Events / Colloquium by Yun Song

Colloquium by Yun Song

March 17, 2017
3:00 pm - 4:00 pm

Title: Beyond matrices: functional properties and decompositions of higher-order tensors

Speaker: Yun Song (UPenn Math and Biology Departments)

Location: DRL A4

Time: March 17, 2017, 3:00PM – 4:00PM

Abstract: Recently, tensors of order 3 or greater, known as higher-order tensors, have attracted increased attention in many fields across science and engineering.  Methods built on tensors provide powerful tools to capture complex structures in data that lower-order methods may fail to exploit.  Unfortunately, extending familiar matrix concepts to higher-order tensors is not straightforward, and indeed it has been shown that most computational problems for tensors are NP-hard.  In this talk, I will present some theoretical results on functional properties of tensors that have practical applications, including tensor decompositions.