Abstract
One of the current main strategies to understand a biological process at genome level is to cluster genes by their expression data obtained from DNA microarray experiments. The classic K-means clustering algorithm is a deterministic search and may terminate in a locally optimal clustering. In this paper, a genetic K-means clustering algorithm, called GKMCA, for clustering in gene expression datasets is described. GKMCA is a hybridization of a genetic algorithm (GA) and the iterative optimal K-means algorithm (IOKMA). In GKMCA, each individual is encoded by a partition table which uniquely determines a clustering, and three genetic operators (selection, crossover, mutation) and an IOKM operator derived from IOKMA are employed. The superiority of the GKMCA over the IOKMA and over other GA-clustering algorithms without the IOKM operator is demonstrated for two real gene expression datasets.
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Wu, FX., Zhang, W.J., Kusalik, A.J. (2003). A Genetic K-means Clustering Algorithm Applied to Gene Expression Data. In: Xiang, Y., Chaib-draa, B. (eds) Advances in Artificial Intelligence. Canadian AI 2003. Lecture Notes in Computer Science, vol 2671. Springer, Berlin, Heidelberg. https://doi.org/10.1007/3-540-44886-1_44
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DOI: https://doi.org/10.1007/3-540-44886-1_44
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