リスク認識型ドメインランダム化が接触を伴うサンプリングベース予測制御に与える驚くべき影響
On Surprising Effects of Risk-Aware Domain Randomization for Contact-Rich Sampling-based Predictive Control
接触を伴うサンプリングベース予測制御において、リスク認識型ドメインランダム化がモデル誤差へのロバスト性だけでなく、最適化器が見るコスト地形を変えることを示した。
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?
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著者: Sergio A. Esteban, Junheng Li, Vince Kurtz, Aaron D. Ames
分類: cs.RO, cs.SY, eess.SY
原文アブストラクト
Domain randomization (DR) is widely used in policy learning to improve robustness to modeling error, but remains underexplored in contact-rich sampling-based predictive control (SPC), where rollout quality is highly sensitive to uncertainty. In this work, we take the first step by studying risk-aware DR in predictive sampling on a simple yet representative Push-T task, comparing average, optimistic, and pessimistic rollout aggregations under randomized model instances. Our initial results suggest that DR affects not only robustness to model error, but also the effective cost landscape seen by the sampling-based optimizer, by reshaping the basin of attraction around contact-producing actions. This opens up potential for exploring better grounded risk-aware contact-rich SPC under model uncertainty. Video: https://youtu.be/f1F0ALXxhSM
