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Research Abstracts Online
January 2009 - March 2010

Main TOC ....... College TOC

University of Minnesota Twin Cities
College of Liberal Arts
Department of Statistics

PI: Xiaotong Shen

Group Pursuit Over a Graph

Extracting grouping structure or identifying homogenous subgroups of predictors in regression is crucial for high-dimensional data analysis. When captured in a regression model, grouping enables researchers to enhance predictive performance and to facilitate a model’s interpretability. Grouping pursuit extracts homogenous subgroups of predictors most responsible for outcomes of a response.

This project explores gene networks with regard to progression of a disease. The researchers will address computational issues by developing algorithms using an optimization package, Cplex, to handle the large-scale problem.

Group Member

Yunzhang Zhu, Graduate Student