Post-doctoral Researcher
Information & Electronics Research Institute, KAIST
Email: jeongwhan.choi@kaist.ac.kr
CV / CV of Failure / Google Scholar / Semantic Scholar / GitHub / 𝕏 / LinkedIn / BlueSky / ResearchGate / ORCID / DBLP / Medium
I am a Post-doctoral Researcher at the Information & Electronics Research Institute, KAIST. I received my Ph.D. in Artificial Intelligence from Yonsei University in August 2025 under the supervision of Noseong Park. My research interests span various areas, including graph neural networks, recommender systems, spatio-temporal forecasting, differential equations, and Transformers. I have published multiple papers in prestigious venues, including NeurIPS, ICML, ICLR, AAAI, IJCAI, CIKM, WSDM, SIGIR, and ICDM. My research has been recognized through the Qualcomm Innovation Fellowship, and I have received Top Reviewer Awards at NeurIPS 2024, LoG 2024, and KDD 2025. I will be serving as Website Chair for the upcoming CIKM 2025 and LoG 2025.
I work on developing advanced AI models with a focus on three main areas: (1) Graph Neural Networks & Differential Equations, (2) Recommender Systems & Collaborative Filtering, (3) Spatiotemporal Forecasting, and (4) Transformers.
🎓 Sep 1, 2025 I have joined the Information & Electronics Research Institute at KAIST as a Post-doctoral Researcher.
🎓 Aug 29, 2025 I successfully defended my dissertation and received my Ph.D. in Artificial Intelligence from Yonsei University under the supervision of Prof. Noseong Park and Sung-Bae Cho.
✍️ July 5, 2025 I am invited as a reviewer for KDD 2026 (first cycle).
✍️ June 19, 2025 I am invited to be a PC member for WSDM 2026.
🔝 June 11, 2025 I have been recognized as an Outstanding Reviewer (Top 10%) for KDD 2025 (February Cycle).
💊 May 29, 2025 "Predicting Drug-Drug Interactions: A Deep Learning Approach with GCN-based Collaborative Filtering" was accepted in Artificial Intelligence in Medicine (IF 6.1)!
🛜 May 5, 2025 I will serve as a Website Chair for the Learning on Graph (LoG) conference!
✌️ Apr 29, 2025 "Learning Advanced Self-Attention for Linear Transformers in the Singular Value Domain" was accepted in IJCAI 2025!
✍️ Apr 8, 2025 I am invited to be a PC member for ECAI 2025.
🛜 Mar 3, 2025 I am invited to be a Web Chair for CIKM 2025!
🔝 Mar 2, 2025 "Paper Digest - Most Influential AAAI Papers (2025-03 Version)" announced that our paper, "Graph Neural Controlled Differential Equations for Traffic Forecasting", ranked 13rd among the most influential papers at AAAI 2022.
🪖 Feb 27, 2025 As a Ph.D. technical research personnel, I completed a military training program in February!
✍️ Feb 17, 2025 I am invited to be a reviewer for NeurIPS 2025.
✍️ Jan 25, 2025 I am invited to be a reviewer for Transactions on Machine Learning Research (TMLR).
🕸️ Jan 23, 2025 "PIORF: Physics-Informed Ollivier-Ricci Flow for Long–Range Interactions in Mesh Graph Neural Networks" was accepted in ICLR 2025!
🕵️ Jan 13, 2025 "FraudCenGCL: Enhancing Fraud Detection via Dual-View Graph Contrastive Learning with Account Centrality Features" was accepted for Social Impact: Bridging Innovations in Finance, Social Media, and Crime Prevention Workshop at AAAI 2025.
🏆 Jan 8, 2025 I am delighted to have received the "Merit Academic Paper Award" from Yonsei University for his research "PANDA: Expanded Width-Aware Message Passing Beyond Rewiring", which was presented at ICML 2024.
Jeongwhan Choi*, Hyowon Wi*, Jayoung Kim, Yehjin Shin, Kookjin Lee, Nathaniel Trask, and Noseong Park, "Graph Convolutions Enrich the Self-Attention in Transformers!", In Conference on Neural Information Processing Systems (NeurIPS), 2024.
Jeongwhan Choi, Sumin Park, Hyowon Wi, Sung-Bae Cho, and Noseong Park, "PANDA: Expanded Width-Aware Message Passing Beyond Rewiring", ICML, 2024.
Jeongwhan Choi and Noseong Park, "Graph Neural Rough Differential Equations for Traffic Forecasting", ACM Transactions on Intelligent Systems and Technology (TIST), 2023.
Jeongwhan Choi, Seoyoung Hong, Noseong Park, and Sung-Bae Cho, "GREAD: Graph Reaction-Diffusion Networks," ICML 2023.
Jeongwhan Choi, Seoyoung Hong, Noseong Park, and Sung-Bae Cho, "Blurring-Sharpening Process Models for Collaborative Filtering," SIGIR 2023.
Jeongwhan Choi, Hwangyong Choi, Jeehyun Hwang, and Noseong Park, "Graph Neural Controlled Differential Equations for Traffic Forecasting," AAAI 2022.
Jeehyun Hwang, Jeongwhan Choi, Hwangyong Choi, Kookjin Lee, Dongeun Lee, and Noseong Park, "Climate Modeling with Neural Diffusion Equations", ICDM 2021.
Jeongwhan Choi, Jinsung Jeon, and Noseong Park, "LT-OCF: Learnable-Time ODE-based Collaborative Filtering", CIKM 2021.
