Symmetry-Aware Interpretable Anomaly Alarm Optimization Method for Power Monitoring Systems Based on Hierarchical Attention Deep Reinforcement Learning. - Hou, Zepeng; Fu, Qiang; Li, Weixun; Wang, Yao; Dong, Zhengkun; Ye, Xianlin; Chen, Xiaoyu; Zhang, Fangyu (Symmetry (20738994), 2026)