A Voxel-based Grid Coordinate for Virtual Object Positioning in Outdoor Mobile Augmented Reality This work explores human-friendly spatial referencing for outdoor AR. This work was presented at IEEE VR 2026 Posters. Generative Spatial Grounding in Free Space A framework for restoring frame of reference in free-space human-robot communication. Multimodal LLM Visual Reasoning Enhancing multimodal visual reasoning with chain-of-thought based inference. Medical AI for Respiratory Sound and CKD Prediction Research on pediatric respiratory sound classification and transformer-based CKD prognosis prediction.