@inproceedings{peng-etal-2026-incentivizing, title = "Incentivizing In-depth Reasoning over Long Contexts with Process Advantage Shaping", author = "Peng, Miao and Shen, Weizhou and Chen, Nuo and Li, Chenliang and Yan, Ming and Li, Jia", 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.1306/", pages = "26201--26228", ISBN = "979-8-89176-395-1" }