Gihun Cho

Machine Learning Engineer

Machine learning engineer specializing in medical AI, radiology report generation, and clinical evaluation metrics. Currently pursuing M.S. in Bioengineering at Seoul National University.

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Education

M.S. in Bioengineering

Seoul National University • Seoul, Korea • Mar. 2024 – Feb. 2026

GPA: 3.97/4.30

B.S. in Biomedical Engineering

Hanyang University • Seoul, Korea • Mar. 2018 – Feb. 2024

GPA: 4.09/4.50

Department of Software Development

Sunrin Internet Highschool • Seoul, Korea • Mar. 2015 – Feb. 2018

17th President of Web Development Club "IWOP"

Projects

#EMNLP2025
#evaluation
#github
#metric
#published
CREPE
A lightweight, clinically-aware metric for the evaluation of machine-generated chest X-ray reports
#evaluation
#metric
#github
#published
#EMNLP2025
rrg-metric
A GitHub repository for evaluating Radiology Report Generation (RRG) with multiple metrics
#evaluation
#metric
#github
Multimodal DDx
Evaluation of various LLM/VLMs with multimodal clinical data (e.g., images, patient history, findings text)
#evaluation

Publications

CREPE: Rapid Chest X-ray Report Evaluation by Predicting Multi-category Error Counts

EMNLP 2025 Main (Poster), 1st author

A lightweight, clinically-aware metric for evaluating machine-generated chest X-ray reports with 280x speed improvement.

Evaluating Open and Closed-Source Language and Vision-Language Models for Multicenter Image-Based Diagnosis in Radiology

RSNA 2024 Cutting-Edge Research (Abstract), 1st author (equal contribution)

Comparative study of LLM/VLM performance with multimodal clinical data and reader performance evaluation.

SeamXSim: Seamless-textured virtual colonoscopy simulator via unpaired long-term video translation

Computers in Biology and Medicine 2025 (Under review), 2nd author

Virtual colonoscopy simulation using advanced video translation techniques for medical training.

Research Experience

Innovative Radiology AI Lab. (iRAIL)

Seoul National University • Seoul, Korea • Jul. 2023 – Present

Advisor: Chang Min Park, M.D., Ph.D.

Master's student. Clinical evaluation and benchmarks for medical LLM/VLMs. Focus on radiology report generation and evaluation metrics.

Computational Neuroimage Analysis (CNA) Lab

Hanyang University • Seoul, Korea • Jan. 2023 – Jun. 2023

Advisor: Jong-Min Lee, Ph.D.

Research intern. 3D Brain MRI preprocessing & 2D Brain MRI modality classification using modified ResNet.

Smart Ubiquitous Healthcare (SUH) Lab.

Hanyang University • Seoul, Korea • Jul. 2022 – Aug. 2022

Advisor: In Young Kim, M.D., Ph.D.

Research intern. Development of ECG, PPG signal monitor with peak detection algorithms for healthcare applications.

Career

Android Developer

Computational intelligence & Neural Engineering (CoNE) Lab.

Seoul, Korea • Aug. 2023 – Dec. 2023

Development of an Android backend app utilizing biometric signals (i.e., EEG) for neural engineering applications.

Metaverse Platform Developer

Devmate Co., Ltd.

Seoul, Korea • Dec. 2021 – Mar. 2022

Development of metaverse maps in ZEPETO via Unity, creating immersive virtual environments and interactive experiences.

Awards

Best Oral Presentation Award Bronze Prize

2024 KoSAIM Annual Meeting • 2024

Research Scholarship for Masters Studies

National Research Foundation (NRF) • 2024