CART variance stabilization and regularization for high-throughput genomic data
Author(s) -
Ariadni Papana,
Hemant Ishwaran
Publication year - 2006
Publication title -
bioinformatics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.599
H-Index - 390
eISSN - 1367-4811
pISSN - 1367-4803
DOI - 10.1093/bioinformatics/btl384
Subject(s) - computer science , pooling , data mining , cart , variance (accounting) , regularization (linguistics) , software , regression , statistics , statistical hypothesis testing , artificial intelligence , mathematics , mechanical engineering , accounting , engineering , business , programming language
mRNA expression data obtained from high-throughput DNA microarrays exhibit strong departures from homogeneity of variances. Often a complex relationship between mean expression value and variance is seen. Variance stabilization of such data is crucial for many types of statistical analyses, while regularization of variances (pooling of information) can greatly improve overall accuracy of test statistics.
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