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Joint and Individual Variation Explained (JIVE)

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SNA - Theoretical foundations for statistical network analysis

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.

This talk is part of the Isaac Newton Institute Seminar Series series.

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