Systematic monitoring model for zonal deformation of ultra-high arch dams driven by second-order idiosyncratic graph structures - Enhua Cao; Jianfeng Xue; Yangjia Li; Haotian Chang; Zhaoqing Fu; Cong Hu; Rongyao Yuan; Yangtao Li; Shaopei Hu; Tengfei Bao (Engineering Structures, 2026)