視覚探索から運動制御へ:人工エージェントのための優先度場
From Visual Search to Movement Control: A Priority Field for Artificial Agents
人間の視覚探索を模した優先度マップを運動制御に拡張し、移動障害物を避けながら目標に到達するタスクで、優先度場を持つエージェントが効率的に学習し未知の複雑な状況でも優れた性能を示すことを明らかにした。
詳しい要約
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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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分類: cs.RO
原文アブストラクト
Human spatial attention is widely conceptualized as being guided by a priority map that integrates perceptual salience, current goals, and past experiences. Here, we extend priority-based computation to movement control in artificial agents. We first introduce a lightweight model of visual search based on an integrated priority map. Trained on human saccades, it reproduced key behavioral patterns, including oculomotor suppression and history-driven selection. Extending the search model, we equipped an artificial agent with a priority field and evaluated its performance in a reach-avoid task that required reaching a goal destination while avoiding moving obstacles. Compared with alternative architectures, priority-field agents trained more efficiently and performed better in unseen, complex scenarios, even from simple demonstrations. Adding a simple memory mechanism also produced human-like, history-driven effects in anticipating the likely location of the upcoming goal. These findings suggest that priority-based computation may provide a promising foundation for movement control in artificial agents.