Transfer to Rank for Top-N Recommendation

Wei Dai; Qing Zhang; Weike PanZhong Ming

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Transfer to Rank for Top-N Recommendation

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摘要

In this paper, we study top-N recommendation by exploiting users’ explicit feedback such as 5-star numerical ratings, which has been overlooked to some extent in the past decade. As a response, we design a novel and generic transfer learning based recommendation framework coarse-to-fine transfer to rank (CoFiToR), which is a significant extension of a very recent work called transfer to rank (ToR). The key idea of our solution is modeling users’ behaviors by simulating users’ shopping processes. Therefore, we convert the studied ranking problem to three subtasks corresponding to three specific questions, including (i) whether an item will be examined by a user, (ii) how an item will be scored by a user, and (iii) whether an item will finally be purchased by a user. Based on this new conversion, we then develop a three-staged solution that progressively models users’ preferences from a coarse granularity to a fine granularity. In each stage, we adopt an appropriate recommendation algorithm with pointwise or pairwise preference assumption to answer each question in order to seek an effective and efficient overall solution. Empirical studies on two large and public datasets showcase the merits of our solution in comparison with the state-of-the-art methods.

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来源
《IEEE transactions on big data》 |2020年第4期|770-779|共10页
作者
Wei Dai; Qing Zhang; Weike PanZhong Ming;
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作者单位

National Engineering Laboratory for Big Data System Computing Technology, College of Computer Science and Software Engineering, Shenzhen University, Shenzhen, China;

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正文语种英语
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关键词
Predictive models; Big Data; Business process re-engineering; Prediction algorithms; Computational modeling; Recommender systems; Task analysis; Transfer to rank; top-N recommendation; transfer learning; collaborative filtering;

Transfer to Rank for Top-N Recommendation

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