Mixture model-based statistical pattern recognition of clustered or longitudinal data
Author(s)
Ng, SK.
McLachlan, G.
Griffith University Author(s)
Year published
2005
Metadata
Show full item recordAbstract
Mixture models implemented via the expectationmaximization (EM) algorithm are being increasingly used in a wide range of problems in statistical pattern recognition. For many applied problems in medical and health research, the data collected may exhibit a hierarchical structure. The independence assumption in the maximum likelihood (ML) learning of mixture models is no longer valid. Ignoring the correlation between hierarchically structured data can lead to misleading pattern recognition. In this paper, we consider the extension of Gaussian mixtures to incorporate data hierarchies via the linear mixed-effects model (LMM). ...
View more >Mixture models implemented via the expectationmaximization (EM) algorithm are being increasingly used in a wide range of problems in statistical pattern recognition. For many applied problems in medical and health research, the data collected may exhibit a hierarchical structure. The independence assumption in the maximum likelihood (ML) learning of mixture models is no longer valid. Ignoring the correlation between hierarchically structured data can lead to misleading pattern recognition. In this paper, we consider the extension of Gaussian mixtures to incorporate data hierarchies via the linear mixed-effects model (LMM). Clustered and longitudinal data hierarchy settings in medical and biological research are considered.
View less >
View more >Mixture models implemented via the expectationmaximization (EM) algorithm are being increasingly used in a wide range of problems in statistical pattern recognition. For many applied problems in medical and health research, the data collected may exhibit a hierarchical structure. The independence assumption in the maximum likelihood (ML) learning of mixture models is no longer valid. Ignoring the correlation between hierarchically structured data can lead to misleading pattern recognition. In this paper, we consider the extension of Gaussian mixtures to incorporate data hierarchies via the linear mixed-effects model (LMM). Clustered and longitudinal data hierarchy settings in medical and biological research are considered.
View less >
Conference Title
Proceedings of WDIC 2005, APRS Workshop on Digital Image Computing