Optimizing Functional Network Representation of Multivariate Time Series

Zanin, Massimiliano and Sousa, Pedro and Papo, David and Bajo Breton, Ricardo and García Prieto, Juan and Pozo, Francisco del and Menasalvas Ruiz, Ernestina and Boccaletti, Stefano (2012). Optimizing Functional Network Representation of Multivariate Time Series. "Scientific Reports", v. 2 (n. 630); pp. 1-4. ISSN 2045-2322. https://doi.org/10.1038/srep00630.

Description

Title: Optimizing Functional Network Representation of Multivariate Time Series
Author/s:
  • Zanin, Massimiliano
  • Sousa, Pedro
  • Papo, David
  • Bajo Breton, Ricardo
  • García Prieto, Juan
  • Pozo, Francisco del
  • Menasalvas Ruiz, Ernestina
  • Boccaletti, Stefano
Item Type: Article
Título de Revista/Publicación: Scientific Reports
Date: 5 September 2012
ISSN: 2045-2322
Volume: 2
Subjects:
Faculty: Centro de Tecnología Biomédica (CTB) (UPM)
Department: Otro
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

By combining complex network theory and data mining techniques, we provide objective criteria for optimization of the functional network representation of generic multivariate time series. In particular, we propose a method for the principled selection of the threshold value for functional network reconstruction from raw data, and for proper identification of the network's indicators that unveil the most discriminative information on the system for classification purposes. We illustrate our method by analysing networks of functional brain activity of healthy subjects, and patients suffering from Mild Cognitive Impairment, an intermediate stage between the expected cognitive decline of normal aging and the more pronounced decline of dementia. We discuss extensions of the scope of the proposed methodology to network engineering purposes, and to other data mining tasks.

More information

Item ID: 15261
DC Identifier: http://oa.upm.es/15261/
OAI Identifier: oai:oa.upm.es:15261
DOI: 10.1038/srep00630
Official URL: http://www.nature.com/srep/2012/120905/srep00630/full/srep00630.html
Deposited by: Memoria Investigacion
Deposited on: 15 Oct 2013 18:01
Last Modified: 21 Apr 2016 15:18
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