不確実性誘導探索による条件付き・量化効果を持つ行動モデルの学習
Learning Action Models with Conditional and Quantified Effects via Uncertainty-Guided Exploration
限られた環境との相互作用から、条件付き効果や量化効果を含む行動モデルをオンラインで学習する手法OHCAMを提案。仮説間の不一致を最大化する行動選択で不確実性を減らし、ノイズに頑健で、実ロボットでも有効性を確認した。
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?
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: Jeffrey Jewett, William Solow, Sandhya Saisubramanian
分類: cs.AI
原文アブストラクト
Accurate action models are critical for effective planning. Existing action-model learning methods largely assume simple action representations or become computationally intractable when learning conditional and quantified effects. We present Online Hypothesis-Driven Conditional Action Model Learning (OHCAM), an online approach for learning action models with conditional and quantified effects from limited interactions with the environment. OHCAM maintains a belief over hypothesized action models and actively selects informative actions to reduce uncertainty by maximizing disagreement among competing hypotheses, while being robust to noisy observations. To enable scalability, OHCAM begins with a small set of simple action model hypotheses and expands to more complex conditions only when the current hypotheses become inconsistent with the data. Experiments on six benchmark planning domains demonstrate that OHCAM is sample efficient in learning action models that solve substantially more tasks than baselines, even with observation noise. We validate OHCAM on two tasks using a Kinova Gen3 robot, demonstrating the real-world applicability of our approach.