DK-Root: A Joint Data-and-Knowledge-Driven Framework for Root Cause Analysis of QoE Degradations in Mobile Networks. - Qizhe Li; Haolong Chen; Jiansheng Li; Shuqi Chai; Xuan Li; Yuzhou Hou; Xinhua Shao; Fangfang Li; Kaifeng Han; Guangxu Zhu (CoRR, 2025)