ReTRE: Benchmarking LLM Transfer Robustness with Structure-Preserving Variants. - ZhongDong Li; Weijie Shi; Yue Cui; Haolun Ma; Yuanjun Liu 001; Jiawei Li; An Liu 002; Jia Zhu 003; Jiajie Xu 001 (ACL (1), 2026)