Hierarchical Annotation Event Extraction Method in Multiple Scenarios. - Shi Wang 002; Zhujun Wang 003; Yi Jiang 004; Huayu Wang (Wirel. Commun. Mob. Comput., 2021)

A covert channel over blockchain based on label tree without long waiting times. - Zhujun Wang 003; Lejun Zhang; Ran Guo; Guopeng Wang; Jing Qiu 002; Shen Su; Yuan Liu 002; Guangxia Xu; Zhihong Tian (Comput. Networks, 2023)

Research on Covert Communication Technology Based on Matrix Decomposition of Digital Currency Transaction Amount. - Lejun Zhang; Bo Zhang; Ran Guo; Zhujun Wang 003; Guopeng Wang; Jing Qiu 002; Shen Su; Yuan Liu 002; Guangxia Xu; Zhihong Tian; Sergey Gataullin (KSII Trans. Internet Inf. Syst., 2024)

From one-one to one-many: ORCA enables scalable and revocable group covert communication on blockchain. - Zhujun Wang 003; Lejun Zhang; Xueqing Li; Shen Su; Jing Qiu 002; Tie Qiu 001; Ran Guo (Comput. Networks, 2025)

A blockchain-oriented covert communication technology with controlled security level based on addressing confusion ciphertext. - Lejun Zhang; Bo Zhang; Ran Guo; Zhujun Wang 003; Guopeng Wang; Jing Qiu 002; Shen Su; Yuan Liu 002; Guangxia Xu; Zhihong Tian; Sergey Gataullin (Frontiers Comput. Sci., 2025)