A go-driven semantic similarity measure for quantifying the biological relatedness of gene products
Intelligent Decision Technologies - Special issue on advances in medical intelligent decision support systems
IEEE/ACM Transactions on Computational Biology and Bioinformatics (TCBB)
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The paper presents a comparison of the data-based and Gene Ontology (GO)-based approaches to cluster validation methods for gene microarray analysis. We apply a homogeneous approach to obtaining metrics from different GO-based similarity measures and a normalization of validation index values, that allows us to compare them to each other as well as to databased validation indices. The results show strong correlation between both GO-based and data-based validation indices. The results suggest that this may represent an effective tool to support biomedical knowledge discovery tasks based on gene expression data.