基盤モデルによる身体性ナビゲーションの実環境展開
Deploying Foundation Models for Embodied Navigation
基盤モデルをナビゲーションエージェントに適用する際の訓練バイアスと文脈長制限に対処するため、人間習慣データによる事前調整とメモリヘッドによる能動的記憶管理を提案し、実環境で性能向上を実証した。
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著者: Vishnu Sashank Dorbala, Dinesh Manocha
分類: cs.RO
原文アブストラクト
We present and tackle two problems associated with deploying Foundation Models (FMs) on Embodied Agents performing navigation: 1) Training bias in FMs leading to poor personalization in unseen environments, and 2) Limited FM context length hindering success, especially on long horizon tasks. Our solution for the former involves priming the FM with human-habit data mined from the scene and our solution for the latter involves active memory management via a novel `memory head' augmentation. We first present a taxonomy of existing literature on FM-based Embodied Navigation, and highlight these limitations. We then present our approaches, Transit-Aware Planning (TAP) and MemCtrl to address the limitations. With TAP, we present real-world results in a lab environment with a Turtlebot for personalized target finding that shows an average improvement of 18% over a non-TAP baseline. On MemCtrl, we report a 6% average improvement across various embodied tasks, with 20% on long instruction subsets, all while using nearly half the context used in the baseline model. Motivated by these result, we present our stance the deployability of FM-based embodied agents in real-world environments, and highlight open research directions.