Yunbum Kook
Office: 2210 KACB
Email: yb.{last name} at gatech dot edu

I am a fourth-year PhD student in the School of Computer Science at Georgia Institute of Technology, advised by Prof. Santosh Vempala. I received my B.S. in Mathematical Sciences from KAIST. I am interested in sampling, diffusion models, and theoretical aspects of machine learning.

Scholar

Publications

Sampling and integration of logconcave functions by algorithmic diffusion
with Santosh S. Vempala
arXiv

Covariance estimation using Markov chain Monte Carlo
with Matthew S. Zhang
arXiv

Rényi-infinity constrained sampling with d^3 membership queries
with Matthew S. Zhang
arXiv   SODA 2025   Slide

In-and-Out: Algorithmic diffusion for sampling convex bodies
with Santosh S. Vempala, Matthew S. Zhang
arXiv   [NeurIPS 2024 (Spotlight)]   PosterSlide

Sampling from the mean-field stationary distribution
with Sinho Chewi, Murat A. Erdogdu, Mufan Bill Li, Matthew S. Zhang
arXivCOLT 2024PosterSlide

Gaussian cooling and Dikin walks: The interior-point method for logconcave sampling
with Santosh S. Vempala
arXivCOLT 2024PosterSlide

Understanding Adam optimizer via online learning of updates: Adam is FTRL in disguise
Kwangjun Ahn, Zhiyu Zhang, Yunbum Kook, Yan Dai
arXivICML 2024Video (15)

Condition-number-independent convergence rate of Riemannian Hamiltonian Monte Carlo with numerical integrators
with Yin Tat Lee, Ruoqi Shen, Santosh S. Vempala
arXivCOLT 2023PosterSlide

Sampling with Riemannian Hamiltonian Monte Carlo in a constrained space
with Yin Tat Lee, Ruoqi Shen, Santosh S. Vempala
arXivNeurIPS 2022PosterSlideCode

Vertex sparsification for edge connectivity
with Parinya Chalermsook, Syamantak Das, Bundit Laekhanukit, Yang P. Liu, Richard Peng, Mark Sellke, Daniel Vaz
arXivSODA 2021SlideVideo(11)Video(25)Video(60)

Evolution of real-world hypergraphs: Patterns and models without oracles (long)
Yunbum Kook, Jihoon Ko, Kijung Shin
arXivICDM 2020[Knowledge and Information Systems]SlideVideo(20)Code

Incremental lossless graph summarization
Jihoon Ko*, Yunbum Kook*, Kijung Shin
arXivKDD 2020SlideVideo(20)Code

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