Ph.D Students
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Gun Il Kim 김건일 (PhD student since September 2021)
PhD Major: Business AI Big Data Analytics
Master Major: Business AI Big Data Analytics
Undergraduate Major: Degree in International Studies in Business and Economics
Email: kim_gunil_94@yonsei.ac.kr
Research Area: Natural Language Processing, Efficient AI, Multi-modal AI
Publications & Awards:
Enhancing 3D Tooth Segmentation Using Curvature-FPS Point Cloud Downsampling, Sunga Hwang, Gun Il Kim, Jungkyu Shin, Yo Han Lee, Yong Woon Shin, Wooae Ki and Beakcheol Jang, IEEE Access, November 2025.
UniRAG: A Unified RAG Framework for Knowledge-Intensive Queries with Decomposition, Break-Down Reasoning, and Iterative Rewriting, Gun Il Kim, Jongwook Kim and Beakcheol Jang, Findings of ACL: EMNLP, November 2025.
Efficient Compressing and Tuning Methods for Large Language Models: A Systematic Literature Review, Gun Il Kim, Sunga Hwang, Beakcheol Jang, ACM Computing Surveys, (IF 2024: 28.0, ranked 1/143 in Computer Science Theory & Methods), May 2025.
COVID-19 Policies and Payment Delays: Panel Data Insights from Korea's Food Industry, Minkyoung Kim, Gun Il Kim, Yo Han Lee and Beakcheol Jang, International Conference on Artificial Intelligence in Information and Communication (ICAIIC), February 2025.
An Approach on Improving the Recommender System: Predicting Movie Genres Based on Plot Summaries, Gun Il Kim, Jae Heon Kim, Minkyoung Kim, Taekyoung Kwon, and Beakcheol Jang, International Conference on Artificial Intelligence in Information and Communication (ICAIIC), February 2024.
Classification of mathematical test questions using machine learning on datasets of learning management system questions, Gun Il Kim, Sungtae Kim and Beakcehol Jang, PLOS ONE, October 2023. (IF 2021: 3.752)
HSGA: A Hybrid LSTM-CNN Self-Guided Attention to predict the future diagnosis from discharge narratives, Gaspard Harerimana, Gun Il Kim, Jong Wook Kim, and Beakcheol Jang, IEEE Access, September 2023. (IF 2021: 3.476)
Petroleum price prediction with CNN-LSTM and CNN-GRU using Skip-Connection, Gun Il Kim and Beakcheol Jang, Mathematics, January 2023. (IF 2021: 2.592)
Deep similarity analysis and forecasting of actual outbreak of major infectious diseases using Internet-sourced data, Beakcheol Jang, Yeongha Kim, Gun Il Kim, and Jong Wook Kim, Elsevier Journal of Biomedical Informatics (JBI), September 2022. (IF 2021: 8.0, JCR IF Top 10%)
Min Kyoung Kim 김민경 (Integrated PhD student since September 2021)
PhD Major: Business AI Big Data Analytics
Master Major: Business AI Big Data Analytics
Undergraduate Major: Economics
Email: minky@yonsei.ac.kr
Research Area: Deep Learning, Data Mining, Graph Neural Networks
Publications & Awards:
Accurate total consumer price index forecasting with data augmentation, multivariate features, and sentiment analysis: A case study in Korea, In Jae Seo, Minkyoung Kim and Beakcheol Jang, PLOS ONE, May 2025. (IF 2022: 3.7)
Forecasting epidemic spread with recurrent graph gate fusion transformers, Minkyoung Kim, Jae Heon Kim, and Beakcheol Jang, IEEE Journal of Biomedical Health Informatics (JBHI), February 2025. (IF 2023: 6.7, JCR IF Top 10%)
COVID-19 Policies and Payment Delays: Panel Data Insights from Korea's Food Industry, Minkyoung Kim, Gun Il Kim, Yo Han Lee and Beakcheol Jang, International Conference on Artificial Intelligence in Information and Communication (ICAIIC), February 2025.
An approach on improving the recommender system: Predicting movie genres based on plot summaries, Gun Il Kim, Jae Heon Kim, Minkyoung Kim, Taekyoung Kwon, and Beakcheol Jang, International Conference on Artificial Intelligence in Information and Communication (ICAIIC), February 2024.
