Papers › Learning-Based Conformal Tube MPC for Safe Control in Interactive Multi-Agent Systems
Learning-Based Conformal Tube MPC for Safe Control in Interactive Multi-Agent Systems
Shuqi Wang, Yue Gao, Xiang Yin
Safety assurance in multi-agent systems with coupled dynamics is a fundamental yet challenging problem, especially when agents exhibit uncertain and state-dependent behaviors. Classical robust control often assumes worst-case disturbances, leading to overly conservative actions. In this work, we propose a learning-based framework that combines conformal prediction with model predictive control (MPC) to ensure probabilistic safety under action-level uncertainty. Unlike prior approaches that predict future states, we directly model the control action of the uncontrollable agent as a stochastic function of the joint state, trained via neural networks and calibrated using conformal prediction. This enables us to construct dynamic, probabilistically guaranteed reachable tubes for the uncontrollable agent. These tubes are then embedded into an MPC formulation to synthesize control actions for the controllable agent that ensure safe interactions over a finite planning horizon. We provide formal stepwise and cumulative safety guarantees, and demonstrate the effectiveness of our approach through a pedestrian-vehicle interaction scenario. Compared to baseline methods, our framework achieves higher safety rates while maintaining high performance in terms of speed and responsiveness.
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