40 citations · 42 across the 13 of their papers we have counts for
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math.ST2025
Zeroth-order Logconcave Sampling
Yunbum Kook, Santosh S. Vempala
We study the zeroth-order query complexity of sampling from a general logconcave distribution: given access to an evaluation oracle for a convex function $V:\mathbb{R}^{d}\rightarr…
math.ST2024
Covariance estimation using Markov chain Monte Carlo
Yunbum Kook, Matthew S. Zhang
We investigate the complexity of covariance matrix estimation for Gibbs distributions based on dependent samples from a Markov chain. We show that when satisfies a Poincaré ine…
math.ST2024
Sampling from the Mean-Field Stationary Distribution
Yunbum Kook, Matthew S. Zhang, Sinho Chewi +2
We study the complexity of sampling from the stationary distribution of a mean-field SDE, or equivalently, the complexity of minimizing a functional over the space of probability m…