
Sunghyun Ahn
skd@yonsei.ac.kr
소개
ML Research Engineer specializing in video understanding, deep learning, and scalable evaluation systems. Experienced in R&D for video anomaly detection, medical image segmentation, and end-to-end ML model evaluation platforms.
Graduated with honors from Yonsei University (M.S.) and The Catholic University of Korea (B.S.)
Published as first author at premier international conference, and co-authored numerous publications
Served as a peer reviewer for renowned international journals, including IEEE Transactions on Image Processing (TIP)
경력
PYLER
Seoul, Korea
ML Research Engineer (Technical Research Personnel)
Jun. 2025 - 현재
Developed end-to-end ML model evaluation platforms
Benchmarking: Led qualitative and quantitative evaluation and benchmarking of frontier models (e.g., Gemini, GPT), delivering actionable research insights
Visualization: Built a web-based research visualization dashboard enabling result exploration, demos, and researcher collaboration
Scalable Infrastructure: Architected scalable research infrastructure, including distributed LLM-based QA with Ray, a Feast-based video feature store, and an end-to-end video evaluation pipeline
Conducted research on video understanding, focusing on video scene segmentation and video RAG
Data Engineering LAB
Seoul, Korea
AI Researcher
Feb. 2022 - Apr. 2025
Conducted research on deep learning, medical image segmentation, and video anomaly detection
Graduation thesis: VideoPatchCore: An Effective Method to Memorize Normality for Video Anomaly Detection
Advisor: Prof. Sanghyun Park (sanghyun@yonsei.ac.kr)
Computer Vision and Machine Intelligence LAB
Seoul, Korea
Undergraduate Research Assistant
Jun. 2021 - Jan. 2022
Conducted research on object detection for smart farm
Advisor: Prof. Hochul Kang (hckang19@catholic.ac.kr)
학력
Yonsei University
Seoul, Korea
Computer Science
Feb. 2023 - Jan. 2025
M.S. in Computer Science
GPA: 4.33 / 4.5
The Catholic University of Korea
Seoul, Korea
Computer Science
Feb. 2021 - Jan. 2023
B.S. in Computer Science
GPA: 4.17 / 4.5 (Rank: 4/51)
기술
Academic services — Reviewer
Peer reviewer for international journals and conferences
IEEE Transactions on Image Processing (TIP)
Pattern Recognition (PR)
AAAI Conference on Artificial Intelligence (AAAI)
Domains: computer vision, video anomaly detection
Tools and Frameworks
ML - PyTorch, vLLM, Ray, Feast
Web and Backend - Django, Node.js, Spring, Vercel
Utilities - LaTeX
Languages
Korean - Native
English - Conversational and Academic presentation
수상
Best Presentation Paper Award
KIISE, Korea
Awarded for presenting a paper on LVLM-based video anomaly detection at the Korea Software Congress
Jan. 2025
Academic Excellence Award
Catholic Univ.
Graduated in the top 8% of the class and received magna cum laude honors in recognition of academic excellence
Jan. 2023
Grand Award
Catholic Univ.
First place in the Capstone Design Competition for an AI-based food expiration-date management chatbot
Sep. 2022
Top 9 (Finalist)
FSI, Korea
Top 9 finalist in a financial security idea competition for a GAN-based palmprint authentication system
Jul. 2022
프로젝트
Scene-Aware Summarization for Long & Multi-Video RAG
PYLER
Poster presentation
Sep. 2025 - Nov. 2025
Accepted at NVIDIA GTC 2026, San Jose, CA
Enhanced video retrieval performance through scene-based video indexing
Conducted Video QA experiments comparing uniform segmentation and scene-based segmentation on long-video benchmark
AI-Powered Smart Fridge Chatbot
Catholic Univ.
Team project
Jan. 2022 - Apr. 2022
Grand Prize in Capstone Design Contest (Top project)
Led the Fridge team; designed and implemented an end-to-end AI system
Developed a vision-based AI chatbot for automatic food expiration-date recognition and management
Conducted industry interviews with E-mart (Shinsegae Group) to validate real-world adoption scenarios
자격증
Certificate of Reviewing
Elsevier, UK
Pattern Recognition
Sep. 2024
출판물
International - As First Author
Feb. 2026
AnyAnomaly: Zero-shot Customizable Video Anomaly Detection with LVLM - IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), Arizona, USA (2026)
VideoPatchCore: An Effective Method to Memorize Normality for Video Anomaly Detection - Asian Conference on Computer Vision (ACCV), Hanoi, Vietnam (BK list, IF=1) (2024)
Making Anomalies More Anomalous: Video Anomaly Detection Using a Novel Generator and Destroyer - IEEE Access (SCI(E)) (2024)
Dual Stream Fusion U-Net Transformers for 3D Medical Image Segmentation - IEEE International Conference on Big Data and Smart Computing (BigComp), Bangkok, Thailand (2024)
Unified Video Anomaly Detection Model for Detecting Different Anomaly Types - IEEE/CVF Winter Conference on Applications of Computer Vision (WACV), Arizona, USA (2026)
Authors: Kijung Lee, Youngwan Jo, Sunghyun Ahn, and Sanghyun Park
AMoE-BTS: An Adaptive Mixture of Experts for Clinical Decision Support in Multimodal Brain Tumor Segmentation - ACM/SIGAPP Symposium On Applied Computing (SAC), Thessaloniki, Greece (BK list, IF=1) (2026)
Authors: Jeongeun Kim, Youngwan Jo, Sunghyun Ahn and Sanghyun Park
GranQ: Efficient Channel-wise Quantization via Vectorized Pre-Scaling for Zero-Shot QAT - ACM/SIGAPP Symposium On Applied Computing (SAC), Thessaloniki, Greece (BK list, IF=1) (2026)
Authors: Inpyo Hong, Youngwan Jo, Hyojeong Lee, Sunghyun Ahn, Kijung Lee and Sanghyun Park
MDVAD: Multimodal Diffusion for Video Anomaly Detection - Pacific-Asia Conference on Knowledge Discovery and Data Mining (PAKDD), Sydney, AUS (BK list, IF=1) (2025)
Authors: Kijung Lee, Youngwan Jo, Sunghyun Ahn, and Sanghyun Park
Advanced Knowledge Transfer: Refined Feature Distillation for Zero-Shot Quantization in Edge Computing - ACM/SIGAPP Symposium On Applied Computing (SAC), Sicily, Italy (BK list, IF=1) (2025)
Authors: Inpyo Hong, Youngwan Jo, Hyojeong Lee, Sunghyun Ahn, and Sanghyun Park
GitHub
Tech Blog
Google Scholar
• https://scholar.google.co.kr/citations?user=mKchEwoAAAAJ&hl=ko