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Large-scale Risk Prediction Applied To The Mini-exome Sequence Data | 7656
ISSN: 2155-6180

Journal of Biometrics & Biostatistics
Open Access

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Large-scale risk prediction applied to the mini-exome sequence data

2nd International Conference and Exhibition on Biometrics & Biostatistics

Gengxin Li

ScientificTracks Abstracts: J Biomet Biostat

DOI: 10.4172/2155-6180.S1.009

We consider the application of an Empirical Bayes Classification method, originally proposed by Efron, to Genome-wide association study risk prediction using the Genetic Analysis Workshop 17 data. A major advantage of using this method is that the effect size distribution for the set of possible features is empirically estimated and all subsequent parameter estimation and risk prediction is guided by this distribution. Here, we generalize the Efron's method to allow for some of the peculiarities of this data. In particular, we introduce two ways of extending Efron's model: weighted empirical Bayes model and joint covariance model that allow the model to properly incorporate the annotation information of single nucleotide polymorphisms (SNPs). In the course of our analysis, several aspects of the possible simulation model are examined, including the identity of the most important genes, the differing effects of synonymous and non-synonymous single nucleotide polymorphisms (SNPs), and the relative roles of covariates and genes in conferring disease risk. Finally, three methods/models addressed here are compared to each other as well as to other classifiers (random forest and neural network).

Gengxin Li has completed her Ph.D. from Michigan State University and postdoctoral studies from Yale University School of Medicine. She is the Assistant Professor of Mathematics and Statistics Department at Wright State University. She has published several papers in reputed journals.

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