Yo Han Lee 이요한 (PhD student since March 2024)
PhD Major: Business AI Big Data Analytics
Master Major: Mathematics
Undergraduate Major: Mathematics
Email: utopiamath@yonsei.ac.kr
Research Area: Big Data Analytics, Deep Learning
Publications & Awards:
Enhancing 3D Tooth Segmentation Using Curvature-FPS Point Cloud Downsampling, Sunga Hwang, Gun Il Kim, Jungkyu Shin, Yo Han Lee, Yong Woon Shin, Wooae Ki and Beakcheol Jang, IEEE Access, November 2025.
Efficient prompt engineering for Corrective RAG specialized for benchmarking Massive Multitask Language Understanding dataset, Yo Han Lee and Beakcheol Jang, The institute of Eletronics and Information Engineers (IEIE), June 2025. (KCI)
Classification of Fashion E-commerce Products using ResNet-BERT Multi-modal Deep Learning and Transfer Learning Optimization, In Jae Seo, Yo Han Lee and Beakcheol Jang, PLOS ONE, May 2025. (IF 2022: 3.7)
COVID-19 Policies and Payment Delays: Panel Data Insights from Korea's Food Industry, Minkyoung Kim, Gun Il Kim, Yo Han Lee and Beakcheol Jang, International Conference on Artificial Intelligence in Information and Communication (ICAIIC), February 2025.
Jin Seok Yang 양진석 (PhD student since March 2021)
PhD Major: AI-FinTech
Master Major: Business Administration
Undergraduate Major: Business Administration
Works at Fount Investment
Email: finengineer@yonsei.ac.kr
Research Area: Natural Language Processing, Information Retrieval, Alternative Data Analytics
Publications & Awards:
Climate policy uncertainty and its impact on real estate market dynamics: A sectoral and regional analysis, Chulyoung Cho, Jinseok Yang and Beakcheol Jang , PLOS ONE, October 2024. (IF 2022: 3.7)
Heterogeneous macroeconomic factors' effects on stocks across sizes, styles, and sectors in the South Korean market, Chulyoung Cho, Jinseok Yang, and Beakcheol Jang, PLOS ONE, April 2024. (IF 2022: 3.7)
Chul Young Cho 조철영 (PhD student since March 2021)
PhD Major: AI-Fintech
Master Major: AI-FinTech
Undergraduate Major: Computer Engineering
Works at KOSCOM
Email: ccykoscom@gmail.com
Research Area: Deep Learning, XAI, Time Series Forecasting in Finance, BlockChain (Smart Contract)
Publications & Awards:
Climate policy uncertainty and its impact on real estate market dynamics: A sectoral and regional analysis, Chulyoung Cho, Jinseok Yang and Beakcheol Jang , PLOS ONE, October 2024. (IF 2022: 3.7)
Heterogeneous macroeconomic factors' effects on stocks across sizes, styles, and sectors in the South Korean market, Chulyoung Cho, Jinseok Yang, and Beakcheol Jang, PLOS ONE, April 2024. (IF 2022: 3.7)
Jung Hwa Lee 이정화 (PhD student since September 2021)
PhD Major: Business AI Big Data Analytics
Master Major: Computer Science (Distributed Computing)
Undergraduate Major: Computer Engineering
Works at AI Lab of SK Telecom
Email: jhwa.lee@yonsei.ac.kr
Research Area: Deep Learning, Multi-modal AI, XAI
Publications & Awards:
Autoregressive Decoder with Extracted Gap Sessions for Sequential/Session-based Recommendation, Jaewon Chung, Jung Hwa Lee, and Beakcheol Jang, IEEE Access, July 2023.(IF 2021: 3.476)
Chang Soo Kim 김창수 (PhD student since March 2022)
PhD Major: Strategic Management of Big Data Analytics
Master Major: Information Processing
Undergraduate Major: Computer Engineering
Works at CCmedia Service Co.,Ltd
Email: moon0529@yonsei.ac.kr
Research Area: Big Data, Deep Learning, Artificial Intelligence, Recommendation System
Woo Sung Jang 장우성 (PhD student since September 2022)
PhD Major: Integrative Medicine - Digital Healthcare
Master Major: Artificial Intelligence
Undergraduate Major: Mechanical Engineering
Works at CDO - AI BigData of LG Electronics
Email: jws19940212@gmail.com
Research Area: AI for Healthcare and Life Sciences
Publications & Awards:
Enhancing Medical Cross-Modal Hashing Retrieval using Dropout-Voting Mixture-of-Experts Fusion, Jae Won Ahn, Woo Sung Jang, and Beakcheol Jang, In Proceedings of the ACM CIKM International Workshop on Multimodal Generative Search and Recommendation, November 2025.
