关键词: 局外点 鲁棒聚类 混合t模型 期望最大化算法 模型选择准则

Abstract: Providing protection against outlier in clustering data is a difficult problem for mixtures models fitting. In this paper, we consider the fitting of mixtures t distributions alternative to mixtures normal distributions for multi-component gauss data with

Key words: Outlier, Robust clustering, Mixtures t distribution, Expectation maximization, Model selection criterion