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.