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Stigmergy

Stigmergy
Stigmergy is a mechanism of indirect coordination between agents or actions.[1] 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. It produces complex, seemingly intelligent structures, without need for any planning, control, or even direct communication between the agents. As such it supports efficient collaboration between extremely simple agents, who lack any memory, intelligence or even individual awareness of each other.[1] History[edit] The term "stigmergy" was introduced by French biologist Pierre-Paul Grassé in 1959 to refer to termite behavior. Stigmergy is now one of the key[4] concepts in the field of swarm intelligence. Stigmergic behavior in lower organisms[edit] Applications[edit] Related:  Swam IntelligenceSTIGMERGY / COMPLEX ADAPTIVE SYSTEMS

Stigmergic Simulations | manwithoutqualities Here are some terrific stigmergic simulations by architectural student Yang Chenghan that I chanced across: The first is a 3D simulation deploying 45-70 agents (source code) The second a 2D simulation deploying 20-30 agents (source code) Here are some great synthetic stigmergic stills Yang has created. 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. In the Beginning Konrad Lorenz (1903-1989) is widely credited as being the father of ethology, the study of animal behaviour, with his early work on imprinting and instinctive behaviour, however it might be argued that an even earlier pioneer of the field was a South African, Eugène Marais (1872-1936). Like many geniuses, Marais' life ended in tragedy. Stigmergy: Invisible Writing Self Organisation

The use of Swarm Intelligence to generate architectural form Swarm modelling. The use of Swarm Intelligence to generate architectural form. Pablo Miranda Carranza Dipl ArchMSc CECA University of EastLondon Holbrook rd Stratford London E15 3EA e-mail: merluza@altavista.com Paul Coates AA Dipl CECA University of EastLondon e-mail: p.s.coates@uel.ac.uk Abstract The reason for choosing swarms as a study case is the fascination of the simplicity of its mechanics and its complexity as a phenomenon. This paper describes the swarms understanding them as examples of sensori-motor intelligence. In general the paper discusses the morphogenetic properties of swarm behaviour, and presents an example of mapping trajectories in the space of forms onto 3d flocking boids. Earlier work with autonomous agents at CECA [27, 28] were concerned with the behaviour of agents embedded in an environment, and interactions between perceptive agents and their surrounding form. 1. W. Inspired by Grey.W. automaton moving on an environment 1.1 Structural coupling 2. Diagram of the swarm.

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. Biography[edit] Education[edit] Grassé began his studies in Périgueux where his parents owned a small business. Grassé continued his studies in Paris, focusing exclusively on science. In 1926, Grassé became vice-director of the École supérieure de sériciculture. Teaching and research[edit] In 1929, Grassé became professor of zoology at the Université de Clermont-Ferrand. In 1935, he became an Assistant Professor at the Université de Paris where he worked alongside Germaine Cousin (1896–1992), and received the Prix Gadeau de Kerville de la Société entomologique de France for his work on orthoptera and termites. Publications[edit] He also composed the Termitologia (1982, 1983, 1984), a work in three volumes totalling over 2400 pages. Annex[edit] Works[edit]

stickmergy philadelphia PENNSYLVANIA suckerPUNCH: describe your project. so SUGITA / dwight ENGEL / dale SUTTLE: Stickmergy is built by two competing but dependent agent-based systems. The first uses the interaction of its agents, or people, to define spaces in the building. People of different intentions are attracted to each other and together define programmatic spaces at a point in time. The spaces are solidified by the second system– randomly moving particles that generate a 4″x4″x6′ stick when they come in contact with a programmatic space. Single sticks can be removed by the people, but as the number of sticks increases, together they are able to interfere with the movement of the people agents and permanently define a wall or floor. sP: what or who influenced this project? dS: Cecil Balmond, Roland Snooks, Agent-based Design, Stigmergy, Swarms, Self-organization, Network theory, Systems theory. sP: what were you reading/listening to/watching while developing this project? Additional credits:

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. Keywords Stigmergy; Complex adaptive systems; Emergence; Self-organization; DEVS; Dynamic structure; Scale-free networks; Artificial systems Copyright © 2012 Elsevier B.V.

swarm urbanism | BLACK ROOM 641A Some inspiration from kokkugia… From the project Swarm Urbanism… “Agency operates through two main processes within this proposal: firstly by using design agents to self-organise urban matter and secondly encoding intelligence into urban elements and topologies.” “Agents within this system are not generic, instead there is an ecology of agent systems which interact, each set of agents programmed with their own desires and information.” There are two key points here that they use to relate a swarm model to urban phenomena. Second, there is a hierarchy of agents, each performing their own task. I think both of these points are crucial when starting to think about how swarm models can be applied to think of the organization of a city. -dn Like this: Like Loading...

