Welcome to My Portfolio!
IT'S NICE TO MEET YOU
Changhyun Lee

About Me

Changhyun Lee

Changhyun Lee

B.S. in Artificial Intelligence, Yonsei University

Download CV

My research focuses on applied machine learning for natural language processing and computer vision, with particular attention to developing retrieval-augmented generation methods and improving image recognition systems. I am also interested in music information retrieval as a way to explore creative applications of AI.

Projects

My hands-on experience with AI-driven services and creative media.

AI Video Production

AI-based Video Production

Created short-form and long-form videos using generative AI tools like Midjourney and Capcut during the AX Practical Workshop.

RAG Service

RAG Service Implementation

Designed and implemented a Retrieval-Augmented Generation (RAG) service with a question-answering chatbot using Python and Langchain.

Experience

My practical and leadership experiences.

Prompt Engineering

Prompt Engineering

Modu Research

BYTE THE WORLD

BYTE THE WORLD

Department Food Enthusiast Group

My Journey

Service, Extracurricular Activities.

  • Student Council

    2024 - Present

    AI Dept. Student Council

    As the Head of the Planning Division, I lead event planning and execution for the AI department, including organizing the 2025 Yonsei University Festival booth.

  • Volunteering

    May 2025

    Volunteering - Wellesley-Yonsei Buddy Program

    Supported Wellesley College students participating in the Korean Program at Yonsei University, assisting with language and cultural exchange.

  • DJing at Yonsei

    May 2025

    EAT in Yonsei Festival: Scent of Blue

    Performed a live DJ set on Yonsei University's Baekyang-ro under the theme EAT Play Love, specializing in House music.

  • DJing in Itaewon

    July 2025

    EAT the Best Vol. 19: Curtain Call

    Played a Tech House set for the 24th Menti Party in Itaewon lovehouse, showcasing advanced transitions and track curation.

Skills & More Activities

Other skills, hobbies, and passions.

Clubs & Activities

  • POWERS - Yonsei Badminton Club: Active member of the official university badminton club, participating in club events.
  • ABC - Yonsei AI Dept. Band Club: Performed as an electric guitarist, contributing to department concerts and collaborative music projects.

Skills & Hobbies

  • Computer Languages: C/C++, Python
  • Languages: Korean, English
  • Hobbies: DJing, Music Production (Logic Pro, GarageBand), Playing Badminton, Electric Guitar, Lego Assembly, Travel Planning, and Creative Design (AI-generated visuals).

Contact