Search Results for author: Hwanwoo Kim

Found 4 papers, 0 papers with code

ReTaSA: A Nonparametric Functional Estimation Approach for Addressing Continuous Target Shift

no code implementations29 Jan 2024 Hwanwoo Kim, Xin Zhang, Jiwei Zhao, Qinglong Tian

This work focuses on the target shift problem in a regression setting (Zhang et al., 2013; Nguyen et al., 2016).

regression

Optimization on Manifolds via Graph Gaussian Processes

no code implementations20 Oct 2022 Hwanwoo Kim, Daniel Sanz-Alonso, Ruiyi Yang

We rely on a point cloud of manifold samples to define a graph Gaussian process surrogate model for the objective.

Gaussian Processes

A Variational Inference Approach to Inverse Problems with Gamma Hyperpriors

no code implementations26 Nov 2021 Shiv Agrawal, Hwanwoo Kim, Daniel Sanz-Alonso, Alexander Strang

Hierarchical models with gamma hyperpriors provide a flexible, sparse-promoting framework to bridge $L^1$ and $L^2$ regularizations in Bayesian formulations to inverse problems.

Model Selection Time Series +3

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