Sep 2020 – Present, Graduate Student Researcher, BigDyL (Big Data Analytics Lab) (Advisor: Prof. Noseong Park)
Jan 2020 – Sep 2020, Undergraduate Student Researcher, AI & SE Lab (Advisor: Prof. Duksan Ryu)
Nov 2018 – Dec 2019, Undergraduate Student Researcher, Systems & Software Engineering Lab (Advisor: Prof. Suntae Kim)
Jun 2025, Outstanding Reviewer (Top 10%), KDD 2025 (August Cycle).
Feb 2025, Merit Academic Paper Award, Yonsei University (Runner-up paper in Dept. of Artificial Intelligence) [link]
Dec 2024, Outstanding Reviewer (Top 10%), KDD 2025 (August Cycle).
Dec 2024, Qualcomm Innovation Fellowship Award (4M KRW, approx. 2.8K USD), Qualcomm Technologies Inc. [link]
Nov 2024, Top Reviewer Award, LoG 2024. [link]
Nov 2024, Top Reviewer Award, NeurIPS 2024. [link]
Oct, 2024, Excellence Award (First Prize), Korea Financial Telecommunications & Clearings Institute. [link]
Oct 2024, Qualcomm Innovation Fellowship Finalist Award, Qualcomm Technologies Inc. [link]
Jul 2024, Merit Academic Paper Award, Yonsei University (Runner-up paper in Dept. of Artificial Intelligence) [link]
Jan 2024, Best Paper Award, Yonsei University (Best paper in Dept. of Artificial Intelligence) [link]
May 2023, Graduate Student Research Assistantship (GSRA) Scholarship, Yonsei University
Jan 2023, Academic Research Fellowship (ARF), Brain Korea 21 (BK21) Program, Yonsei University
Nov 2022, Graduate Student Research Assistantship (GSRA) Scholarship, Yonsei University
Sep 2022, Academic Research Fellowship (ARF), Brain Korea 21 (BK21) Program, Yonsei University
Jul 2022, Best Paper Award, Yonsei University (Best paper in Dept. of Artificial Intelligence) [link]
Apr 2022, Graduate Student Research Assistantship (GSRA) Scholarship, Yonsei University
Feb 2021, Best Paper Award, the 23rd Korea Conference on Software Engineering (KCSE 2021)
Jun 2019, Best Paper Award, Korean Institute of Information Technology
Mar 2018 – Dec 2019, National Scholarship for Science and Engineering, KOSAF (Korea Student Aid Foundation)
Full tuition exemptions for 8 semesters.
Dec 2023, Talk on Top-conference session, Korea Software Congress (KSC 2023)
Jun 2023, Talk on 1st Seminar held by Graph User Group (GUG).
Jun 2023, Talk on Top-conference session, Korea Computer Congress (KCC 2023)
Feb 2023, Talk on 2023 KSIAM AI Winter School held by Korean Society for Industrial and Applied Mathematics (KSIAM). [Slides]
Oct 2022, Talk on 1st Workshop on AI held by Yonsei Univ. [Slides][Poster]
Aug 2022, Poster presentation for AIGS Symposium 2022 held at the COEX Grand Ballroom. [Poster]
Jul 2022, Invited talk on Top-conference session, Korea Computer Congress (KCC 2022) [Slides]
Nov 2021, "Graph-based Collaborative Filtering and Neural ODEs", Korean Artificial Intelligence Association (KAIA) | LG AI Research, (This talk is part of a tutorial called "Deep Learning Inspired by Differential Equation". ) [Slides]
Conference Organizer
Reviewer or Program Committee Member for Conference
NLDL 2026
ICML 2025
SIGIR 2025
ICLR 2025
AISTATS 2025, 2026
NeurIPS 2024 (Top Reviewer Award), 2025 (Benchmark & Datasets and Position Paper Tracks)
AAAI 2024, 2025, 2026
IJCAI 2024, 2025
WSDM 2025, 2026 (Full paper and short paper tracks)
CIKM 2024, 2025 (Full paper and short paper tracks)
SDM 2024
KDD 2023, 2024, 2025 August Track (Outstanding Reviewer), 2025 February Track (Outstanding Reviewer), 2026 First Cycle
ICDM 2021, 2022
TGL Workshops at NeurIPS 2023 and KDD 2025
NeurIPS 2024 Workshop ML4PS
AI4TS Workshops at AAAI 2025, SDM 2025, IJCAI 2025, ICDM 2025
4th Workshop on Graphs and More Complex Structures for Learning and Reasoning (GCLR) at AAAI 2024
Reviewer for Journal (41 times)
Proceedings of the Royal Society A - 1 time in 2025
Data Mining and Knowledge Discovery - 1 time in 2025 [Certificate]
Expert Systems With Applications (ESWA) – 3 times in 2025
IEEE Transactions on Emerging Topics in Computing – 1 time in 2025
Transactions on Machine Learning Research (TMLR) – 5 times in 2025
Knowledge-Based Systems – 5 times in 2025 [Certificate]
Applied Economics Letters – 1 time in 2024
Neurocomputing – 2 times in 2024, 1 time in 2025 [Certificate]
IEEE Transactions on Image Processing (TIP) – 1 time in 2024
IEEE Transactions on Knowledge and Data Engineering (TKDE) – 1 time in 2023, 1 time in 2024
Journal of Intelligent & Fuzzy Systems – 1 time in 2024
Applied Soft Computing – 6 times in 2024, 9 times in 2025 [Certificate]
Applied Artificial Intelligence – 2 times in 2023
IEEE Transactions on Intelligent Transportation Systems (TIST) – 1 time in 2022, 1 time in 2025