Author

Ziqian Zeng

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Preprint Sep 2026

PARK: Accurate Block Retrieval for Sparse Attention in Video Diffusion Transformers

Diffusion Transformers (DiTs) have become a dominant architecture for video generation, but their efficiency is limited by the quadratic complexity of full attention. Sparse attention reduces this cost by retrieving important blocks and computing attention only within them, but inaccurate retrieval can either degrade g...

Yun-Wei Dai, Jia-Rui Wen, Hui-Ping Zhuang et al. · 0 citations

#artificial intelligence Feb 2025

X-SG2S: Safe and Generalizable Gaussian Splatting with X-dimensional Watermarks

X-SG$^2$S is the first framework to unify 1D-to-3D watermarking and enable simultaneous multi-modal watermark embedding in 3DGS, achieving this with minimal rendering interference and zero modifications to parameters or pipelines.

Zihan Cheng, Wen-Tao Bao, Huiping Zhuang et al. · arXiv.org · 1 citation · ⚡1

Jul 2026

EgoSafe: A First-Person Mobile-Captured Benchmark for Visual Safety Understanding

EgoSafe-Bench is introduced, a benchmark specifically designed to probe forensic reasoning in egocentric safety scenarios, generated by pairing each of the 3,000 video clips with a QA chain governed by the proposed Hierarchical Reasoning Evaluation (HRE) protocol.

Yuyun Chen, Tian-Ao Li, TianQuan Feng et al. · arXiv.org · 0 citations