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Augmenting Safety-Critical Driving Scenarios while Preserving Similarity to Expert Trajectories
April 23, 2024, 4:41 a.m. | Hamidreza Mirkhani, Behzad Khamidehi, Kasra Rezaee
cs.LG updates on arXiv.org arxiv.org
Abstract: Trajectory augmentation serves as a means to mitigate distributional shift in imitation learning. However, imitating trajectories that inadequately represent the original expert data can result in undesirable behaviors, particularly in safety-critical scenarios. We propose a trajectory augmentation method designed to maintain similarity with expert trajectory data. To accomplish this, we first cluster trajectories to identify minority yet safety-critical groups. Then, we combine the trajectories within the same cluster through geometrical transformation to create new trajectories. …
abstract arxiv augmentation cs.ai cs.lg data driving expert however imitation learning safety safety-critical shift trajectory type
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