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Joint and Individual Variation Explained (JIVE)

Presented by: 
James Marron University of North Carolina
Date: 
Friday 29th July 2016 - 11:00 to 12:00
Venue: 
INI Seminar Room 2
Abstract: 
A major challenge in the age of Big Data is the integration of disparate data types into a data analysis.  That is tackled here in the context of data blocks measured on a common set of experimental subjects.  This data structure motivates the simultaneous exploration of the joint and individual variation within each data block.  This is done here in a way that scales well to large data sets (with blocks of wildly disparate size), using principal angle analysis, careful formulation of the underlying linear algebra, and differing outputs depending on the analytical goals.  Ideas are illustrated using mortality, cancer and neuroimaging data sets.  This talk reveals several new challenges in network analysis, from a post-JIVE network analysis on the original data types, to an integration of network methods into the heart of the JIVE methodology.
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University of Cambridge Research Councils UK
    Clay Mathematics Institute London Mathematical Society NM Rothschild and Sons