Tensor-Based Two-Layer Decoupling of Multivariate Polynomial Maps

Konstantin Usevich, Yassine Zniyed, Mariya Ishteva, Philippe Dreesen, André L. F. de Almeida

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingAcademicpeer-review

Abstract

In this paper, we introduce a new decomposition of multivariate maps that generalizes the decoupling problem recently proposed in the system identification community. In the context of neural networks, this decomposition can be seen as a two-layer feedforward network with flexible activation functions. We show that for such maps the Jacobian and Hessian tensors admit Para Tuck and CP decompositions respectively. We propose a methodology to perform the two-layer decoupling of the given polynomial maps based on joint Para Tuck and CP decomposition, by combining first and second-order information.
Original languageEnglish
Title of host publication2023 31st European Signal Processing Conference (EUSIPCO)
PublisherThe IEEE
Pages655-659
Number of pages5
ISBN (Print)979-8-3503-2811-0
DOIs
Publication statusPublished - 8 Sept 2023
Event2023 31st European Signal Processing Conference (EUSIPCO) - Helsinki, Finland
Duration: 4 Sept 20238 Sept 2023
http://eusipco2023.org/

Conference

Conference2023 31st European Signal Processing Conference (EUSIPCO)
Abbreviated titleEUSIPCO 2023
Country/TerritoryFinland
CityHelsinki
Period4/09/238/09/23
Internet address

Keywords

  • Jacobian matrices
  • Tensors
  • Europe
  • Signal processing
  • System identification
  • Feedforward neural networks

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