The Weibull distribution based normalization method for affymetrix gene expression microarray data

Reija Autio, Sami Kilpinen, Matti Saarela, Sampsa Hautaniemi, Olli Kallioniemi, Jaakko Astola

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

1 Citation (Scopus)

Abstract

Affymetrix human gene expression microarrays are widely used in gene expression analysis. However, the comparability of data analyzed in different laboratories is not self-evident hindering integration of multiple data sets. In this study, we introduce a novel normalization method, Weibull distribution based normalization that makes the data from different laboratories easier to integrate and compare. The method normalizes the samples by correcting the ML-estimates of the parameters of Weibull distribution to be the same in every sample of the same array generation. The effects of the Weibull distribution based normalization were studied by comparing the distributions of the samples, examining the deviations of expression levels of housekeeping genes, and clustering the data.
Original languageEnglish
Title of host publication2006 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS 2006
PublisherIEEE Institute of Electrical and Electronic Engineers
Pages9-10
ISBN (Electronic)1-4244-0385-5
ISBN (Print)1-4244-0384-7
DOIs
Publication statusPublished - 2006
MoE publication typeA4 Article in a conference publication
Event2006 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS 2006 - College Station, United States
Duration: 28 May 200630 May 2006

Conference

Conference2006 IEEE International Workshop on Genomic Signal Processing and Statistics, GENSIPS 2006
Country/TerritoryUnited States
CityCollege Station
Period28/05/0630/05/06

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