A user collaboration privacy protection scheme with threshold scheme and smart contract. - Lei Zhang 052; Liu Desheng; Meina Chen; Hongyan Li 003; Chao Wang; Yunxiang Zhang; Yunming Du (Inf. Sci., 2021)

A Random Sensitive Area Based Privacy Preservation Algorithm for Location-Based Service. - Yi Liu; Jing Tian; Yunming Du; Shuai Li (Wirel. Pers. Commun., 2021)