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Statistical Modeling of OMICS data. Min Zhang, M.D., Ph.D. Department of Statistics Purdue University. OMICS Data. Genomics (SNP) Glycoproteomics Lipdomics Metabolomics. Outline. Statistical Methods for Identifying Biomarkers Metabolomics Align GCxGC-MS Data Other Projects. - PowerPoint PPT Presentation
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Statistical Modeling of OMICS data
Min Zhang, M.D., Ph.D.
Department of StatisticsPurdue University
OMICS Data
Genomics (SNP)
Glycoproteomics
Lipdomics
Metabolomics
Outline
Statistical Methods for Identifying Biomarkers
Metabolomics Align GCxGC-MS Data
Other Projects
Statistical Methods for Identifying Biomarkers
Classical Methods
Bayesian Variable Selection
Regularized Variable Selection
Regularized Variable Selection
Feasible
Easy to implement
Incorporate a large number of factors
Regularized Variable Selection
Fast
Do not need to calculate inverse of any matrix
As fast as repeating an univariate association study serveral times
Regularized Variable Selection
Fruitful Effective and efficient for variable
selection OMICS data in CCE Genome-wide association study Epistasis Gene-gene interactions eQTL mapping
Regularized Variable Selection
More Details
Will be presented by Yanzhu Lin in the future
Alignment of GCxGC-MS Data
The Two-Dimensional Correlation Optimized Warping (2D-COW) Algorithm
The 2-D COW Algorithm
The 2-D COW Algorithm
The 2-D COW Algorithm Applying the 1-D alignment parameters
simultaneously to warp the chromatogram
A Toy Example
Align Homogeneous Images (TIC)
Align Homogeneous Images (SIC)
Align Heterogeneous Images (SIC)
Align Heterogeneous Images (TIC)
Align Chromatograms from Serum Samples
Align Chromatograms from Serum Samples
Other Projects
Identify Differentially Expressed Features in GCxGC-MS Data
Integration of OMICS data
Other Clinical Data
More …
Summary Regularized Variable Selection Method
for Identifying Biomarkers The 2D-COW Algorithm for Aligning
GCxGC-MS Data It can also be used to align LCxLC, LCxGC,
GCxGC, LCxCE, and CExCE data
In Progress Identify Differentially Expressed Features in
GCxGC-MS Data
Acknowledgements
Dabao Zhang
Yanzhu Lin
Fred Regnier
Xiaodong Huang
Dan Raftery