@inproceedings{zhan-etal-2026-deep, title = "Why Your Deep Research Agent Fails? On Hallucination Evaluation in Full Research Trajectory", author = "Zhan, Yuhao and Fan, Tianyu and Huang, Lingxuan and Guo, Zirui and Huang, Chao", editor = "Wang, Yimu and Choi, Yee Man and Wu, Di and Ouyang, Siqi and Azadani, Mozhgan Nasr and Fung, Yi R. (May)", booktitle = "Proceedings of the 1st Workshop on Grounding Language Models: Learning Faithfully and Efficiently ({G}round{LM} 2026)", month = oct, year = "2026", address = "Budapest, Hungary", publisher = "Association for Computational Linguistics", url = "https://aclanthology.org/2026.groundlm-1.73/", pages = "1016--1048", ISBN = "979-8-89176-478-1" }