Zhao, Yi, Siqi Wang, and Jing Li. 2026. “LaF-GRPO: In-Situ Navigation Instruction Generation for the Visually Impaired via GRPO With LLM-As-Follower Reward”. Proceedings of the AAAI Conference on Artificial Intelligence 40 (41):34994-2. https://doi.org/10.1609/aaai.v40i41.40804.