Preprint Open access
LG-VLN: A Zero-Shot Vision-and-Language Navigation Framework with LangGraph State Orchestration
Continuous-environment vision-and-language navigation (VLN-CE) requires interpreting natural-language instructions in unseen 3D environments and executing continuous low-level actions. Existing methods often depend on LiDAR, panoramic cameras, or extra sensors; separate geometric-mapping and semantic-navigation visual …