About

I am an M.S. student in Industrial Engineering at UNIST, advised by Prof. Yongjae Lee in the Financial Engineering Lab.

Research

My research focuses on AI for finance, spanning decision-focused learning, robust optimization, financial event forecasting, and uncertainty quantification for time series.

  • AI for Finance
  • Decision-Focused Learning
  • Robust Optimization

Publications

ICAIF 2026

From Hindsight to Foresight: Adapting Reusable Reasoning Structures from Recurring Financial Events

Sangjin Jin†, Junhyeong Lee†, Daehee Han†, Kangmin Kim, Suhwan Park, Seonghun Jeong, Daekyung Park, Lukasz Szpruch, Zhangyang Wang, Chanyeol Choi, Youngjun Kwak*, Yongjae Lee*

In collaboration with KakaoBank.

CIKM 2026

Retrieval-Corrected Conformal Prediction for Time Series

Sangjin Jin, Kangmin Kim, Junhyeong Lee, Yongjae Lee*

ICML 2026

Decision-Focused Learning via Tangent-Space Projection of Prediction Error

Junhyeong Lee, Sangjin Jin, Yongjae Lee*

ICAIF 2025 · Workshop

LLM-guided Factor Generation for Explainable Coal Price Forecasting

Sangjin Jin†, Suhwan Park†, Kangmin Kim, Inwoo Tae, Juchan Kim, Hoyoung Lee, Junhyeong Lee, Yongjae Lee*

ICAIF ’25 Workshop on Rethinking Financial Time-Series: Foundations, Frontiers, and Future Directions.

Projects

KakaoBank · 2026

Multi-agent debate for financial decision-making

Multi-agent debate for financial decision prediction and reliability improvement.

LG AI Research · 2026

Investment-style-customized LLMs

Investment-style-customized language models and market representation for EXAONE-BI.

Collaborative projects at UNIST Financial Engineering Lab. Lab projects

Education & Honors

2026

Deputy Prime Minister and Minister of Science and ICT Award

Presented “Recovering Predictions without Regretting Decisions: A Cone-constrained Prediction Recovery for Decision-Focused Learning”.

2026

Excellence Award

2026 Land and Transport Data Utilization Competition

Korea Transportation Safety Authority Award

2026

B.S. in Industrial Engineering, UNIST

Graduated summa cum laude.

2025

Silver Prize

National Industry-Academia Convergence Project Lab Contest

2025

Silver Prize

4th UNIST–KAIST–POSTECH Data Science Competition

Interested in collaborating?

I welcome opportunities to collaborate on research in AI for finance. Please feel free to reach out.

sj.jin@unist.ac.kr