Time-Dependent Conformal Transformations and the Propagator for Quadratic Systems. - Qiliang Zhao; Pengming Zhang; Peter A. Horvathy (Symmetry, 2021)

Multimodal Continuous User Authentication on Mobile Devices via Interaction Patterns. - Xiaomei Zhang; Pengming Zhang; Haomin Hu (Wirel. Commun. Mob. Comput., 2021)

sAuth: a hierarchical implicit authentication mechanism for service robots. - Xiaomei Zhang; Pengming Zhang; Xin Zeng; Yajie Wang; Chi-Hung Chi (J. Supercomput., 2022)