A Modified Ant Colony Optimization for the Multi-Objective Operating Room Scheduling. - Chonglei Gu; Qingzhao Liu; Wei Xiang (ICSI (1), 2015)

A Gradient-Free and Parallel Hierarchical Motion Planning Framework for Quadrotor Swarm. - Xuewei Zhang; Qingzhao Liu; Hongyu Cao; Bailing Tian (ICARCV, 2024)

Sampling-Based Hierarchical Trajectory Planning for Formation Flight. - Qingzhao Liu; Bailing Tian; Xuewei Zhang; Junjie Lu; Zhiyu Li (CoRR, 2024)