Lunit, Seoul
Mar 2025 - Present
AI Research Scientist
- Deceptive Grounding: conceived and led a first-author study of entity-attribution failure in clinical RAG, from benchmark design and software through formal analysis, production validation, visualization, and writing.
- Medical-model post-training and evaluation: own training and evaluation pipelines for large medical language models, including benchmark construction, retrieval, knowledge-grounded reasoning, and capability-retention analysis.
- Self-distillation: led comparative evaluation of self-distillation fine-tuning for medical-model adaptation and its integration into the post-training workflow.
- Pathology foundation models: develop self-supervised Vision Transformers for whole-slide imaging, studying positional encoding, optimization, and transfer at scale.
- Distributed inference: built fault-tolerant Python and NCCL orchestration for clinical-scale whole-slide image collections.
- Research culture: lead recurring paper-study sessions and write long-form technical articles on post-training, reasoning models, and evaluation.
Public result: Deceptive Grounding was evaluated across 13 models and 740 production drug-disease pairs. Read the preprint.