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Shen Ren

3 accepted papers

2026

Light Forcing: Accelerating Autoregressive Video Diffusion via Sparse Attention

ICML 2026poster

Advanced autoregressive (AR) video generation models have improved visual fidelity and interactivity, but the quadratic complexity of attention remains a primary bottleneck for efficient deployment. While existing sparse attention solutions have shown promise on bidirectional models, we identify tha…

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2025

Mind the Cost of Scaffold! Benign Clients May Even Become Accomplices of Backdoor Attack

ICCV 2025poster

By using a control variate to calibrate the local gradient of each client, Scaffold has been widely known as a powerful solution to mitigate the impact of data heterogeneity in Federated Learning. Although Scaffold achieves significant performance improvements, we show that this superiority is at th…

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