Polytechnic University of Turin

About: Polytechnic University of Turin is a education organization based out in Turin, Piemonte, Italy. It is known for research contribution in the topics: Finite element method & Nonlinear system. The organization has 11553 authors who have published 41395 publications receiving 789320 citations. The organization is also known as: POLITO & Politecnico di Torino.

The physics of higher-order interactions in complex systems

Abstract: Complex networks have become the main paradigm for modelling the dynamics of interacting systems. However, networks are intrinsically limited to describing pairwise interactions, whereas real-world systems are often characterized by higher-order interactions involving groups of three or more units. Higher-order structures, such as hypergraphs and simplicial complexes, are therefore a better tool to map the real organization of many social, biological and man-made systems. Here, we highlight recent evidence of collective behaviours induced by higher-order interactions, and we outline three key challenges for the physics of higher-order systems. Network representations of complex systems are limited to pairwise interactions, but real-world systems often involve higher-order interactions. This Perspective looks at the new physics emerging from attempts to characterize these interactions.

High-level power modeling, estimation, and optimization

Abstract: In the past, the major concern of the VLSI designers werearea, performance, cost, and reliability.In recent years,however, this has changed and, increasingly, power is beinggiven comparable weight to area and speed.This is mainlydue to the remarkable success of personal computing devicesand wireless communication systems, which demandhigh-speed computation and complex functionality with lowpower consumption.In addition, there exists a strong pressurefor manufacturers of high-end products to keep powerunder control.The main driving factors for lower powerdissipation in these products are the costs associated withpackaging and cooling, and circuit reliability.Tools for the automatic design of low-power VLSI systemshave thus become mandatory.More specifically, followinga natural trend, interests of researchers have latelyshifted to the investigation of high-level power modeling,estimation, synthesis, and optimization techniques that accountfor power dissipation as the primary cost factor.This paper provides a non-exhaustive survey of the mostsuccessful and innovative ideas in this area that have appearedin the literature in the last few years.