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Tucker core

Thursday, January 28, 2016 - 10:15am - 11:05am
Shuzhong Zhang (University of Minnesota, Twin Cities)
This talk presents two parts of results related to tensor computations. The first part is on a new matricization approach, resulting in lower and upper approximations for the CP-rank. In this part, theoretical properties of the new ranks (to be called the M-ranks) will be discussed, with applications to solve the low CP-rank tensor completion problem. The second part establishes the equivalence between a tensor and its Tucker core, in terms of the CP-rank, the Schatten norms, and the Z-eigenvalues of tensors.
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