Xiang Li

Postdoc, University of Pennsylvania, University of Pennsylvania

2 papers at NeurIPS 2025

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Poster Session 2

2 papers

Wednesday, December 3, 2025 · 4:30 PM → 7:30 PM

Exhibit Hall C,D,E

Mitigating the Privacy–Utility Trade-off in Decentralized Federated Learning via f-Differential Privacy

#1211 Spotlight · Xiang Li, Chendi Wang, Buxin Su, Qi Long, Weijie J Su

We develop a fine-grained f-DP analysis for decentralized federated learning, improving privacy–utility trade-offs under random walk communication and extending to settings with dependent noise.

On the Empirical Power of Goodness-of-Fit Tests in Watermark Detection

#3716 Spotlight · Weiqing He, Xiang Li, Tianqi Shang, Li Shen, Weijie J Su, Qi Long

Introduce and apply Goodness-of-Fit (GoF) tests to watermark detection, and explore their effectiveness across diverse conditions.