Complexity & Self...
Follow
2.8K views | +11 today
 
Rescooped by Complexity Institute from CxConferences
onto Complexity & Self-Organizing Systems
Scoop.it!

Ants 2014: Ninth International Conference on Swarm Intelligence

Ants 2014: Ninth International Conference on Swarm Intelligence | Complexity & Self-Organizing Systems | Scoop.it

September10-12,  2014.  Brussels, Belgium

http://iridia.ulb.ac.be/ants2014

 

Swarm intelligence is a relatively new discipline that deals with the study of self-organizing processes both in nature and in artificial systems. Researchers in ethology and animal behavior have proposed many models to explain interesting aspects of social insect behavior such as self-organization and shape-formation. Recently, algorithms inspired by these models have been proposed to solve difficult computational problems.
An example of a particularly successful research direction in swarm intelligence is ant colony optimization, the main focus of which is on discrete optimization problems. Ant colony optimization has been applied successfully to a large number of difficult discrete optimization problems including the traveling salesman problem, the quadratic assignment problem, scheduling, vehicle routing, etc., as well as to routing in telecommunication networks. Another interesting approach is that of particle swarm optimization, that focuses on continuous optimization problems. Here too, a number of successful applications can be found in the recent literature. Swarm robotics is another relevant field. Here, the focus is on applying swarm intelligence techniques to the control of large groups of cooperating autonomous robots.

ANTS 2014 will give researchers in swarm intelligence the opportunity to meet, to present their latest research, and to discuss current developments and applications.


Via Complexity Digest
more...
june holley's curator insight, November 20, 2013 11:07 AM

This would be so interesting!

Complexity & Self-Organizing Systems
Exploring the self-organizing dynamics of interactive entities
Your new post is loading...
Your new post is loading...
Rescooped by Complexity Institute from Ecosistema XXI
Scoop.it!

Le stategie dormienti - L'Impresa

Le stategie dormienti - L'Impresa | Complexity & Self-Organizing Systems | Scoop.it

Il paradosso, sempre più evidente in questi ultimi anni, è che le strutture più robuste nei confronti dei pericoli prevedibili si dimostrano essere le più fragili di fronte a situazioni impreviste. John Doyle, scienziato del California Institute of Technology, ha coniato il termine “robust-yet-fragile” (“robusto-ma-fragile”) o “RYF” per descrivere l’architettura di sistemi di questo tipo, in grado di resistere di fronte ai pericoli previsti ma estremamente fragili rispetto a minacce impreviste. I sistemi RYF sono quelli più diffusi nel nostro ambiente economico e sociale: sono efficienti ed affidabili, spesso dando l’illusione di poter durare per sempre.”


Via Gino Tocchetti
more...
No comment yet.
Rescooped by Complexity Institute from Papers
Scoop.it!

Twitter-based analysis of the dynamics of collective attention to political parties

Large-scale data from social media have a significant potential to describe complex phenomena in real world and to anticipate collective behaviors such as information spreading and social trends. One specific case of study is represented by the collective attention to the action of political parties. Not surprisingly, researchers and stakeholders tried to correlate parties' presence on social media with their performances in elections. Despite the many efforts, results are still inconclusive since this kind of data is often very noisy and significant signals could be covered by (largely unknown) statistical fluctuations.
In this paper we consider the number of tweets (tweet volume) of a party as a proxy of collective attention to the party, we identify the dynamics of the volume, and show that this quantity has some information on the elections outcome. We find that the distribution of the tweet volume for each party follows a log-normal distribution with a positive autocorrelation over short terms. Furthermore, by measuring the ratio of two consecutive daily tweet volumes, we find that the evolution of the daily volume of a party can be described by means of a geometric Brownian motion. Finally, we determine the optimal period of averaging tweet volume for reducing fluctuations and extracting short-term tendencies. We conclude that the tweet volume is a good indicator of parties' success in the elections when considered over an optimal time window. Our study identifies the statistical nature of collective attention to political issues and sheds light on how to model the dynamics of collective attention in social media.

