RDAR: 報酬駆動型エージェント関連性推定による自動運転
RDAR: Reward-Driven Agent Relevance Estimation for Autonomous Driving
自動運転モデルへの入力から除外可能なエージェントを特定し、各エージェントの関連性を学習する手法を提案。大規模運転データセットで評価し、少ないエージェント数で同等の運転性能を達成。
詳しい要約
1. どんなもの?
2. 先行研究と比べてどこがすごい?
3. 技術・手法の肝は?
4. どうやって有効だと検証した?
5. 議論はある?
6. 次に読むべき論文は?
※ AIが要旨から生成した要約です。正確性は原文をご確認ください。
著者: Carlo Bosio, Greg Woelki, Noureldin Hendy, Nicholas Roy, Byungsoo Kim
分類: cs.LG, cs.AI, cs.RO
原文アブストラクト
Human drivers focus only on a handful of agents at any one time. On the other hand, autonomous driving systems process complex scenes with numerous agents, regardless of whether they are pedestrians on a crosswalk or vehicles parked on the side of the road. While attention mechanisms offer an implicit way to reduce the input to the elements that affect decisions, existing attention mechanisms for capturing agent interactions are quadratic, and generally computationally expensive. We propose RDAR, a strategy to learn per-agent relevance -- how much each agent influences the behavior of the controlled vehicle -- by identifying which agents can be excluded from the input to a pre-trained behavior model. We formulate the masking procedure as a Markov Decision Process where the action consists of a binary mask indicating agent selection. We evaluate RDAR on a large-scale driving dataset, and demonstrate its ability to learn an accurate numerical measure of relevance by achieving comparable driving performance, in terms of overall progress, safety and performance, while processing significantly fewer agents compared to a state of the art behavior model.
