Robust Weighted Kernel Logistic Regression to predict gene-gene regulatory association

Maher Maalouf, Dirar Humouz, Andrzej Kudlicki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Gene-gene associations are usually inferred from correlations between pairs of genes in different types of biological data such as microarray expression measurements. However coexpression (or correlation) based associations are meaningful only when data sets share the same experimental conditions. In addition, correlation does not indicate a regulatory relationship between two genes. In this work, we adopt another approach to identify connected (with regulatory relationship) pairs of genes utilizing genome-wide expression data with a wide range of different experimental conditions. The number of connected pairs of genes is typically a very small number compared to the total number of pairs in the whole genome. Thus, we can assume that gene-gene connection is a rare event that can be predicted using special classification algorithms. The algorithm used here is called Rare Event-Weighted Kernel Logistic Regression (RE-WKLR). The features that define each pair of genes are the moments of joint probability distribution of expression levels of these two genes. This approach is applied to Saccharomyces cerevisiae genome. The accuracy of RE-WKLR in predicting gene-gene connections is compared with that of Support Vector Machines (SVM) and is found to be higher than that of SVM.

Original languageEnglish (US)
Title of host publicationIIE Annual Conference and Expo 2014
PublisherInstitute of Industrial Engineers
Pages1356-1360
Number of pages5
ISBN (Electronic)9780983762430
StatePublished - 2014
Externally publishedYes
EventIIE Annual Conference and Expo 2014 - Montreal, Canada
Duration: May 31 2014Jun 3 2014

Publication series

NameIIE Annual Conference and Expo 2014

Other

OtherIIE Annual Conference and Expo 2014
Country/TerritoryCanada
CityMontreal
Period5/31/146/3/14

Keywords

  • Gene-gene association
  • Kernel Logistic regression
  • Microarray expression Data
  • Rare events
  • Yeast

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering
  • Control and Systems Engineering

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