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Complexity Digest's Blog

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Identifying influential spreaders and efficiently estimating the number of infections in epidemic models: a path counting approach

March 16, 2012 Comments (0)

We introduce a new method to efficiently approximate the number of infections resulting from a given initially-infected node in a network of susceptible individuals, based on counting the number of possible infection paths of various lengths to each other node in the network. We analytically study the properties of our method systematically, in particular demonstrating different forms for SIS and...

The role of strong and weak ties in Facebook: a community structure perspective

March 16, 2012 Comments (0)

In this paper we report our findings on the analysis of two large datasets representing the friendship structure of the well-known Facebook network. In particular, we discuss the quantitative assessment of the strength of weak ties Granovetter's theory, considering the problem from the perspective of the community structure of the network. We describe our findings providing some clues of the...

Evolutionary game dynamics in populations with different learners

March 16, 2012 Comments (0)

We study evolutionary game theory in a setting where individuals learn from each other. We extend the traditional approach by assuming that a population contains individuals with different learning...
Journal of Theoretical Biology

Win-Stay-Lose-Learn Promotes Cooperation in the Spatial Prisoner's Dilemma Game

March 16, 2012 Comments (0)

[...] we introduce an aspiration-based win-stay-lose-learn strategy updating rule into the spatial prisoner's dilemma game. The rule is simple and intuitive, foreseeing strategy changes only by dissatisfied players, who then attempt to adopt the strategy of one of their nearest neighbors, while the strategies of satisfied players are not subject to...

Noisy Information and Computational Complexity

March 16, 2012 Comments (0)

This book deals with the computational complexity of mathematical problems for which available information is partial, noisy and priced. The author develops a general theory of computational complexity of continuous problems with noisy information and gives a number of applications; he considers deterministic as well as stochastic noise. He also presents optimal algorithms, optimal...
Cambridge University Press

Complexity, Analysis and Control of Singular Biological Systems

March 16, 2012 Comments (0)

This book follows the control of real-world biological systems at both ecological and phyisological levels concentrating on the application of now-extensively-investigated singular system theory. Much effort has recently been dedicated to the modelling and analysis of developing bioeconomic systems and the text establishes singular examples of these, showing how proper control can help to...

Event Announcements

March 16, 2012 Comments (0)

6th International Workshop on Natural Computing, Tokyo, Japan, 2012/03/28-30 IPCAT 2012: Ninth International Conference on Information Processing in Cells and Tissues, Cambridge, United Kingdom, 2012/03/31-04/02 21st European Meeting on Cybernetics and Systems Research, Vienna, Austria, 2012/04/10-13 Self-* Systems – Biological Foundations and Technological Applications. ...

Video Announcements

March 16, 2012 Comments (0)

Complexity Digest videos and Webcast Archive. Lakeside Labs videos. FuturICT videos. Brain-Mind Institute webinars [email protected] seminars. ASSYST Digital Library. TED Talks. Edge Videos CERN Webcast Service. Dean LeBaron's Video Casts....

Other Announcements

March 16, 2012 Comments (0)

ASSYSTComplexity One of the main goals of the ASSYST Coordination Action is to promote Complex Systems for Socially Intelligent ICT (COSI-ICT) and, more generally, Complex Systems (CS) Science in Europe and Worldwide. We do this by communicating widely with scientists, policy makers, and business people, and by showcasing success stories of CS applications. Job openings in Complex Systems ...

Alan Turing at 100

March 3, 2012 Comments (0)

Image credit: Andy Potts;Turing family Alan Turing, born a century ago this year, is best known for his wartime code-breaking and for inventing the 'Turing machine' – the concept at the heart of every computer today. But his legacy extends much further: he founded the field of artificial intelligence, proposed a theory of biological pattern formation and speculated about the limits of...