The Local Maximum Clustering Method and Its Application in Microarray Gene Expression Data Analysis

Xiongwu Wu, Yidong Chen, Bernard R. Brooks, Yan A. Su

Research output: Contribution to journalArticle

25 Scopus citations

Abstract

An unsupervised data clustering method, called the local maximum clustering (LMC) method, is proposed for identifying clusters in experiment data sets based on research interest. A magnitude properly is defined according to research purposes, and data sets are clustered around each local maximum of the magnitude property. By properly defining a magnitude property, this method can overcome many difficulties in microarray data clustering such as reduced projection in similarities, noises, and arbitrary gene distribution. To critically evaluate the performance of this clustering method in comparison with other methods, we designed three model data sets with known cluster distributions and applied the LMC method as well as the hierarchic clustering method, the K-mean clustering method, and the self-organized map method to these model data sets. The results show that the LMC method produces the most accurate clustering results. As an example of application, we applied the method to cluster the leukemia samples reported in the microarray study of Golub et al. (1999).

Original languageEnglish (US)
Pages (from-to)53-63
Number of pages11
JournalEurasip Journal on Applied Signal Processing
Volume2004
Issue number1
DOIs
StatePublished - Jan 1 2004

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Keywords

  • Classification
  • Clustering method
  • Data cluster
  • Gene expression
  • Microarray
  • Model data sets

ASJC Scopus subject areas

  • Signal Processing
  • Hardware and Architecture
  • Electrical and Electronic Engineering

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