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Gene trajectory clustering with a hybrid genetic algorithm and expectation maximization method

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2 Author(s)
Chan, Z.S.H. ; Knowledge Eng. & Discovery Res. Inst., Auckland Univ. of Technol., New Zealand ; Kasabov, N.

Clustering time course gene expression data (gene trajectories) is an important step towards solving the complex problem of gene regulatory network (GRN) modeling and discovery as it significantly reduces the dimensionality of the gene space required for analysis. This paper introduces a novel method that hybridizes genetic algorithm (GA) and expectation maximization algorithms (EM) for clustering with the mixtures of multiple linear regression models (MLRs). The proposed method is applied to cluster gene expression time course data into smaller number of classes based on their trajectory similarities. Its performance and application as a generic clustering method to other complex problems are discussed.

Published in:

Neural Networks, 2004. Proceedings. 2004 IEEE International Joint Conference on  (Volume:3 )

Date of Conference:

25-29 July 2004