[TOIS, CCF-A] Wenxuan Xie, Jian Cao, Zi Huan, Nengjun Zhu, Shiyou Qian, and Guandong Xu, FINDUS: A Fairness-oriented Interaction-aware Disadvantaged Subgroup Detection Approach for Recommender Systems, , ACM Transactions on Information Systems (TOIS). 2026