Andrea Marcozzi

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Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the policies page. Summary. Many peer-to-peer (P2P) applications require that nodes behave altruistically in order to perform tasks(More)
Recent work has shown how socially inspired mechanisms developed within social science simulations can be applied to a number of application domains in distributed systems engineering. Here we proposed a general mechanism based on an evolutionary " group selection " process in which individual entities (agents, nodes or components) dynamically copy the(More)
Nodes in a network often store and serve content to other nodes. However, each has a finite capacity and if requests for specific content exceed the capacity of the nodes serving it then queries fail. It is generally not possible for a priori predictions of load demand because at given times some content may suddenly become popular and at others hardly(More)
Recent work has proposed how socially inspired mechanisms, based on " tags " and developed within social science simulations, might be applied in peer-to-peer overlay networks to maintain high cooperation between peers even when they act selfishly. The proposed mechanism involves a dynamic rewiring algorithm called " SLAC ". The algorithm assumes a random(More)
The increasing knowledge intensity of jobs, typical of a knowledge economy, highlight the role of firms as integrators of know how and skills. As economic activity becomes mainly intellectual and requires the integration of specific and idiosyncratic skills, traditional hierarchical control may result increasingly ineffective. In this work, we explore under(More)
The aim of this study was to investigate attachment styles in a group of women and men with sexual dysfunction. We recruited 44 subjects (21 women and 23 men) with sexual dysfunction and 41 subjects (21 women and 20 men) with healthy sexual function as the control group. Validated instruments for the evaluation of male and female sexual dysfunctions (M/F(More)
This report comprises the report for the D4.3.3 deliverable (in association with the relevant software 1) for workpackage WP4.3 in Subproject SP4 of the DELIS (Dynamically Evolving Large-scale Information Systems) Integrated Project. The essential goal of the DELIS project is to understand, predict, engineer and control large evolving information systems.(More)
This report comprises the complete D5.3.1 deliverable as specified for workpackage WP5.3 in Subpro-ject SP5 of the DELIS (Dynamically Evolving Large-scale Information Systems) Integrated Project. The essential goal of the DELIS project is to understand, predict, engineer and control large evolving information systems. The main aim of this workpackage is to(More)