Answering Range-Based Reverse kNN Queries. - Zhefan Zhong; Xin Lin 001; Liang He 001; Yan Yang 008 (APWeb/WAIM (2), 2018)

Answering why-not questions on KNN queries. - Zhefan Zhong; Xin Lin 001; Liang He 001; Jing Yang 023 (Frontiers Comput. Sci., 2019)

Answering range-based reverse kNN and why-not reverse kNN queries. - Zhefan Zhong; Xin Lin 001; Liang He 001 (Frontiers Comput. Sci., 2020)