Chang Reung Park 박창릉 (PhD student since March 2023)
PhD Major: Business AI Big Data Analytics
Master Major: Control Instrumentation Engineering
Undergraduate Major: Control Instrumentation Engineering
Works at KIST
Email: crpark325@gmail.com
Research Area: Natural Language Processing (NLP), Big Data Platform
Publications & Awards:
COVID-19 outbreak prediction using Seq2Seq+Attention and Word2Vec Keyword time series data, Yeongha Kim, Chang-Reung Park, Jae-Pyoung and Beakcheol Jang, PLOS ONE, April 2023. (IF 2021: 3.752)
Yeon Kyung Kang 강연경 (PhD student since March 2023)
PhD Major: Strategic Management of Big Data Analytics
Master Major: Software Engineering
Undergraduate Major: Chemistry
Works at Korea Mouse Phenotyping Center
Email: whachozang@yonsei.ac.kr
Research Area: Biomedical Text Mining, Deep Learning, Computational Biology
Jin Hee Park 박진희 (PhD student since March 2023)
PhD Major: Strategic Management of Big Data Analytics
Master Major: Software Convergence
Undergraduate Major: Computer Science
Works at AI Video Analysis Research Team of XIILAB
Email: jpark0331@yonsei.ac.kr
Research Area: Big Data, Deep Learning, Generative AI
Ji Hong Kang 강지홍 (Integrated PhD student since March 2023)
PhD Major: AI-Fintech
Master Major: AI-Fintech
Undergraduate Major: AI-Fintech
Works at NICE Information Service Co.,Ltd.
Email: kangjh905@naver.com
Research Area: Big Data Analytics, Credit Scoring Models, Algorithmic Fairness & Interpretability, Alternative Data & Credit Assessment.
Jae Won Ahn 안제원 (PhD student since September 2023)
PhD Major: Integrative Medicine - Digital Healthcare
Master Major: Department of Intelligence and Convergence
Undergraduate Major: Mechanical Engineering
Works at CDO - AI Big Data of LG Electronics
Email: ahnjawon@naver.com
Research Area: NLP, Multi-Modal AI, AI for Healthcare
Publications & Awards:
Enhancing Medical Cross-Modal Hashing Retrieval using Dropout-Voting Mixture-of-Experts Fusion, Jae Won Ahn, Woo Sung Jang, and Beakcheol Jang, In Proceedings of the ACM CIKM International Workshop on Multimodal Generative Search and Recommendation, November 2025.
Sung Moon Ahn 안성문 (PhD student since September 2023)
PhD Major: Information Systems, Big Data Analytics
Master Major: Information Systems
Undergraduate Major: Economics
Works at Big Data Center of NH Investment & Securities
Email: sungmoon@nhqv.com
Research Area: Natural Language Processing, Large Language Modeling, Speech Recognition, Knowledge Graphs
Jaeik Lee 이재익 (PhD student since March 2024)
PhD Major: Information System
Master Major: Economics, Information System
Undergraduate Major: Economics
Works at ABI KOREA (OB Beer)
Email: jake.lee@yonsei.ac.kr
Research Area: Causal Inference, Time-series Forecasting
Kyounwoo Kim 김견우 (PhD student since March 2024)
Works at CCmeda Service
Email: k2wackie@yonsei.ac.kr
Research Area: Deep Learning, Block Chain
Jong Kil Hong 홍종길 (PhD student since September 2024)
PhD Major: Business AI Big Data Analytics
Master Major: Management of Technology
Undergraduate Major: Chemical Engineering
Works at LG Energy Solution
Email: spyshong@naver.com
Research Area: Big Data Analytics, Deep Learning, Domain shift
Sung Jin Jang 장성진 (PhD student since September 2025)
PhD Major: Business AI Big Data Analytics
Master Major: Industrial Engineering
Undergraduate Major: Industrial Engineering
Works at The Catholic Education Foundation
Email: sungjin@yonsei.ac.kr
Research Area: LLM and SLM for Clinical decision support system, NLP, RAG
Hae In Kim 김해인 (PhD student since September 2025)
PhD Major: Business AI Big Data Analytics
Master Major: Applied Statistics
Undergraduate Major: Economics
Works at LG Energy Solution
Email: cordie@yonsei.ac.kr
Research Area: Big Data Analytics, Deep Learning, Generative AI
Hyun Jung Byun 변현정 (PhD student since September 2025)
PhD Major: Business AI Big Data Analytics
Master Major: Big Data Analytics
Undergraduate Major: Counseling Psychology
Works at Health Insurance Review & Assessment Service
Email: hjbyun25@yonsei.ac.kr
Research Area: Big data, Natural Language Processing, Deep Learning
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