificial Intelligence - Volume Volume Three
  • Year:
  • 2011

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Abstract

Traditional sentiment analysis mainly considers binary classifications of reviews, but in many real-world sentiment classification problems, non-binary review ratings are more useful. This is especially true when consumers wish to compare two products, both of which are not negative. Previous work has addressed this problem by extracting various features from the review text for learning a predictor. Since the same word may have different sentiment effects when used by different reviewers on different products, we argue that it is necessary to model such reviewer and product dependent effects in order to predict review ratings more accurately. In this paper, we propose a novel learning framework to incorporate reviewer and product information into the text based learner for rating prediction. The reviewer, product and text features are modeled as a three-dimension tensor. Tensor factorization techniques can then be employed to reduce the data sparsity problems. We perform extensive experiments to demonstrate the effectiveness of our model, which has a significant improvement compared to state of the art methods, especially for reviews with unpopular products and inactive reviewers.