A dual watermarking algorithm for trajectory data based on robust watermarking and fragile watermarking. - Yuchen Hu; Xingxiang Jiang; Changqing Zhu; Na Ren; Shuitao Guo; Jia Duan; Luanyun Hu (Comput. Geosci., 2024)

Vector map zero-watermarking algorithm considering feature set granularity. - Changqing Zhu; Heyan Wang; Yazhou Zhao; Xingxiang Jiang; Hua Sun; Jia Duan; Hui Li; Luanyun Hu; Na Ren (J. Inf. Secur. Appl., 2025)