Zijin Hong Hao Wu 0070 Su Dong 0002 Junnan Dong Yilin Xiao 0002 Yujing Zhang Zhu Wang 0016 Feiran Huang Linyi Li Hongxia Yang Xiao Huang 0001 Benchmarking LLMs' Mathematical Reasoning with Unseen Random Variables Questions. 31023-31031 2026 AAAI https://doi.org/10.1609/aaai.v40i37.40362 conf/aaai/2026 db/conf/aaai/aaai2026.html#HongWDDXZWHLYH26