学習した報酬プロファイルによる車両エージェントの行動相互作用の因果的説明生成
Generating Causal Explanations of Vehicular Agent Behavioural Interactions with Learnt Reward Profiles
自動運転車のエージェント間相互作用を因果的に説明するため、報酬指標の重み付けを学習し、実世界の運転データセットで有効性を検証した研究。
著者: Rhys Howard, Nick Hawes, Lars Kunze
分類: cs.AI, cs.MA, cs.RO
原文アブストラクト
Transparency and explainability are important features that responsible autonomous vehicles should possess, particularly when interacting with humans, and causal reasoning offers a strong basis to provide these qualities. However, even if one assumes agents act to maximise some concept of reward, it is difficult to make accurate causal inferences of agent planning without capturing what is of importance to the agent. Thus our work aims to learn a weighting of reward metrics for agents such that explanations for agent interactions can be causally inferred. We validate our approach quantitatively and qualitatively across three real-world driving datasets, demonstrating a functional improvement over previous methods and competitive performance across evaluation metrics.
