Projects
Research and engineering projects.
Projects and research engineering. Selected works appear on the home page.
2024–2025 — AI/ML Engineering (Upstage AI Lab)
Upstage AI Lab — AI/ML Engineering Competitions (5 tracks)
Completed 5 ML engineering competitions across diverse domains:
- 🥇 1st / 39 Chemical-Process Anomaly Detection — Unsupervised fault detection on 52-dimensional industrial sensor data. F1 0.90 / Acc 0.94
- 2nd / 24 Text-Based Sentiment Analysis — Aspect-based sentiment on Korean social media. F1 0.72
- 🥉 3rd / 53 Scientific RAG QA — Science retrieval & QA (SBERT, BGE-M3, BM25, FAISS). mAP 0.84
- 🥉 3rd / 48 Document-Type Classification — 17-class doc image classification. Macro-F1 0.92
- 🥉 3rd / 19 Tabular Prediction: Used Car Price — (LightGBM, XGBoost, CatBoost). RMSE 13,760
Common stack: PyTorch · HuggingFace · Hydra · W&B · Optuna · FAISS · LangChain
LLM-Based Parenting Coach — Dialogue Quality Assessment & Plan Recommendation
Multi-step LLM pipeline for parent-child dialogue analysis. Family persona generation → dialogue simulation → 4-D quality scoring → personalized plan recommendation via multi-LLM ensemble (GPT-4o, Claude, Gemini, Llama).
Stack: LangChain · Hydra · W&B · OpenAI · Anthropic · Google AI · Ollama
Walk-into-AI — MLOps Pipeline Template
Production-ready MLOps template with Hydra + W&B + DVC integration. GitHub
2022–2024 — Startup & Industry (ACTNOVA)
ACTNOVA — AI Behaviour Analytics Platform
Co-founded a NeuroAI startup (₩4.3B pre-Series A). Built YOLOv8 + XGBoost pipeline for automated behavioral phenotyping; reduced expert analysis time by 70%. Standardized multi-lab data pipeline and annotation platform across KAIST, MIT, and Broad Institute.
2021 — Neuroscience × Art
Project Doona Bae
Behavioral and fMRI study of actress Doona Bae's empathic abilities, published in the book Actress Doona Bae. Examined neural correlates of screen performance and empathic resonance.
2018 — Vision AI
Grand Prize (DDSA) NAS-Optimized CNN for Driver Monitoring with XAI
Neural Architecture Search for real-time driver drowsiness detection. Integrated Grad-CAM explainability for regulatory compliance. Won Grand Prize (DDSA) + Encouragement Prize (ETRI).
