Topological Necessities Transfers Robot Subgoals Across Embodiments
Topological Necessities extracts unavoidable bottlenecks and route forks from successful offline trajectories using transport-weighted geometry and persistent homology. Its frozen subgoal hierarchy transfers from PointMaze to Ant and Humanoid without retraining under a fixed, isomorphic free space, with strong AntMaze and Kitchen results.
This is a sharp reframing of robot planning: learn the task’s structural necessities instead of inheriting subgoals from one controller. The results are compelling, though the transfer claim depends on preserving the environment’s topology.
- –H0 captures bottleneck order, while H1 identifies route forks, producing certified, recursively organized subgoals.
- –A PointMaze-discovered gate set reaches a reported 96.1 Humanoid aggregate and 90.9 on AntMaze-giant without retraining.
- –Kitchen experiments suggest the method can uncover nested commitment structure beyond simple maze navigation.
- –The strongest contribution is executor independence, potentially enabling one strategic planner to coordinate different robot bodies.
- –The fixed, isomorphic free-space assumption leaves open how well the approach handles changed layouts, contacts, or genuinely different task geometry.
DISCOVERED
1h ago
2026-09-13
PUBLISHED
1h ago
2026-09-13
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