VLM搭載ロボットの記憶能力を測定する新ベンチマークを開発(New Benchmark Measures Memory Capabilities of VLM-Powered Robots)

2026-09-24 ジョージア工科大学

ジョージア工科大学の研究チームは、視覚言語モデル(VLM)を搭載したロボットが、過去の視覚・行動経験をどの程度記憶し、後の行動に利用できるかを評価する新しいベンチマーク「Memento」を開発した。従来のロボット評価は、物体認識や指示への応答など、その場での能力に重点を置いていたのに対し、Mementoはロボットが過去の出来事をどれだけ保持・想起・活用できるかを測定する。研究チームは、物体の位置や状態、過去の操作、環境の変化などを含む複数の記憶課題を設定し、VLM搭載ロボットの長期的な記憶能力を体系的に比較できるようにした。この評価基盤は、家庭や実環境で継続的に活動するロボットに必要な長期記憶・状況理解・経験利用能力の研究を促進することを目的としている。

<関連情報>

FindingDory:具現化されたエージェントの記憶能力を評価するためのベンチマーク FindingDory: A Benchmark to Evaluate Memory in Embodied Agents

Karmesh Yadav, Yusuf Ali, Gunshi Gupta, Yarin Gal, Zsolt Kira

VLM搭載ロボットの記憶能力を測定する新ベンチマークを開発(New Benchmark Measures Memory Capabilities of VLM-Powered Robots)

Abstract

Large vision-language models have recently demonstrated impressive performance in planning and control tasks, driving interest in their application to real-world robotics. However, deploying these models for reasoning in embodied contexts is limited by their ability to incorporate long-term experience collected across multiple days and represented by vast collections of images. Current VLMs typically struggle to process more than a few hundred images concurrently, highlighting the need for more efficient mechanisms to handle long-term memory in embodied settings. To effectively evaluate these models for long-horizon control, a benchmark must specifically target scenarios where memory is crucial for success. Existing long-video QA benchmarks overlook embodied challenges like object manipulation and navigation, which demand low-level skills and fine-grained reasoning over past interactions. Moreover, effective memory integration in embodied agents involves both recalling relevant historical information and executing actions based on that information, making it essential to study these aspects together rather than in isolation. In this work, we introduce a new benchmark for long-range embodied tasks in the Habitat simulator. This benchmark evaluates memory-based capabilities across 60 tasks requiring sustained engagement and contextual awareness in an environment. The tasks can also be procedurally extended to longer and more challenging versions, enabling scalable evaluation of memory and reasoning. We also present baselines that integrate state-of-the-art VLMs with low level navigation policies, assessing their performance on these memory-intensive tasks and highlight areas for improvement.

0109ロボット
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