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stat.ME2026
Joint Estimation and Feature Selection in Overspecified Finite Mixture of Regressions
Abbas Khalili, Pengqi Liu, Huy Nguyen +1
We investigate joint estimation and feature selection in sparse finite mixtures of regressions with an overspecified number of mixture components or mixture order. More specificall…
stat.ME2021
New Hard-thresholding Rules based on Data Splitting in High-dimensional Imbalanced Classification
Arezou Mojiri, Abbas Khalili, Ali Zeinal Hamadani
In binary classification, imbalance refers to situations in which one class is heavily under-represented. This issue is due to either a data collection process or because one class…
stat.ME2020★ 1 cited
Estimating the Number of Components in Finite Mixture Models via the Group-Sort-Fuse Procedure
Tudor Manole, Abbas Khalili
Estimation of the number of components (or order) of a finite mixture model is a long standing and challenging problem in statistics. We propose the Group-Sort-Fuse (GSF) procedure…