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  • Publication details - IFISC
    using the Reservoir Computing paradigm In this paper we show that their range of applicability can be greatly extended if we use gradient descent with backpropagation through time on a model of the system to optimize the input encoding of such systems We perform physical experiments that demonstrate that the obtained input encodings work well in reality and we show that optimized systems perform significantly better than the common Reservoir

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2672 (2016-02-15)
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  • Publication details - IFISC
    Contacte Publicacions A complex network theory approach to oceanic and atmospheric transport phenomena Ser Giacomi Enrico Supervisors Hernandez García Emilio López Cristóbal PhD Thesis 2015 Fitxers Ser Giacomi thesis pdf 10945542 Bytes Tornar a la llista de publicacions Cerca publicacions Conté la paraula es Operador AND OR NOT Paraules adicionals Línia d investigació Totes Complex Quantum Optics Fluids Biosystems Social Outreach Cerca avançada Xerrades i Presentacions Cercar a les bases

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2660 (2016-02-15)
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  • Publication details - IFISC
    discusses the modeling of fiber cavities in terms of the Lugiato Lefever model and describes the effect of periodic pumping in ring cavities In fiber cavities and microresonators inhomogeneities and drift are unavoidable due to imperfections in the fabrication process material properties and higher order chromatic light dispersion In the context of fiber cavities and microresonators periodic boundary conditions lead to the emission of a train of solitons from the

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2707 (2016-02-15)
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  • Publication details - IFISC
    unpredictability Oliver Neus Supervisor Fischer Ingo PhD Thesis 2015 Fitxers TesisNeus pdf 31450477 Bytes Tornar a la llista de publicacions Cerca publicacions Conté la paraula es Operador AND OR NOT Paraules adicionals Línia d investigació Totes Complex Quantum Optics Fluids

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2671 (2016-02-15)
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  • Publication details - IFISC
    a functional network approach to determine land use patterns from mobile phone records The versatility of the method allows us to run a systematic comparison between Spanish cities of various sizes The method detects four major land use types that correspond to different temporal patterns The proportion of these types their spatial organization and scaling show a strong similarity between all cities that breaks down at a very local scale

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2669 (2016-02-15)
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  • Publication details - IFISC
    several key topics in Complexity Science such as complex networks cascading failures and percolation One example is flight delays that have usually the origin in primary events localized in limited areas of the network but can later multiply and magnify as the daily operations go along Given the large costs that delays convey it is important to characterize their propagation and to model with predictive power the potential components or areas of the network affected In this paper we discuss the validation of an agent based model developed within the framework of the SESAR WP E TREE project and aiming at simulating the propagation of delay in the ECAC airport network Simulation outcomes are systematically confronted with empirical flight performance the results show a good level of agreement with accuracies and precisions Furthermore we use the model to assess the effect on delay reduction in the network of two delay reduction scenarios dropping passenger connections if the delay induced goes beyond a given threshold τ or decreasing the service time of aircraft in the airports if they delay is larger than a given value Our results show how optimal values of τ and can be found within the simulation framework

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2683 (2016-02-15)
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  • Publication details - IFISC
    of diversity induced resonance and of the constructive role of heterogeneity in complex systems here we study a generalized version of a physiologically motivated sleep wake cycle model taking into account the role of orexin M Patriarca E Hernandez Garcia R Toral S Postnova H A Braun PLoS Comput Biol 8 2012 e1002650 S Postnova K Voigt H A Braun J Biol Rhythms 24 2009 523 With respect to the versions of the model studied previously here we consider systems containing both a set of orexin neurons responsible for the production of orexin and a set of glutaminergic neurons representing mental activity or sleep depending on their firing or silent state respectively within some basic network topologies The neurons of one or both types are diversified and it is shown how the interplay between the heterogeneous constituent units produces as an emergent effect the recovering or improving of the sleep wake cycle At a general level the results obtained suggest that also systems with a dynamics driven by a homeostatic mechanism with a time scale much longer than that of the constituent excitable units may present diversity induced resonance DOI 10 1016 j chaos 2015 09 010 Fitxers HomeostaticDiversity pdf

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2644 (2016-02-15)
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  • Publication details - IFISC
    de feina Contacte Publicacions Complex dynamics of delay coupled lasers fundamentals and applications Porte Xavier Supervisors Ingo Fischer Miguel C Soriano PhD Thesis 2015 Fitxers Tesis xaviporte pdf 15683490 Bytes Tornar a la llista de publicacions Cerca publicacions Conté la paraula es Operador AND OR NOT Paraules adicionals Línia d investigació Totes Complex Quantum Optics Fluids Biosystems Social Outreach Cerca avançada Xerrades i Presentacions Cercar a les bases de dades

    Original URL path: http://ifisc.uib-csic.es/publications/publication-detail.php?indice=2668 (2016-02-15)
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