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  • Gene Expression data clustering and visualization based on a binary hierarchical clustering framework

    Author(s)
    Szeto, LK
    Liew, AWC
    Yan, H
    Tang, SS
    Griffith University Author(s)
    Liew, Alan Wee-Chung
    Year published
    2003
    Metadata
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    Abstract
    Gene expression data analysis has recently emerged as an active area of research. An important tool for unsupervised analysis of gene expression data is cluster analysis. Although many clustering algorithms have been proposed for such task, problems such as estimating the right number of clusters and adapting to different cluster characteristics are still not satisfactorily addressed. In this paper, we propose a binary hierarchical clustering (BHC) algorithm for the clustering of gene expression data. The BHC algorithm involves two major steps: (i) the fuzzy C-means algorithm and the average linkage hierarchical clustering ...
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    Gene expression data analysis has recently emerged as an active area of research. An important tool for unsupervised analysis of gene expression data is cluster analysis. Although many clustering algorithms have been proposed for such task, problems such as estimating the right number of clusters and adapting to different cluster characteristics are still not satisfactorily addressed. In this paper, we propose a binary hierarchical clustering (BHC) algorithm for the clustering of gene expression data. The BHC algorithm involves two major steps: (i) the fuzzy C-means algorithm and the average linkage hierarchical clustering algorithm are used to partition the data into two classes, and (ii) the Fisher linear discriminant analysis is applied to the two classes to refine and assess whether the partition is acceptable. The BHC algorithm recursively partitions the subclasses until all clusters cannot be partition any further. It does not require the number of clusters to be supplied in advance nor does it place any assumption about the size of each cluster or the class distribution. The BHC algorithm naturally leads to a tree structure representation, where the clustering results can be visualized easily.
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    Journal Title
    Journal of Visual Languages and Computing
    Volume
    14
    Issue
    4
    Publisher URI
    http://www.sciencedirect.com/science/journal/1045926X
    DOI
    https://doi.org/10.1016/S1045-926X(03)00033-8
    Subject
    Artificial Intelligence and Image Processing
    Computer Software
    Cognitive Sciences
    Publication URI
    http://hdl.handle.net/10072/21807
    Collection
    • Journal articles

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