کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8919520 1642893 2017 17 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A mixture of SDB skew-t factor analyzers
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات آمار و احتمال
پیش نمایش صفحه اول مقاله
A mixture of SDB skew-t factor analyzers
چکیده انگلیسی
Mixtures of skew-t distributions offer a flexible choice for model-based clustering. A mixture model of this sort can be implemented using a variety of formulations of the skew-t distribution. A mixture of skew-t factor analyzers model for clustering of high-dimensional data using a flexible formulation of the skew-t distribution is developed. Methodological details of the proposed approach, which represents an extension of the mixture of factor analyzers model to a flexible skew-t distribution, are outlined and details of parameter estimation are provided. Clustering results are illustrated and compared to an alternative formulation of the mixture of skew-t factor analyzers model as well as the mixture of factor analyzers model.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Econometrics and Statistics - Volume 3, July 2017, Pages 160-168
نویسندگان
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