Now showing items 1-8 of 8

    • A Computational characterization of collective chaos 

      Delgado Pin, Jordi; Solé, Ricard Vicenç (1998-06)
      Research report
      Open Access
      We suggest that the interaction of a Globally Coupled Map (GCM) with an individual element inside the system is, from a computational point of view, indistinguishable of a mu,epsilon-dependent noise in the turbulent ...
    • A simple spatiotemporal evolution model of a transmission power grid 

      Rosas Casals, Martí; Valverde, Sergi; Solé, Ricard Vicenç (2018-02-22)
      Article
      Open Access
      In this paper, we present a model for the spatial and temporal evolution of a particularly large human-made network: the 400-kV French transmission power grid. This is based on 1) an attachment procedure that diminishes ...
    • Evidence of a noise induced transition in fluid neural networks 

      Delgado Pin, Jordi; Solé, Ricard Vicenç (1995-03)
      Research report
      Open Access
      Submitted to Physica D. Focusing on a phenomenon observed in the temporal patterns of activity behavior of Leptothorax ants, we introduce the notion of Noise Induced Computation. We study, from a Noise Induced Transition ...
    • Evolving protein interaction networks through gene duplication 

      Pastor Satorras, Romualdo; Smith, E; Solé, Ricard Vicenç (2003-05-21)
      Article
      Open Access
      The topology of the proteome map revealed by recent large-scale hybridization methods has shown that the distribution of protein–protein interactions is highly heterogeneous, with many proteins having few edges while a few ...
    • Field theory for a reaction-diffusion model of quasispecies dynamics 

      Pastor Satorras, Romualdo; Solé, Ricard Vicenç (2001-10-24)
      Article
      Open Access
      RNA viruses are known to replicate with extremely high mutation rates. These rates are actually close to the so-called error threshold. This threshold is in fact a critical point beyond which genetic information is lost ...
    • Mean field theory of fluid neural networks 

      Delgado Pin, Jordi; Solé, Ricard Vicenç (1997-06)
      Research report
      Open Access
      Fluid Neural Networks (FNN) are a mathematical framework where the phenomenon of self-synchronization in ant colonies can be explained, predicting the model a critical density, i.e. a density where oscillations appear, ...
    • Pattern formation and optimization in army ant raids 

      Solé, Ricard Vicenç; Bonabeau, Eric; Fernández, P.; Delgado Pin, Jordi; Marín Sánchez, Jesús (1999-12)
      Research report
      Open Access
      Army ant colonies display complex foraging raid patterns involving thousands of individuals communicating through chemical trails. In this paper we explore, by means of a simple search algorithm, the properties of these ...
    • Self-synchronization and task fulfilment in ant colonies 

      Delgado Pin, Jordi; Solé, Ricard Vicenç (1999-12-01)
      Research report
      Open Access
      Some authors have hypothesized that the observed self-synchronized activity in ant colonies provides some adaptive advantages, and, in particular, it has been suggested that task realization may benefit from this ordered ...