LDRD final report : leveraging multi-way linkages on heterogeneous data.

Dunlavy, Daniel M. ; Kolda, Tamara Gibson (Sandia National Laboratories, Livermore, CA)

Sandia National Laboratories

关键词: Data Analysis;    Factorization;    97 Mathematical Methods And Computing;    Computer Calculations;   

DOI  :  10.2172/1008126
RP-ID  :  SAND2010-6357
RP-ID  :  AC04-94AL85000
RP-ID  :  1008126

美国|英语

来源: UNT Digital Library

【 摘 要 】

This report is a summary of the accomplishments of the 'Leveraging Multi-way Linkages on Heterogeneous Data' which ran from FY08 through FY10. The goal was to investigate scalable and robust methods for multi-way data analysis. We developed a new optimization-based method called CPOPT for fitting a particular type of tensor factorization to data; CPOPT was compared against existing methods and found to be more accurate than any faster method and faster than any equally accurate method. We extended this method to computing tensor factorizations for problems with incomplete data; our results show that you can recover scientifically meaningfully factorizations with large amounts of missing data (50% or more). The project has involved 5 members of the technical staff, 2 postdocs, and 1 summer intern. It has resulted in a total of 13 publications, 2 software releases, and over 30 presentations. Several follow-on projects have already begun, with more potential projects in development.