A search engine for social networks based on the behavior of ants Research at Carlos III University in Madrid is developing an algorithm, based on ants' behavior when they are searching for food, which accelerates the search for relationships among elements that are present in social networks. One of the main technical questions in the field of social networks, whose use is becoming more and more generalized, consists in locating the chain of reference that leads from one person to another, from one node to another. The greatest challenges that are presented in this area is the enormous size of these networks and the fact that the response must be rapid, given that the final user expects results in the shortest time possible. In order to find a solution to this problem, these researchers from UC3M have developed an algorithm SoSACO, which accelerates the search for routes between two nodes that belong to a graph that represents a social network. Multiple applications

Trees cocooned by spiders could reduce malaria risk Seil Collins, reporter (Image: Russell Watkins/DFID) Covered in spiders' webs, these cocooned trees in Sindh, Pakistan, are an unexpected result of floods that hit the region in 2010. To escape from the rising waters, millions of spiders crawled up into trees. The scale of the flooding and the slow rate at which the waters receded, have left many trees completely enveloped in spiders' webs. Although slowly killing the trees, the phenomenon is seemingly helping the local population.

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. This strange reality, a time when the structures around us act less like traditional buildings and more like living, thinking organisms, isn't too far away. In fact, if all goes according to William Bondin's plan, this could be the case as soon as 2015. The Malta-based architect's current project is a look into how we can create playful, responsive architecture that does more than just sit in a fixed position. Bondin took those principles and applied them to his mobile architectural form, which crawls along very very slowly, flipping one tetrahedral nucleus over the next to change positions. So what do these reactive architectural structures actually react to?

Oh no more Processing! « evilpaul.org I was discussing Flight404‘s flow field simulation experiments with Roxlu yesterday and I realised that I’d never actually tried to recreate the effect myself. I’ve played around with stuff that was inspired by these works, but never really been that satisfied with the results. So I thought I should just borrow the idea wholesale and see what came out. (click on the picture to run the demo) The effect shows 30,000 particles. There are several different scenes in the demo. If you’re interested in how it works then you can grab the Processing source code from the demo page.

# INTERVIEWS /// Roland Snooks (Swarm 3/3) Third and last interview for this SWARM thematic. This one is of Roland Snooks from Kokkugia. Roland speaks about his research about multi-agent strategies in his studio and in the schools he is teaching (Columbia, Pratt, Sci-Arc, UPenn, RMIT…) You are using swarm/network intelligence as a process of creation. Designing through complex systems, in particular through multi-agent design methodologies, does not represent a loss of control in the design process, however the nature of design and authorship changes. Swarm intelligence is based on a neighborhood negotiation; how do you make that happen as a designer ? Swarm Intelligence involves the encoding of design intent at the local level through seeding agents with behaviors. What are the political impacts of such a process ? Agent based systems do not have any a priori political bias, however the distributed nature of the process offers the opportunity to use this design methodology in a more inclusive or democratic way. Like this:

Swarms of fish off coast of Acapulco caused by tsunami? By Daily Mail Reporter Updated: 14:26 GMT, 14 March 2011 The shores of Acapulco's beaches were this weekend teeming with masses of fish packed so tightly they looked like an oil slick from above. Thousands of sardines, anchovies, stripped bass and mackerel surged along the coast of the Mexican resort in an event believed to be linked to the devastating Japanese tsunami. Delighted fishermen rushed out in wooden motor boats, abandoning their rods and nets and simply scooping the fish up with buckets. A man photographs a shoal of sardines off the shore of Acapulco Fishermen flocked to the water to take advantage of the surge Some experts believe the phenomenon is directly related to the Japanese tsunami 'There were about 20 or 30 fishermen and there were people who came with their kids to take advantage of it,' Carlos Morales said. The fishermen attributed the strange phenomenon to the unusual currents unleashed by tsunami that followed the earthquake in Japan. Experts couldn't be sure.

Proto-Architecture Project by Shih-Yuan Wang done with Processing The use of digital tools for architectural production is no longer a question and the impact of the digital on form-finding in architecture has been conspicuous.

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