Preprint
Sep 2026
X-Rec Technical Report
Recent advances in generative modeling have reshaped recommender systems by formulating recommendation as a next-item generation problem. Existing retrieval approaches primarily follow two paradigms: user-to-item (U2I) methods represent user context using one or a few deterministic embeddings, which limits the ability...
Cheng-Lei Shen, Chen-Zhe Huang, Dong Jiang et al.
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