Improved Uniqueness Conditions for Canonical Tensor Decompositions with Linearly Dependent Loadings

Alwin Stegeman*, Tam T. T. Lam

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

10 Citations (Scopus)
260 Downloads (Pure)

Abstract

In this paper, we derive improved uniqueness conditions for a constrained version of the canonical order-3 tensor decomposition, also known as Candecomp/Parafac (CP). CP decomposes a three-way array into a prespecified number of outer product arrays. The constraint is that some vectors forming the outer product arrays are linearly dependent according to a prespecified pattern. This is known as the PARALIND family of decompositions. We provide both uniqueness conditions and partial uniqueness conditions for PARALIND, and show that these are improved and more precise variants of existing conditions. Our results are illustrated by means of examples.

Original languageEnglish
Pages (from-to)1250-1271
Number of pages22
JournalSIAM Journal on Matrix Analysis and Applications
Volume33
Issue number4
DOIs
Publication statusPublished - 2012

Keywords

  • PARALIND
  • CONFAC
  • parafac
  • candecomp
  • tensor decomposition
  • uniqueness
  • INDEPENDENT COMPONENT ANALYSIS
  • LOW-RANK APPROXIMATION
  • DS-CDMA SIGNALS
  • CANDECOMP/PARAFAC MODEL
  • DIVERGING COMPONENTS
  • ORDER TENSOR
  • 3-WAY ARRAYS
  • BLOCK TERMS
  • X-2 ARRAYS
  • SYSTEMS

Fingerprint

Dive into the research topics of 'Improved Uniqueness Conditions for Canonical Tensor Decompositions with Linearly Dependent Loadings'. Together they form a unique fingerprint.

Cite this