Flying by Inference: Active Inference World Models for Adaptive UAV Swarms
TLDR
Expert-guided active inference framework for UAV swarm trajectory planning using learned probabilistic world models from offline demonstrations.
Reasoning
Strengths: Novel integration of active inference with expert demonstrations for hierarchical planning, validated with both simulations and real-flight data. Weaknesses: Limited comparison (only modified Q-learning), no explicit discussion of scalability or failure modes.
Read-first score
Read-first score 47.4, weighted from topical fit, citation, graph, method, reproducibility, and recency signals. Original total remains 33.
Field roles
Rank sensitivity
Stability: volatile; rank range: 231.
Keyword Scores
Deep Analysis
Innovations
- Conversion of multi-UAV trajectory design from repeated combinatorial optimization into a hierarchical probabilistic inference problem
- Expert-guided active-inference-inspired framework using genetic-algorithm planner with repulsive-force collision avoidance (GA-RF) to generate expert demonstrations
- Learning of a probabilistic world model with Mission, Route, and Motion dictionaries that capture hierarchical dependencies
- Online operation using posterior beliefs over symbolic states and KL-divergence-based abnormality indicators for mission allocation, route insertion, motion adaptation, and collision-aware replanning
- Integration of Bayesian state estimators (EKF and PF) at the motion level for trajectory correction under uncertainty
Methodology
The method consists of an offline phase where a genetic-algorithm planner with repulsive-force collision avoidance (GA-RF) generates expert demonstrations, which are abstracted into Mission, Route, and Motion dictionaries. These dictionaries are used to learn a probabilistic world model that captures how expert mission allocations induce route orders and how route orders induce motion-level behaviors. During online operation, the UAV swarm evaluates candidate actions by forming posterior beliefs over symbolic states and minimizing KL-divergence-based abnormality indicators with respect to expert-derived reference distributions, enabling adaptive replanning without rerunning the offline optimizer.
Key Results
Simulation results show that the proposed framework preserves expert-like planning structure while producing smoother and more stable behavior than modified Q-learning. Additional validation using real-flight UAV trajectory data demonstrates that the learned world model can correct symbolic predictions under noisy and non-smooth observations.