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• W2402457424 abstract "User preferences change over time and capturing such changes is essential for developing accurate recommender systems. Despite its importance, only a few works in collaborative filtering have addressed this issue. In this paper, we consider evolving preferences and we model user dynamics by introducing and learning a transition matrix for each user's latent vectors between consecutive time windows. Intuitively, the transition matrix for a user summarizes the time-invariant pattern of the evolution for the user. We first extend the conventional probabilistic matrix factorization and then improve upon this solution through its fully Bayesian model. These solutions take advantage of the model complexity and scalability of conventional Bayesian matrix factorization, yet adapt dynamically to user's evolving preferences. We evaluate the effectiveness of these solutions through empirical studies on six large-scale real life data sets.MSC codesLatent factor transitionPreference evolvingDynamic recommendation" @default.
• W2402457424 created "2016-06-24" @default.
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• W2402457424 date "2014-04-28" @default.
• W2402457424 modified "2023-09-26" @default.
• W2402457424 title "Latent Factor Transition for Dynamic Collaborative Filtering" @default.
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• W2402457424 doi "https://doi.org/10.1137/1.9781611973440.52" @default.
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