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I build AI systems that go from research to production. Currently an AI Research Engineer at Gractor, designing and deploying computer vision pipelines for smart city infrastructure. Previously published 2 first-author papers on semi-supervised semantic segmentation at Korea University's Pattern Recognition & ML Lab (MSc in AI, advised by Prof. Seong-Whan Lee), and before that shipped 10+ full-stack products as a software engineer.
I care about closing the gap between what works in a paper and what works at scale.
| Paper | Venue | Links |
|---|---|---|
| CW-BASS: Confidence-Weighted Boundary Aware Learning for Semi-Supervised Semantic Segmentation | IJCNN 2025 | Paper · Code · Project Page |
| FARCLUSS: Fuzzy Adaptive Rebalancing and Contrastive Uncertainty Learning for Semi-Supervised Semantic Segmentation | Neural Networks 2026 | Paper · Code · Project Page |
Both papers address the core challenge of learning with limited labels — reducing pseudo-label noise, handling class imbalance, and sharpening boundary predictions. CW-BASS achieves 65.9% mIoU on Cityscapes with only 100 labeled images. FARCLUSS introduces fuzzy pseudo-labeling and prototype-based contrastive regularization, setting new baselines on Pascal VOC and Cityscapes.
Research
| Project | Area | Links |
|---|---|---|
| Backdoor Attacks on CLIP (BadCLIP) | Adversarial ML / Multimodal | Code · Slides |
| Semantic-Aware Multi-Label Adversarial Attacks | Adversarial ML | Code · Slides |
| Semi-Supervised Segmentation Baselines (UniMatch + ST++) | Semi-Supervised Learning | Code · Slides |
| Monocular Depth Estimation (Depth Anything V2) | 3D Vision / Autonomous Driving | Code |
| Effective Context Length of LLMs (STRING) | NLP / Transformers | Code · Slides |
Software
| Project | What it does | Stack |
|---|---|---|
| AgriLet | AI crop disease detection + agricultural education platform | React, TypeScript, Express, Prisma |
| eLearn | E-learning platform with 20+ subjects, analytics, progress tracking | React, TypeScript, Express, Prisma |
| 3D Digital Twin | Real-time traffic monitoring with 3D visualization and edge AI | React, Three.js, FastAPI |
ML/CV: PyTorch · TensorFlow · OpenCV · CUDA · ONNX · MLflow · NVIDIA Jetson · Docker
Software: React · TypeScript · Node.js · Express · FastAPI · Three.js · Prisma · PostgreSQL
Languages: Python · C++ · C# · Java · Bash
AI Research Engineer · Gractor · Sept 2025 – present
Production CV systems for smart city AIoT; real-time inference on edge devices.
AI Research Engineer · Korea University · Aug 2023 – Aug 2025
2 first-author publications; segmentation models outperforming baselines by up to 25% mIoU; autonomous driving patent filed.
AI Software Engineer · GliTech · Jan 2019 – Jan 2021
10+ shipped fullstack products; led engineering for AI-powered applications serving hundreds of users.
MSc in Artificial Intelligence · Korea University · 2023–2025
Global Korea Scholarship · Advisor: Prof. Seong-Whan Lee