Zhijun Zhang

This volume constitutes the refereed proceedings of the 20th International Symposium on Neural Networks, ISNN 2026, held in Hanzhong, China, August 18–21, 2026.The 28 full papers were carefully reviewed and selected from 120 submissions. They were organized in topical sections as follows: Image and Signal Processing; Deep Learning; Robotics; Control Systems and Unsupervised Learning.