Attack and defense against deep reinforcement learning-based agent for discrete domains: Application in distribution network reconfiguration. - Yi Su 007; Zhuocen Dai; Jiashen Teh; Olatunji Ahmed Lawal; Bilkisu Jimada-Ojuolape; Xiao Liu; Xiangwu Xiao; Lijuan Li (Expert Syst. Appl., 2026)