English

Landscape-Aware Bandit Hyper-Heuristics for Online Operator Selection in UAV Inspection Routing

Computational Engineering, Finance, and Science 2026-05-15 v1

Abstract

UAV multi-site inspection often reduces to choosing a high-quality visiting order after target sites have been extracted from a map. This paper develops LA-BHH, a landscape-aware bandit hyper-heuristic that learns an operator-selection policy online for this routing layer. LA-BHH treats 2-opt, swap, relocate, and Or-opt moves as low-level arms, builds context from static landscape descriptors and online search-state features, and updates a LinUCB controller from improvement rewards during the same run. Experimental results on 45 generated Euclidean TSP instances show that LA-BHH achieves the best mean final gap and convergence AUC, with 0.0223 and 0.0389 respectively. It reduces final gap by 17.6\% over UCB-HH, 22.6\% over Random-HH, and 68.2\% over nearest-neighbor construction. Ablation results further show that contextual credit assignment, 2-opt repair, and stagnation-aware state use are the main contributors.

Keywords

Cite

@article{arxiv.2605.14620,
  title  = {Landscape-Aware Bandit Hyper-Heuristics for Online Operator Selection in UAV Inspection Routing},
  author = {Junhao Wei and Yanxiao Li and Yifu Zhao and Qibin He and Haochen Li and Dexing Yao and Baili Lu and Zhenhong Peng and Yapeng Wang and Sio-Kei Im and Xu Yang},
  journal= {arXiv preprint arXiv:2605.14620},
  year   = {2026}
}