Now showing items 1-9 of 9

    • A study of the air-sea interaction in the South Atlantic Convergence Zone through Granger causality 

      Tirabassi, Giulio; Masoller Alonso, Cristina; Barreiro, Marcelo (Wiley, 2015-10-01)
      Article
      Open Access
      Air-sea interaction in the region of the South Atlantic Convergence Zone (SACZ) is studied using Granger causality (GC) as a measure of directional coupling. Calculation of the area weighted connectivity indicates that the ...
    • Analysis of noise-induced temporal correlations in neuronal spike sequences 

      Reinoso, Jose A.; Torrent Serra, Maria del Carmen; Masoller Alonso, Cristina (2016-11-01)
      Article
      Open Access
      We investigate temporal correlations in sequences of noise-induced neuronal spikes, using a symbolic method of time-series analysis. We focus on the sequence of time-intervals between consecutive spikes (inter-spike-intervals, ...
    • Análisis de series temporales: Uso del transporte público en Barcelona 

      El Amrani Joutey, El Habib (Universitat Politècnica de Catalunya, 2020-07-14)
      Bachelor thesis
      Open Access
      Avui dia existeixen diversos models d'anàlisi de sèries temporals. En el present TFG es pretén realitzar un estudi comparatiu sobre diferents models: ARIMA, SARIMA i Holt-Winters aplicats a l'evolució de l'transport públic ...
    • Combining learning in model space fault diagnosis with data validation/reconstruction: Application to the Barcelona water network 

      Quevedo Casín, Joseba Jokin; Chen, Heran; Cugueró Escofet, Miquel Àngel; Tino, Peter; Puig Cayuela, Vicenç; García Valverde, Diego; Sarrate Estruch, Ramon; Yao, Xin (2014-02-14)
      Article
      Restricted access - publisher's policy
      In this paper, an integrated data validation/reconstruction and fault diagnosis approach is proposed for critical infrastructure systems. The proposed methodology is implemented in a two-stage approach. In the first stage, ...
    • Comparación de correctores automáticos de artefactos en series RR 

      Benítez Herrera, Adolfo (Universitat Politècnica de Catalunya, 2013-02-08)
      Master thesis (pre-Bologna period)
      Open Access
      [ANGLÈS] This End of Degree Project (EDP) analyzes three commercial software which correct Hear Rate Variability (HRV) RR time series. The analysis was performed by entering the RR time series in each program with an ...
    • Inferring directed climatic interactions with renormalized partial directed coherence and directed partial correlation 

      Tirabassi, Giulio; Sommerlade, Linda; Masoller Alonso, Cristina (Institute of Physics (IOP), 2017-03-22)
      Article
      Open Access
      Inferring interactions between processes promises deeper insight into mechanisms underlying network phenomena. Renormalised partial directed coherence is a frequency-domain representation of the concept of Granger causality, ...
    • Multiple, large separation site diversity 

      Álvaro Serón, Daniel (Universitat Politècnica de Catalunya / Politecnico di Milano, 2012-09)
      Master thesis (pre-Bologna period)
      Open Access
      Covenantee:   Politecnico di Milano
      [ANGLÈS] Nowadays, it is usual that Earth-Space communications make use of high frequency bands like the Ka-band and above due to the fact that lower bands are saturated and higher capacities are needed. However, at these ...
    • Multiple-fault detection and identification scheme based on hierarchical self-organizing maps applied to an electric machine 

      Saucedo Dorantes, Juan Jose; Delgado Prieto, Miquel; Romero Troncoso, René; Osornio Rios, Roque A. (2019-08-01)
      Article
      Open Access
      Strategies of condition monitoring applied to electric motors play an important role in the competitiveness of multiple industrial sectors. However, the risk of faults coexistence in an electric motor and the overlapping ...
    • Scale-free networks emerging from multifractal time series 

      Budroni, Marcello A.; Baronchelli, Andrea; Pastor Satorras, Romualdo (American Chemical Society (ACS), 2017-05-16)
      Article
      Open Access
      Methods connecting dynamical systems and graph theory have attracted increasing interest in the past few years, with applications ranging from a detailed comparison of different kinds of dynamics to the characterization ...