Epistasis Blog

From the Computational Genetics Laboratory at Dartmouth Medical School (www.epistasis.org)

Monday, July 16, 2012

Risk estimation and risk prediction using machine-learning methods

Great new paper on machine learning analysis in human genetics.

Kruppa J, Ziegler A, K├Ânig IR. Risk estimation and risk prediction using machine-learning methods. Hum Genet. 2012 Jul 3, in press. [PubMed]

Abstract

After an association between genetic variants and a phenotype has been established, further study goals comprise the classification of patients according to disease risk or the estimation of disease probability. To accomplish this, different statistical methods are required, and specifically machine-learning approaches may offer advantages over classical techniques. In this paper, we describe methods for the construction and evaluation of classification and probability estimation rules. We review the use of machine-learning approaches in this context and explain some of the machine-learning algorithms in detail. Finally, we illustrate the methodology through application to a genome-wide association analysis on rheumatoid arthritis.

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