期刊
PATTERN RECOGNITION
卷 39, 期 12, 页码 2464-2477出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.patcog.2006.03.003
关键词
multi-objective optimization; microarray; genetic algorithms; knowledge discovery; clustering
Biclustering or simultaneous clustering of both genes and conditions have generated considerable interest over the past few decades, particularly related to the analysis of high-dimensional gene expression data in information retrieval, knowledge discovery, and data mining. The objective is to find sub-matrices, i.e., maximal subgroups of genes and subgroups of conditions where the genes exhibit highly correlated activities over a range of conditions. Since these two objectives are mutually conflicting, they become suitable candidates for multi-objective modeling. In this study, a novel multi-objective evolutionary biclustering framework is introduced by incorporating local search strategies. A new quantitative measure to evaluate the goodness of the biclusters is developed. The experimental results on benchmark datasets demonstrate better performance as compared to existing algorithms available in literature. (c) 2006 Pattern Recognition Society. Published by Elsevier Ltd. All rights reserved.
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