A robust Tucker3 model for three-way compositional data is presented. The algorithm to compute the Tucker3 parameters is based on ALS procedure implemented with robust alternative measures as Comedian and correlation median. The algorithm is able to capture the features of the complex structure, avoiding the information loss problem that occurs when two-way analysis techniques are adopted and the outliers effects. Some evidences are illustrated performing the model to macroeconomic compositional data.

A robust Parafac model for compositional data

DI PALMA MA
;
GALLO M;
2017-01-01

Abstract

A robust Tucker3 model for three-way compositional data is presented. The algorithm to compute the Tucker3 parameters is based on ALS procedure implemented with robust alternative measures as Comedian and correlation median. The algorithm is able to capture the features of the complex structure, avoiding the information loss problem that occurs when two-way analysis techniques are adopted and the outliers effects. Some evidences are illustrated performing the model to macroeconomic compositional data.
File in questo prodotto:
File Dimensione Formato  
AS5650475211694081511729235978_content_1.pdf

solo utenti autorizzati

Descrizione: Articolo principale
Tipologia: Documento in Post-print
Licenza: DRM non definito
Dimensione 2.29 MB
Formato Adobe PDF
2.29 MB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11574/120417
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
social impact