4 papers
Optimal transport based theory for latent structured models
XuanLong Nguyen, Yun Wei
This article is an exposition on some recent theoretical advances in learning latent structured models, with a primary focus on the fundamental roles that optimal transport distanc…
A Bayesian approach to learning mixtures of nonparametric components
Yilei Zhang, Yun Wei, Aritra Guha +1
Mixture models are widely used in modeling heterogeneous data populations. A standard approach of mixture modeling assumes that the mixture component takes a parametric kernel form…
Distributional Evaluation of Generative Models via Relative Density Ratio
Yuliang Xu, Yun Wei, Li Ma
We propose a function-valued evaluation metric for generative models based on the relative density ratio (RDR) designed to characterize distributional differences between real and…
A unified framework for correlation mining in ultra-high dimension
Yun Wei, Bala Rajaratnam, Alfred O. Hero
Many applications benefit from theory relevant to the identification of variables having large correlations or partial correlations in high dimension. Recently there has been progr…