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Complexity Digest's Blog

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Multiscale Information Theory and the Marginal Utility of Information

June 17, 2017 Comments (0)

Complex systems display behavior at a range of scales. Large-scale behaviors can emerge from the correlated or dependent behavior of individual small-scale components. To capture this observation in a rigorous and general way, we introduce a formalism for multiscale information theory. Dependent behavior among system components results in overlapping or shared information. A system’s structure is revealed in the sharing of information across the system’s dependencies, each of which...

How to fight corruption

June 16, 2017 Comments (0)

Anticorruption initiatives are often put forth as solutions to problems of waste and inefficiency in government programs. It’s easy to see why. So often, somewhere along the chain that links the many participants in public service provision or other government activities, funds may get stolen or misdirected, bribes exchanged for preferential treatment, or genuine consumers of public services supplemented by “ghost” users. As a result, corruption reduces economic growth and...

Zika virus evolution and spread in the Americas

June 16, 2017 Comments (0)

One hundred and ten Zika virus genomes from ten countries and territories involved in the Zika virus epidemic reveal rapid expansion of the epidemic within Brazil and multiple introductions to other regions.   Zika virus evolution and spread in the AmericasHayden C. Metsky, et al. Nature 546, 411–415 (15 June 2017) doi:10.1038/nature22402 Source: www.nature.com

The Human Microbiome and the Missing Heritability Problem

June 16, 2017 Comments (0)

The “missing heritability” problem states that genetic variants in Genome-Wide Association Studies (GWAS) cannot completely explain the heritability of complex traits. Traditionally, the heritability of a phenotype is measured through familial studies using twins, siblings and other close relatives, making assumptions on the genetic similarities between them. When this heritability is compared to the one obtained through GWAS for the same traits, a substantial gap between both...


June 16, 2017 Comments (0)

The Kreyon Conference Unfolding the dynamics of creativity and innovation conference will be held in Rome from 6th to 8th of September 2017 at Palazzo delle Esposizioni. The aim of the conference is to gather scientists from many different disciplines (physics, mathematics, computer science, biology, social and cognitive sciences, arts, economics, business) to address fundamental questions about how people express their creativity and innovate both at the individual and collective levels. The...

Collective benefits in traffic during mega events via the use of information technologies

June 14, 2017 Comments (0)

Information technologies today can inform each of us about the route with the shortest time, but they do not contain incentives to manage travellers such that we all get collective benefits in travel times. To that end we need travel demand estimates and target strategies to reduce the traffic volume from the congested roads during peak hours in a feasible way. During large events, the traffic inconveniences in large cities are unusually high, yet temporary, and the entire population may be...

Trilobite ‘pelotons’: possible hydrodynamic drag effects between leading and following trilobites in trilobite queues

June 13, 2017 Comments (0)

Energy saving mechanisms in nature allow following organisms to expend less energy than leaders. Queues, or ordered rows of individuals, may form when organisms exploit the available energy saving mechanism while travelling at near-maximal sustainable metabolic capacities; compact clusters form when group members travel well below maximal sustainable metabolic capacities. The group size range, given here as the ratio of the difference between the size of the largest and smallest group members,...

Efficient method for estimating the number of communities in a network

June 13, 2017 Comments (0)

While there exist a wide range of effective methods for community detection in networks, most of them require one to know in advance how many communities one is looking for. Here we present a method for estimating the number of communities in a network using a combination of Bayesian inference with a novel prior and an efficient Monte Carlo sampling scheme. We test the method extensively on both real and computer-generated networks, showing that it performs accurately and consistently, even in...

Emergent Network Modularity

June 13, 2017 Comments (0)

We introduce a network growth model based on complete redirection: a new node randomly selects an existing target node, but attaches to a random neighbor of this target. For undirected networks, this simple growth rule generates unusual, highly modular networks. Individual network realizations typically contain multiple macrohubs—nodes whose degree scales linearly with the number of nodes N. The size of the network “nucleus”—the set of nodes of degree greater than...

NetSci 2017 – Conference Agenda Manager

June 12, 2017 Comments (0)

NetSci 2017 ConferenceJW Marriott Hotel, Indianapolis, INJune 19 – 23, 2017http://netsci2017.net/ Join us in Indianapolis in June for NetSci 2017! LAST CHANCE TO REGISTER ONLINE Online registration ends Sunday. June 11 at midnight (EDT). After this, only on-site registration will be available.  Complete your conference registration by going to: http://netsci2017.net/registration SEE OUR FULL SCHEDULE: SATELLITES,  SCHOOL, SPEAKERS, SESSIONS, AND POSTERS 22 organized Satellites...