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A Simple Approach to Constraint-Aware Imitation Learning with Application to Autonomous Racing

Created by
  • Haebom

Author

Shengfan Cao, Eunhyek Joa, Francesco Borrelli

Outline

This paper presents a simple approach to integrating safety into imitation learning (IL), where ensuring constraint compliance is challenging, such as when operating near the system's operational limits. Existing imitation learning methods, such as behavioral replication (BC), struggle to enforce constraints, often resulting in suboptimal performance in high-precision tasks. In this paper, we experimentally validate the proposed approach through simulations on an autonomous driving racing task utilizing both full-state and image feedback, demonstrating improved constraint compliance and greater task performance consistency compared to BC.

Takeaways, Limitations

Takeaways: We present a simple method for effectively integrating safety into imitation learning, demonstrating that it can improve constraint satisfaction and performance consistency in high-precision tasks. This suggests potential for practical applications such as autonomous driving.
Limitations: The effectiveness of the proposed method has only been verified in a simulation environment, and its performance in real-world environments requires further study. Further verification of generalizability across various tasks and systems is needed. Furthermore, the computational cost and complexity of the proposed approach are insufficiently analyzed.
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