arXiv AI

EvolveNav: Proactive Preflection and Self-Evolving Memory for Zero-Shot Object Goal Navigation

arXiv:2606. 18235v1 Announce Type: new Abstract: Zero-Shot Object-Goal Navigation (ZS-OGN) requires embodied agents to explore and locate target objects without any prior training.

arXiv AI
Jun 2

From Demonstrations to Rewards: Test-Time Prompt Optimization for VLM Reward Models

arXiv:2606. 00083v1 Announce Type: cross Abstract: Reinforcement learning relies on accurate reward functions, which are often hand-crafted or even unavailable in real-world applications, such as robotics.

By Christian Gumbsch, Leonardo Barcellona, Lennard Sch\"unemann, Platon Karageorgis, Andrii Zadaianchuk, Zehao Wang, Sergey Zakharov, Fabien Despinoy, Rahaf Aljundi, Efstratios Gavves
arXiv AI
Oct 9

Self-Supervised Keyframe Discovery for Horizon-Invariant Behavior Cloning

The paper introduces Keyframe Mnemonics, a self‑supervised approach that identifies critical observations (mnemonics) to aid behavior cloning in non‑Markovian settings. By training a policy conditioned on these keyframes, the method achieves perfect success rates on synthetic memory tasks and improves performance on a real‑robot manipulation benchmark, maintaining high success even at horizons far beyond training. The approach offers theoretical context‑retention guarantees and practical scalability to long‑horizon decision making.

By Prabin Kumar Rath, Omkar Patil, Nakul Gopalan