Noise Elimination for Coalcutter Vibration Signal Based on Ensemble Empirical Mode Decomposition and an Improved Harris Hawks Optimization Algorithm. - Jing Xu; Chaofan Ren; Yanxin Liu; Xiaonan Chang (Symmetry, 2022)

Robot Time-Optimal Trajectory Planning Based on Quintic Polynomial Interpolation and Improved Harris Hawks Algorithm. - Jing Xu; Chaofan Ren; Xiaonan Chang (Axioms, 2023)