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Yu-Xiang Xie

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#artificial intelligence Preprint Sep 2026

AdaGuard: An Adaptive Guard Model with User-defined Policies

This work proposes SafePO, a reinforcement learning algorithm for refining violation identification while balancing explanatory reasoning and final verdicts, and develops AdaGuard, a family of 0.6B, 4B, and 8B guard models that assess agent trajectories under policies supplied at inference time.

Yun-Hao Feng, Yi-Fan Ding, Yu-Xiang Xie et al. · 0 citations

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