IMWM: Intuition Models Complement World Models for Latent Planning
TLDR
IMWM pairs a world model with an intuition model from demonstrations to improve latent planning, outperforming world-model-only planners on four pixel-based tasks.
Reasoning
The paper clearly identifies a limitation of world models alone (search bottleneck) and proposes a practical solution with three lightweight components. Strengths include strong empirical results across multiple tasks and a clean ablation. Weaknesses are the limited task diversity (all simulated) and lack of real-world validation.
Read-first score
Read-first score 55.2, weighted from topical fit, citation, graph, method, reproducibility, and recency signals. Original total remains 41.
Field roles
Rank sensitivity
Stability: volatile; rank range: 408.
Keyword Scores
Deep Analysis
Innovations
- Pairing an intuition model (trained from demonstrations) with a world model for latent planning to address search bottlenecks
- Retrieval Initialization: initializing planner's action proposals from retrieved demonstrations
- Hybrid Cost: combining intuition score with world-model rollout cost
- Reliability Gate: adjusting trust in intuition per setting
Methodology
IMWM combines a learned latent world model with an intuition model trained from demonstrations. Three lightweight components are introduced: Retrieval Initialization seeds the planner with actions from a retrieved demonstration; Hybrid Cost merges the intuition score with the world-model rollout cost; and a Reliability Gate modulates how much the planner relies on intuition. The method is evaluated on four pixel-based goal-reaching tasks (Two-Room, Reacher, Push-T, OGBench-Cube) against a world-model-only planner, using success rate as the metric.
Key Results
IMWM achieves higher mean success than the world-model-only planner on all four tasks, with the largest gains on Two-Room (99.2%, +11.5 percentage points) and OGBench-Cube (94.7%, +28.5 percentage points).