Stigmergy Stigmergy is a mechanism of indirect coordination between agents or actions. The principle is that the trace left in the environment by an action stimulates the performance of a next action, by the same or a different agent. In that way, subsequent actions tend to reinforce and build on each other, leading to the spontaneous emergence of coherent, apparently systematic activity. Stigmergy is a form of self-organization. Computational social science: Making the links Jon Kleinberg's early work was not for the mathematically faint of heart. His first publication1, in 1992, was a computer-science paper with contents as dense as its title: 'On dynamic Voronoi diagrams and the minimum Hausdorff distance for point sets under Euclidean motion in the plane'. That was before the World-Wide Web exploded across the planet, driven by millions of individual users making independent decisions about who and what to link to. And it was before Kleinberg began to study the vast array of digital by-products generated by life in the modern world, from e-mails, mobile phone calls and credit-card purchases to Internet searches and social networks.
Applying algorithm to social networks can reveal hidden connections criminals use to commit fraud Fraudsters beware: the more your social networks connect you and your accomplices to the crime, the easier it will be to shake you from the tree. The Steiner tree, that is. In an article recently published in the journal Computer Fraud and Security, University of Alberta researcher Ray Patterson and colleagues from the University of Connecticut and University of California – Merced outlined the connection linking fraud cases and the algorithm designed by Swiss mathematician Jakob Steiner.
Collective Intelligence in Social Insects It wasn't so long ago that the waggledance of the honey bee, the nest-building of the social wasp, and the construction of the termite mound were considered a somewhat magical aspect of nature. How could these seemingly uncommunicative, certainly very simple creatures be responsible for such epic feats of organisation and creativity? Over the last fifty years biologists have unravelled many of the mysteries surrounding social insects, and the last decade has seen an explosion of research in fields variously referred to as Collective Intelligence, Swarm Intelligence and emergent behaviour. Even more recently the swarm paradigm has been applied to a broader range of studies, opening up new ways of thinking about theoretical biology, economics and philosophy.
Mapping Twitter Topic Networks: From Polarized Crowds to Community Clusters Polarized Crowds: Political conversations on Twitter Conversations on Twitter create networks with identifiable contours as people reply to and mention one another in their tweets. These conversational structures differ, depending on the subject and the people driving the conversation. Six structures are regularly observed: divided, unified, fragmented, clustered, and inward and outward hub and spoke structures. Ragman Roll What was the Ragman Roll? The Ragman Roll refers to one of two collections of documents which listed the names of the Scots men and women who promised fealty to Edward I of England; the first (and smaller) of which was compiled between the meeting between Edward I and the Scottish nobility at Norham in May 1291 and the final award of the throne of Scotland to John Balliol in November 1292 the second and larger of which was compiled in the summer of 1296 whilst Edward I toured Scotland prior to the parliament held at Berwick-upon-Tweed in the August if that year The term is more often than not used exclusively to referred to the second of the two. This consisted of four great rolls of parchment on which the great and the good of Scotland recorded their submission to Edward I and vowed to be faithful to the king of England. Although the original document has not survived a copy was preserved and is now kept at the Public Record Office in London.
Pierre-Paul Grassé Pierre-Paul Grassé Pierre-Paul Grassé (November 27, 1895, Périgueux (Dordogne) – July 9, 1985) was a French zoologist, author of over 300 publications including the influential 52-volume Traité de Zoologie. He was an expert on termites. Facebook feelings are contagious: Study examines how emotions spread online You can’t catch a cold from a friend online. But can you catch a mood? It would seem so, according to new research from the University of California, San Diego. Medieval Games in Europe In exploring the games played in Medieval Europe, we'll just find out that the people of those times were no different from us, as they were fond of public amusements and they did their best to make their time pass agreeably. In the early Norman times the favorite sports of the Medieval people were bowling, fencing with sword and buckler, the sword dance, and wrestling. At a later period came the Quintain. The nobles had their own preferred games: tournaments including fencing, and hunting.
Emergence in stigmergic and complex adaptive systems: A formal discrete event systems perspective Volume 21, March 2013, Pages 22–39 Stigmergy in the Human Domain Edited By Margery J. Doyle and Leslie Marsh Abstract Complex systems have been studied by researchers from every discipline: biology, chemistry, physics, sociology, mathematics and economics and more.
Measuring Large-Scale Social Networks with High Resolution This paper describes the deployment of a large-scale study designed to measure human interactions across a variety of communication channels, with high temporal resolution and spanning multiple years—the Copenhagen Networks Study. Specifically, we collect data on face-to-face interactions, telecommunication, social networks, location, and background information (personality, demographics, health, politics) for a densely connected population of 1 000 individuals, using state-of-the-art smartphones as social sensors. Here we provide an overview of the related work and describe the motivation and research agenda driving the study. Additionally, the paper details the data-types measured, and the technical infrastructure in terms of both backend and phone software, as well as an outline of the deployment procedures. We document the participant privacy procedures and their underlying principles. Figures
Ludic interface Student experiment in Interface Design developed at UP Valencia In Human-computer interaction, ludic Interfaces is the name for a discipline and for a type of user interfaces. Ludic interfaces are playful interfaces. A mind-boggling sculpture that crawls with a mind of Its own Someday, not too long from now, you could be walking through a park and pass by a metal structure that looks a lot like a modernist jungle gym. But it's not a playground, at least, not really. Rather, this geometric form is a moving piece of architecture that responds to both you and its surroundings like a stray animal might. The Emerging Science of Superspreaders (And How to Tell If You're One Of Them) Who are the most influential spreaders of information on a network? That’s a question that marketers, bloggers, news services and even governments would like answered. Not least because the answer could provide ways to promote products quickly, to boost the popularity of political parties above their rivals and to seed the rapid spread of news and opinions. So it’s not surprising that network theorists have spent some time thinking about how best to identify these people and to check how the information they receive might spread around a network. Indeed, they’ve found a number of measures that spot so-called superspreaders, people who spread information, ideas or even disease more efficiently than anybody else. But there’s a problem.