arXiv — cs.AI preprintsInternational9 October 2026
Beyond the Remembered World: Predictive 4D Belief for Persistent Navigation in Evolving Worlds
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arXiv:2609.39166v3 Announce Type: replace Abstract: Persistent spatial memory enables embodied agents to navigate familiar environments across repeated visits. However, targets may move while unobserved, including during navigation, making remembered locations unreliable by the time an agent arrives. Despite advances in memory retrieval and state prediction, accounting for continued hidden world evolution and revising beliefs under limited visibility remain challenging. We study Evolving-World Navigation, where agents infer target locations from intermittent observations, predict their states
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