576 citations · 1.1k across the 42 of their papers we have counts for
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Post-Regularization Confidence Bands for Ordinary Differential Equations
Xiaowu Dai, Lexin Li
Ordinary differential equation (ODE) is an important tool to study the dynamics of a system of biological and physical processes. A central question in ODE modeling is to infer the…
Testing Directed Acyclic Graph via Structural, Supervised and Generative Adversarial Learning
Chengchun Shi, Yunzhe Zhou, Lexin Li
In this article, we propose a new hypothesis testing method for directed acyclic graph (DAG). While there is a rich class of DAG estimation methods, there is a relative paucity of…
Nonparametric Trace Regression in High Dimensions via Sign Series Representation
Chanwoo Lee, Lexin Li, Hao Helen Zhang +1
Learning of matrix-valued data has recently surged in a range of scientific and business applications. Trace regression is a widely used method to model effects of matrix predictor…
Kernel Knockoffs Selection for Nonparametric Additive Models
Xiaowu Dai, Xiang Lyu, Lexin Li
Thanks to its fine balance between model flexibility and interpretability, the nonparametric additive model has been widely used, and variable selection for this type of model has…
Multimodal Data Integration via Mediation Analysis with High-Dimensional Exposures and Mediators
Yi Zhao, Lexin Li
Motivated by an imaging proteomics study for Alzheimer's disease (AD), in this article, we propose a mediation analysis approach with high-dimensional exposures and high-dimensiona…
Orthogonalized Kernel Debiased Machine Learning for Multimodal Data Analysis
Xiaowu Dai, Lexin Li
Multimodal imaging has transformed neuroscience research. While it presents unprecedented opportunities, it also imposes serious challenges. Particularly, it is difficult to combin…