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cs.AI2026
Content Depth Matters in Short-Video Recommendation: Rethinking the Attention Economy
Liwei Deng, Jing Jiang, Zhiwei Li +2
Driven by the attention economy, short-video Recommender Systems (RSs) are primarily optimized to maximize user engagement by promoting videos that capture attention within seconds…
cs.IR2026
Learning to Collaborate via Structures: Cluster-Guided Item Alignment for Federated Recommendation
Yuchun Tu, Zhiwei Li, Bingli Sun +2
Federated recommendation facilitates collaborative model training across distributed clients while keeping sensitive user interaction data local. Conventional approaches typically…