賢く記憶する:ロボット記憶のための視覚履歴圧縮と双曲経験空間
Remember Smarter: Visual History Compressor and Hyperbolic Experience Space for Robotic Memory
長期的なロボットポリシーのために、視覚履歴を圧縮し、経験を双曲空間で階層的に保存・活用するプラグインモジュールを提案。pi0に適用し、LIBERO-Plusで成功率を向上させた。
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著者: Dai Zhou, Jiexi Yan, Tong Li, Yuxuan Wang, Cheng Deng
分類: cs.RO
原文アブストラクト
Long-horizon robot policies require compact access to recent observations and reusable experience without expanding the vision-language-action (VLA) context. We introduce Remember Smarter (RS), a plug-and-play module with complementary visual-history and hyperbolic experience-memory branches. Its visual branch compresses multi-view patch histories using bidirectional spatial Mamba and causal temporal Mamba, then exposes the resulting memory to action-facing hidden states through residual cross-attention while leaving the VLM visual-token stream unchanged. Its experience branch stores successful final-layer VLM states in a Poincare VAE space, organizes them hierarchically, and asynchronously converts retrieved experience into geodesic prompt tokens without blocking action inference. When adapted to pi0, RS increases total success on LIBERO-Plus from 53.6% to 70.6% and achieves substantial performance gains in real-robot experiments designed to evaluate memory retention and experience utilization.