arXiv AI By Xinyu Qiao, Yudong Hu, Congying Han, Weiyan Wu, Tiande Guo

Preference-based opponent shaping in differentiable games

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The paper introduces Preference-based Opponent Shaping (PBOS), a method that incorporates a preference parameter into an agent’s loss function to directly consider an opponent’s loss during strategy updates. By jointly learning strategy and preference parameters, PBOS aims to guide agents toward cooperative or competitive behaviors without relying on simple opponent predictions. Experiments on differentiable games demonstrate that PBOS enables agents to achieve better reward distributions across various environments.

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