Dong-Hun Choi

Dong-Hun Choi 최동훈

AI/ML Researcher @ Ajou University LAMDA Lab

About

Research Focus
ECG Signal Processing, Time-Series Analysis, LLM Agents
Education
M.S. in AI @ Ajou Univ. (2024-2026)
Interests
Biomedical Signal Processing, Multi-Agent Systems, MLOps
Lab
LAMDA Lab

Publications

Dual-FreqDAE: Frequency-Aware Dual-Branch Transformer Autoencoder for ECG Denoising

Submitted to Biomedical Signal Processing and Control (2025) • 1st Author

Time-frequency dual-branch architecture with FAN-based Transformer for robust mixed-noise ECG denoising. Patent filed: 10-2025-0014670

[preprint]

TCN-Transformer for ECG Imputation

KSC 2024 • Paper Competition Award

Extended TCN receptive field + Self-Attention for quasi-periodic pattern interpolation in ECG signals.

[paper]

DiTSA-based ECG Missing Value Restoration

KICS 2025

Dilated Temporal Self-Attention for robust long-term missing value restoration.

[paper]

LangGraph-based LLM Agent for AI Copyright Infringement

KICS 2025

Multi-agent system design for generative AI copyright dispute resolution.

[paper]

Projects

Skills

ML/DL

  • PyTorch
  • TensorFlow
  • Transformers
  • Signal Processing

LLM/Agents

  • LangChain
  • LangGraph
  • RAG Systems
  • vLLM

MLOps/Infra

  • Docker
  • MLflow
  • FastAPI
  • GitHub Actions

Experience

🎓 Education

  • M.S. AI, Ajou Univ. (2024-2026)
  • B.S. SW, Ajou Univ. (2018-2024)

🏆 Awards

  • KSC 2024 Paper Award
  • Ajou SOFTCON Awards
  • SW Challenge Award

📜 Certifications

  • OPIC IH
  • SQLD / ADsP
  • AICE Associate

Contact

$ cat contact.txt