Multi-Task Bayesian Optimization for Tuning Decentralized Trajectory Generation in Multi-UAV Systems

We treat each task as a trajectory generation scenario defined by a specific number of drone-to-drone interactions. To model relationships across scenarios, we employ Multi-Task Gaussian Processes, which capture shared structure across tasks and enable efficient information transfer during optimization. We compare two strategies: optimizing the average mission time across all tasks and optimizing each task individually. Through a comprehensive simulation campaign, we show that single-task optimization leads to progressively shorter mission times as swarm size grows, but requires significantly more optimization time than the average-task approach. Keywords: Multi-Task Bayesian Optimization; Gaussian Processes; Multi-agent systems; UAV; Trajectory generation 1. INTRODUCTION In recent years, research efforts and real-world applications of Unmanned Aerial Vehicles (UAVs) have increasingly shifted from single-agent to multi-agent systems.