TruthSR: Trustworthy Sequential Recommender Systems via User-generated Multimodal Content
arxiv(2024)
摘要
Sequential recommender systems explore users' preferences and behavioral
patterns from their historically generated data. Recently, researchers aim to
improve sequential recommendation by utilizing massive user-generated
multi-modal content, such as reviews, images, etc. This content often contains
inevitable noise. Some studies attempt to reduce noise interference by
suppressing cross-modal inconsistent information. However, they could
potentially constrain the capturing of personalized user preferences. In
addition, it is almost impossible to entirely eliminate noise in diverse
user-generated multi-modal content. To solve these problems, we propose a
trustworthy sequential recommendation method via noisy user-generated
multi-modal content. Specifically, we explicitly capture the consistency and
complementarity of user-generated multi-modal content to mitigate noise
interference. We also achieve the modeling of the user's multi-modal sequential
preferences. In addition, we design a trustworthy decision mechanism that
integrates subjective user perspective and objective item perspective to
dynamically evaluate the uncertainty of prediction results. Experimental
evaluation on four widely-used datasets demonstrates the superior performance
of our model compared to state-of-the-art methods. The code is released at
https://github.com/FairyMeng/TrustSR.
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