WebBrain: Learning to Generate Factually Correct Articles for Queries by Grounding on Large Web Corpus. - Hongjing Qian; Yutao Zhu 001; Zhicheng Dou; Haoqi Gu; Xinyu Zhang 019; Zheng Liu 011; Ruofei Lai; Zhao Cao; Jian-Yun Nie; Ji-Rong Wen (CoRR, 2023)