Identification of Informative Subgraphs in Complex Systems

Conference: NDES 2012 - Nonlinear Dynamics of Electronic Systems
07/11/2012 - 07/13/2012 at Wolfenbüttel, Germany

Proceedings: NDES 2012

Pages: 4Language: englishTyp: PDF

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Stramaglia, Sebastiano; Pellicoro, Mario (Dipartimento di Fisica, Universitá di Bari, Italy, INFN Sezione di Bari, Italy)
Marinazzo, Daniele; Wu, Guo-Rong (Faculty of Psychology, Educational Sciences, Department of Data Analysis, Ghent University, Henri Dunantlaan 1, 9000 Ghent, Belgium)

An approach to put in evidence multiplets of variables, providing information for the future state of a subsystem, is proposed. The method employs an exact expansion of the transfer entropy; significant multiplets are associated to informational circuits present in the system, with an informational character (synergetic or redundant) which can be related to the sign of the contribution. We also present preliminary results on an fMRI data set.