IGDrivSim: A Benchmark for the Imitation Gap in Autonomous Driving

• URL: http://arxiv.org/abs/2411.04653v1
• Date: Thu, 07 Nov 2024 12:28:52 GMT
• Title: IGDrivSim: A Benchmark for the Imitation Gap in Autonomous Driving
• Authors: Clémence Grislain, Risto Vuorio, Cong Lu, Shimon Whiteson,
• Abstract summary: textbfIGDrivSim is a benchmark built on top of the Waymax simulator. Our experiments show that this perception gap can hinder the learning of safe and effective driving behaviors. We show that combining imitation with reinforcement learning, using a simple penalty reward for prohibited behaviors, effectively mitigates these failures.
• Score: 35.64960921334498
• License:
• Abstract: Developing autonomous vehicles that can navigate complex environments with human-level safety and efficiency is a central goal in self-driving research. A common approach to achieving this is imitation learning, where agents are trained to mimic human expert demonstrations collected from real-world driving scenarios. However, discrepancies between human perception and the self-driving car's sensors can introduce an \textit{imitation gap}, leading to imitation learning failures. In this work, we introduce \textbf{IGDrivSim}, a benchmark built on top of the Waymax simulator, designed to investigate the effects of the imitation gap in learning autonomous driving policy from human expert demonstrations. Our experiments show that this perception gap between human experts and self-driving agents can hinder the learning of safe and effective driving behaviors. We further show that combining imitation with reinforcement learning, using a simple penalty reward for prohibited behaviors, effectively mitigates these failures. Our code is open-sourced at: https://github.com/clemgris/IGDrivSim.git.

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