SARA: A Sparsity-Aware Efficient Oblivious Aggregation Service for Federated Matrix Factorization. - Yifeng Zheng; Tianchen Xiong; Huajie Ouyang; Songlei Wang; Zhongyun Hua; Yansong Gao 001 (WISE (2), 2024)

OblivTime: Oblivious and Efficient Interval Skyline Query Processing Over Encrypted Time-Series Data. - Huajie Ouyang; Yifeng Zheng; Songlei Wang; Zhongyun Hua (IEEE Trans. Serv. Comput., 2025)