When deploying artificial agents in real-world environments where they interact with humans, it is crucial that their behavior is aligned with the values, social norms or other requirements of that environment. However, many environments have implicit constraints that are difficult to specify and transfer to a learning agent. To address this challenge, we propose a novel method that utilizes the principle of maximum causal entropy to learn constraints and an optimal policy that adheres to these constraints, using demonstrations of agents that abide by the constraints. We prove convergence in a tabular setting and provide an approximation which scales to complex environments. We evaluate the effectiveness of the learned policy by assessing the reward received and the number of constraint violations, and we evaluate the learned cost function based on its transferability to other agents. Our method has been shown to outperform state-of-the-art approaches across a variety of tasks and environments, and it is able to handle problems with stochastic dynamics and a continuous state-action space.

提出一种基于最大因果熵的方法来学习环境约束下的最优策略，该方法利用在约束下运作的代理的演示进行学习，证明了其在表格设置中的收敛性并提供了一个可扩展到复杂环境的近似值。通过评估奖励和约束违规数，评估学习策略的有效性，并基于其在其他代理中的可转移性评估学习成本函数。此方法已经在各种任务和环境中表现优于现有技术，能够处理具有随机动态和连续状态动作空间的问题。

最大因果熵限制的强化学习