National University of Singapore; The Hong Kong University of Science and Technology; École Polytechnique Fédérale de Lausanne
Miao Xiong, Zhiyuan Hu, Xinyang Lu, YIFEI LI, Jie Fu, Junxian He, Bryan Hooi
uncertainty quantification;uncertainty estimation;calibration;failure prediction;large language models;black-box language models;LLM evaluation
Can LLMs Express Their Uncertainty? An Empirical Evaluation of Confidence Elicitation in LLMs