Author

Xi Chen

2 papers indexed here

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2026

PREFed: An Effective and Stealthy Static-Anchor Backdoor Attack via Trigger Pre-Optimization in Federated Learning

Existing Federated Learning (FL) backdoor attacks commonly employ round-wise proximity strategies, dynamically adapting malicious updates to mimic benign ones in order to evade detection. However, such adaptive mechanisms often introduce instability, increase computational overhead, and create temporal patterns that ma...

Xi Chen, Rui Zeng, Chun-Yi Zhou et al. · IEEE Transactions on Informa... · 0 citations

Preprint Aug 2026

GDPevo: Evaluating Agent Self-Evolution on Real Business Tasks

Agent self-evolution updates an agent's persistent state from prior experience and reuses it to solve related tasks more effectively. Evaluating self-evolution is difficult: existing benchmarks provide limited coverage of economically valuable task domains, do not always design training and test tasks such that test-ti...

Leijun Zhou, Zhihao Liu, Xiang Qu et al. · 1 citation