@inproceedings{li-etal-2026-whats-missing, title = "What{'}s Missing in Screen-to-Action? Towards a {UI}-in-the-Loop Paradigm for Multimodal {GUI} Reasoning", author = "Li, Songze and Guo, Xiaoke and Liu, Tianqi and Yi, Biao and Gong, Zhaoyan and Liu, Zhiqiang and Chen, Huajun and Zhang, Wen", 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.876/", pages = "17674--17690", ISBN = "979-8-89176-395-1" }