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- W2996661047 abstract "Exploiting temporal effect has empirically been recognized as a promising way to improve recommendation performance in recent years. In real-world applications, one-class data in the form of (user, item, timestamp) are usually more accessible and abundant than numerical ratings. In this article, we focus on exploiting such one-class data in order to provide personalized next-item recommendation services. Specifically, we base our work on the framework of time-aware item-based collaborative filtering and propose a simple yet effective similarity measurement called bidirectional item similarity (BIS) that is able to capture sequential patterns even from noisy data. Furthermore, we extend BIS via some factorization techniques and obtain an adaptive version, i.e., adaptive BIS (ABIS), in order to better fit the behavioral data. We also design a compound weighting function that leverages the complementarity between two well-known time-aware weighting functions. With the proposed similarity measurements and weighting function, we obtain two novel collaborative filtering methods that are able to achieve significantly better performance than the state-of-the-art methods, showcasing their effectiveness for next-item recommendation." @default.
- W2996661047 created "2019-12-26" @default.
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- W2996661047 date "2019-12-20" @default.
- W2996661047 modified "2023-10-16" @default.
- W2996661047 title "Next-Item Recommendation via Collaborative Filtering with Bidirectional Item Similarity" @default.
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- W2996661047 doi "https://doi.org/10.1145/3366172" @default.
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