@inproceedings{gao-etal-2026-guitester, title = "{GUIT}ester: Enabling {GUI} Agents for Exploratory Defect Discovery", author = "Gao, Yifei and Wu, Jiang and Chen, Xiaoyi and Yang, Yifan and Cui, Zhe and Ma, Tianyi and Zhang, Jiaming and Sang, Jitao", editor = "Liakata, Maria and Moreira, Viviane P. and Zhang, Jiajun and Jurgens, David", booktitle = "Findings of the {A}ssociation for {C}omputational {L}inguistics: {ACL} 2026", month = jul, year = "2026", address = "San Diego, California, United States", publisher = "Association for Computational Linguistics", url = "https://preview.aclanthology.org/ingest-acl/2026.findings-acl.946/", pages = "18956--18978", ISBN = "979-8-89176-395-1" }