3 citations · 7 across the 5 of their papers we have counts for
5 papers
Fitting a Multi-modal Density by Dynamic Programming
Ery Arias-Castro, He Jiang
We consider the problem of fitting a probability density function when it is constrained to have a given number of modal intervals. We propose a dynamic programming approach to sol…
Extending the Patra-Sen Approach to Estimating the Background Component in a Two-Component Mixture Model
Ery Arias-Castro, He Jiang
Patra and Sen (2016) consider a two-component mixture model, where one component plays the role of background while the other plays the role of signal, and propose to estimate the…
On the Consistency of Metric and Non-Metric K-medoids
Ery Arias-Castro, He Jiang
We establish the consistency of K-medoids in the context of metric spaces. We start by proving that K-medoids is asymptotically equivalent to K-means restricted to the support of t…
-Means and Gaussian Mixture Modeling with a Separation Constraint
He Jiang, Ery Arias-Castro
We consider the problem of clustering with -means and Gaussian mixture models with a constraint on the separation between the centers in the context of real-valued data. We firs…
Group Regularized Estimation under Structural Hierarchy
Yiyuan She, Zhifeng Wang, He Jiang
Variable selection for models including interactions between explanatory variables often needs to obey certain hierarchical constraints. The weak or strong structural hierarchy req…