Feudal Networks for Visual Navigation

• URL: http://arxiv.org/abs/2402.12498v2
• Date: Tue, 08 Oct 2024 18:24:15 GMT
• Title: Feudal Networks for Visual Navigation
• Authors: Faith Johnson, Bryan Bo Cao, Kristin Dana, Shubham Jain, Ashwin Ashok,
• Abstract summary: We introduce a new approach to visual navigation using feudal learning. Agents at each level see a different aspect of the task and operate at different spatial and temporal scales. The resulting feudal navigation network achieves near SOTA performance.
• Score: 6.1190419149081245
• License:
• Abstract: Visual navigation follows the intuition that humans can navigate without detailed maps. A common approach is interactive exploration while building a topological graph with images at nodes that can be used for planning. Recent variations learn from passive videos and can navigate using complex social and semantic cues. However, a significant number of training videos are needed, large graphs are utilized, and scenes are not unseen since odometry is utilized. We introduce a new approach to visual navigation using feudal learning, which employs a hierarchical structure consisting of a worker agent, a mid-level manager, and a high-level manager. Key to the feudal learning paradigm, agents at each level see a different aspect of the task and operate at different spatial and temporal scales. Two unique modules are developed in this framework. For the high-level manager, we learn a memory proxy map in a self supervised manner to record prior observations in a learned latent space and avoid the use of graphs and odometry. For the mid-level manager, we develop a waypoint network that outputs intermediate subgoals imitating human waypoint selection during local navigation. This waypoint network is pre-trained using a new, small set of teleoperation videos that we make publicly available, with training environments different from testing environments. The resulting feudal navigation network achieves near SOTA performance, while providing a novel no-RL, no-graph, no-odometry, no-metric map approach to the image goal navigation task.

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