H-WM：階層型ワールドモデルによるロボットのタスク・動作計画
H-WM: Robotic Task and Motion Planning Guided by Hierarchical World Model
論理空間と視覚空間の状態遷移を統合的に予測する階層型ワールドモデルを提案し、長期的なロボットタスクの計画と実行を安定化させる。
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: Jinbang Huang, Wenyuan Chen, Zhiyuan Li, Oscar Pang, Xiao Hu, Lingfeng Zhang, Yuanzhao Hu, Zhanguang Zhang, Mark Coates, Tongtong Cao, Xingyue Quan, Yingxue Zhang
分類: cs.RO
原文アブストラクト
World models are becoming central to robotic planning and control as they enable prediction of future state transitions. Existing approaches often emphasize video generation or natural-language prediction, which are difficult to ground in robot actions and suffer from compounding errors over long horizons. Classic task and motion planning models world transitions in logical space, enabling robot-executable and robust long-horizon reasoning. However, they typically operate independently of visual perception, preventing synchronized symbolic and visual state prediction. We propose a Hierarchical World Model (H-WM) that jointly predicts logical and visual state transitions within a unified framework. H-WM combines a high-level logical world model with a low-level visual world model, integrating the long-horizon robustness of symbolic reasoning with visual grounding. The hierarchical outputs provide stable intermediate guidance for long-horizon tasks, mitigating error accumulation and enabling robust execution across extended task sequences. Experiments across multiple vision-language-action (VLA) control policies demonstrate the effectiveness and generality of H-WM's guidance.
