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arXiv 1902.01909cs.ROcs.AIcs.LGstat.ML
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自动驾驶汽车的自适应压力测试

Adaptive Stress Testing for Autonomous Vehicles

Stanford University(斯坦福大学);Carnegie Mellon University Silicon Valley(卡内基梅隆大学硅谷校区)

Mark Koren, Saud Alsaif, Ritchie Lee, Mykel J. Kochenderfer

摘要:

本文提出了一种测试自动驾驶汽车决策系统的方法。我们的方法涉及扰动车辆的环境中的随机元素,直到车辆参与碰撞。而不是应用直接蒙特卡罗采样来寻找碰撞的情况下,我们制定了一个马尔可夫决策过程的问题,并使用强化学习算法,以找到最有可能的失败的情况。本文介绍了可以扩展到大型环境的蒙特卡罗树搜索(MCTS)和深度强化学习(DRL)解决方案。我们表明,DRL可以找到更可能的故障情况比MCTS与较少的调用模拟器。一个涉及车辆接近人行横道的仿真场景被用来验证该框架。我们提出的方法是非常普遍的,可以很容易地应用到其他场景给定的车辆和环境的适当模型。

英文摘要:

This paper presents a method for testing the decision making systems of autonomous vehicles. Our approach involves perturbing stochastic elements in the vehicle's environment until the vehicle is involved in a collision. Instead of applying direct Monte Carlo sampling to find collision scenarios, we formulate the problem as a Markov decision process and use reinforcement learning algorithms to find the most likely failure scenarios. This paper presents Monte Carlo Tree Search (MCTS) and Deep Reinforcement Learning (DRL) solutions that can scale to large environments. We show that DRL can find more likely failure scenarios than MCTS with fewer calls to the simulator. A simulation scenario involving a vehicle approaching a crosswalk is used to validate the framework. Our proposed approach is very general and can be easily applied to other scenarios given the appropriate models of the vehicle and the environment.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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