• Medientyp: Bericht; E-Book
  • Titel: Local-global neural networks: a new approach for nonlinear time series modelling
  • Beteiligte: Fariñas, Mayte Suarez [Verfasser:in]; Pedreira, Carloe E. [Verfasser:in]; Medeiros, Marcelo C. [Verfasser:in]
  • Erschienen: Rio de Janeiro: Pontifícia Universidade Católica do Rio de Janeiro (PUC-Rio), Departamento de Economia, 2003
  • Sprache: Englisch
  • Schlagwörter: parameter estimation ; time-series ; neural networks ; sunspot number ; model identifiability ; Neuronale Netze ; model building ; Zeitreihenanalyse ; Theorie ; nonlinear models
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  • Beschreibung: In this paper, the Local Global Neural Networks model is proposed within the context of time series models. This formulation encompasses some already existing nonlinear models and also admits the Mixture of Experts approach. We place emphasis on the linear expert case and extensively discuss the theoretical aspects of the model: stationarity conditions, existence, consistency and asymptotic normality of the parameter estimates, and model identifiability. A model building strategy is also considered and the whole procedure is illustrated with two real time-series.
  • Zugangsstatus: Freier Zugang