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Cooperation
Comprehensive evaluation of large language models abstention capability for unanswerable questions
HAN Tailai, TAN Chuanyuan, SHAO Wenbiao, XIONG Hao, CHEN Wenliang
Journal of Tsinghua University(Science and Technology) . 2026, (
5
): 967 -976 . DOI: 10.16511/j.cnki.qhdxxb.2025.21.051
