OptRCA: A More Efficient and Accurate Approach for Automated Root Cause Analysis and Explanation. - Jingquan Ge; Yaowen Zheng; Yuekang Li; Wei Ma 014; Sheikh Mahbub Habib; Praveen Kakkolangara; Gabriel Byman; Yang Liu 003 (ACM Trans. Softw. Eng. Methodol., 2026)