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Memorias de investigación
Ponencias en congresos:
Consensus-Based Distributed Component Analysis
Año:2010
Áreas de investigación
  • Procesado y análisis de la señal
Datos
Descripción
Principal component analysis is a powerful technique for data analysis and compression, with a wide range of potential applications in wireless sensor networks. However, its centralized implementation, with a fusion center collecting all the samples, is inefficient in terms of energy consumption, scalability, and fault tolerance. Previous distributed approaches reduce the communication cost, but not the lack of flexibility, as they require multi-hop communications if the network is not fully connected. We present two fully distributed consensus-based algorithms that are guaranteed to converge to the global results, using only local communications among neighbors, regardless of the data distribution or the sparsity of the network: CBDPCA is based on finding the eigenvectors of local covariance matrices, while CB-EM-DPCA is a distributed version of the expectation maximization algorithm. Both offer a flexible trade-off between the tightness of the achieved approximation and the associated communication cost.
Internacional
Si
Nombre congreso
IEEE International Workshop on Signal Processing Advances for Wireless Communications SPAWC 2010
Tipo de participación
960
Lugar del congreso
Revisores
Si
ISBN o ISSN
978-1-4244-6990-1
DOI
Fecha inicio congreso
20/06/2010
Fecha fin congreso
23/06/2010
Desde la página
1
Hasta la página
5
Título de las actas
Proceedings of IIEEE International Workshop on Signal Processing Advances for Wireless Communications SPAWC 2010
Esta actividad pertenece a memorias de investigación
Participantes
  • Autor: Sergio Valcarcel Macua (UPM)
  • Autor: Pavle Belanovic (UPM)
  • Autor: Santiago Zazo Bello (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Grupo de Aplicaciones del Procesado de Señal (GAPS)
  • Departamento: Señales, Sistemas y Radiocomunicaciones
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