activity
20122026
most citedRegularization vs. Relaxation: A conic optimization perspective of statistical variable selection

24 citations · 112 across the 21 of their papers we have counts for

collaborators

21 papers

cs.LG2026

From Seeds to Semantics: Measuring Semantic Accessibility in Deterministic Diffusion Models

Wei Wei, Yizhou Zeng, Kuntian Chen +3

Diffusion models generate samples through a sequence of learned denoising steps, and recent work has studied how semantic structure appears along this sampling process. We study th…

stat.ML2025

Robust Data Fusion via Subsampling

Jing Wang, HaiYing Wang, Kun Chen

Data fusion and transfer learning are rapidly growing fields that enhance model performance for a target population by leveraging other related data sources or tasks. The challenge…

stat.ML2025

Majorization-Minimization Dual Stagewise Algorithm for Generalized Lasso

Jianmin Chen, Kun Chen

The generalized lasso is a natural generalization of the celebrated lasso approach to handle structural regularization problems. Many important methods and applications fall into t…

stat.ME2020

It's All Relative: New Regression Paradigm for Microbiome Compositional Data

Gen Li, Yan Li, Kun Chen

Microbiome data are complex in nature, involving high dimensionality, compositionally, zero inflation, and taxonomic hierarchy. Compositional data reside in a simplex that does not…

stat.ME2020★ 15 cited

The More Data, the Better? Demystifying Deletion-Based Methods in Linear Regression with Missing Data

Tianchen Xu, Kun Chen, Gen Li

We compare two deletion-based methods for dealing with the problem of missing observations in linear regression analysis. One is the complete-case analysis (CC, or listwise deletio…

stat.ME2020

Generalized Co-sparse Factor Regression

Aditya Mishra, Dipak K. Dey, Yong Chen +1

Multivariate regression techniques are commonly applied to explore the associations between large numbers of outcomes and predictors. In real-world applications, the outcomes are o…