Department of Statistics Seminar
North Carolina State University

presents

Veera Baladandayuthapani, Ph.D.

Department of Biostatistics
Division of Quantitative Sciences
The University of Texas M.D. Anderson Cancer Center

Bayesian nonparametric functional models for high-dimensional genomics data

Abstract

Due to rapid technological advances, various types of genomic, epigenomic, transcriptomic and proteomic data with different sizes, formats, and structures have become available.  These experiments typically yield data consisting of high-resolution genetic changes of hundreds/thousands of markers across the whole chromosomal map.

Modeling and inference in such studies is challenging, not only due to high dimensionality, but also due to presence of structured dependencies (e.g. serial and spatial correlations). Using genome continuum models as a general principle we present a class of Bayesian methods to model these genomic profiles using functional data analysis
approaches. Our methods allow for simultaneous characterization of these high-dimensional functions using non-parametric basis functions, joint modeling of spatially correlated functional data and detection of local features in spatially heterogeneous functional data – to answer several important biological questions. We illustrate
 our methodology by using several real and simulated datasets and propose methods to integrate various types of genomics data as well.

Friday, 9 November, 2012
3:00pm - 4:00pm
2203 SAS Hall

Refreshments will be served in the 5th floor commons at 2:30pm.
NOTE: No food or drink is allowed in any of the classrooms in SAS Hall.