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Xian Li

2 papers indexed

arxivcs.CV2026-07-15

UniPhysGen: Unified Physical Grounding for Simulation-Ready 3D Assets

Xian Li, Rong Wei, Lujie Yang, Haolin Huang, Junyuan Fang, Siliang Tang, et al.

Physically grounded 3D assets are increasingly important for embodied AI and robotic simulation. However, most existing 3D assets lack unified physical semantics, including articulation semantics and intrinsic physical properties, required for realistic interaction. Current appro…

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arxiveess.AScs.AI2026-06-29

Semi-Supervised Sound Event Detection with Conditional Mixup and Embedding-Level Contrastive Loss

Nian Shao, Xian Li, Xiaofei Li

Sound event detection (SED) is a core module for acoustic environmental analysis, yet its performance is often limited by scarce labeled data. Recent systems leverage large pretrained audio foundation models, but effective fine-tuning remains challenging because labeled data are…

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