2 papers
stat.ME2017
Semiparametric Estimation of Symmetric Mixture Models with Monotone and Log-Concave Densities
Xiao Pu, Ery Arias-Castro
In this article, we revisit the problem of fitting a mixture model under the assumption that the mixture components are symmetric and log-concave. To this end, we first study the n…
math.ST2016
Concentration of Measure for Radial Distributions and Consequences for Statistical Modeling
Ery Arias-Castro, Xiao Pu
Motivated by problems in high-dimensional statistics such as mixture modeling for classification and clustering, we consider the behavior of radial densities as the dimension incre…