 

Twitter-based analysis of the dynamics of collective attention to political parties
Young-Ho Eom, Michelangelo Puliga, Jasmina Smailović, Igor Mozetič, Guido Caldarelli

http://arxiv.org/abs/1504.06861


Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Papers
Scoop.it!

Unveiling patterns of international communities in a global city using mobile phone data

We analyse a large mobile phone activity dataset provided by Telecom Italia for the Telecom Big Data Challenge contest. The dataset reports the international country codes of every call/SMS made and received by mobile phone users in Milan, Italy, between November and December 2013, with a spatial resolution of about 200 meters. We first show that the observed spatial distribution of international codes well matches the distribution of international communities reported by official statistics, confirming the value of mobile phone data for demographic research. Next, we define an entropy function to measure the heterogeneity of the international phone activity in space and time. By comparing the entropy function to empirical data, we show that it can be used to identify the city’s hotspots, defined by the presence of points of interests. Eventually, we use the entropy function to characterize the spatial distribution of international communities in the city. Adopting a topological data analysis approach, we find that international mobile phone users exhibit some robust clustering patterns that correlate with basic socio-economic variables. Our results suggest that mobile phone records can be used in conjunction with topological data analysis tools to study the geography of migrant communities in a global city.

 

Unveiling patterns of international communities in a global city using mobile phone data
Paolo Bajardi, Matteo Delfino, André Panisson, Giovanni Petri and Michele Tizzoni

EPJ Data Science 2015, 4:3  http://dx.doi.org/10.1140/epjds/s13688-015-0041-5 ;


Via Complexity Digest
more...
No comment yet.
Scooped by Complexity Institute
Scoop.it!

BionicANTs, una squadra di formiche bioniche da mettere al lavoro - Wired

BionicANTs, una squadra di formiche bioniche da mettere al lavoro - Wired | Complexity & Self-Organizing Systems | Scoop.it
Piccoli robot ispirati alla natura e perfettamente sincronizzati potrebbero essere il futuro dei nostri impianti industriali
more...
No comment yet.
Rescooped by Complexity Institute from Life Science Paradigms and Foundations
Scoop.it!

PNAS : Dynamical evidence for causality between galactic cosmic rays and interannual variation

"Dynamical evidence for causality between galactic cosmic rays and interannual variation in global temperature. Anastasios A. Tsonis et al (2015),  http://dx.doi.org/10.1073/pnas.1420291112"


Via Colbert Sesanker
more...
Colbert Sesanker's curator insight, March 24, 6:54 PM

Goes into methodology details on cosmic ray paper below

Rescooped by Complexity Institute from Complexity in Education
Scoop.it!

Only ten midges needed to make a swarm

Only ten midges needed to make a swarm | Complexity & Self-Organizing Systems | Scoop.it
High-speed cameras reveal when insects become self-organizing.

Via Keith Hamon
more...
No comment yet.
Rescooped by Complexity Institute from Papers
Scoop.it!

Self-Organization, Emergence, and Constraint in Complex Natural Systems

Contemporary complexity theory has been instrumental in providing novel rigorous definitions for some classic philosophical concepts, including emergence. In an attempt to provide an account of emergence that is consistent with complexity and dynamical systems theory, several authors have turned to the notion of constraints on state transitions. Drawing on complexity theory directly, this paper builds on those accounts, further developing the constraint-based interpretation of emergence and arguing that such accounts recover many of the features of more traditional accounts. We show that the constraint-based account of emergence also leads naturally into a meaningful definition of self-organization, another concept that has received increasing attention recently. Along the way, we distinguish between order and organization, two concepts which are frequently conflated. Finally, we consider possibilities for future research in the philosophy of complex systems, as well as applications of the distinctions made in this paper.

 

Self-Organization, Emergence, and Constraint in Complex Natural Systems
Jonathan Lawhead

http://arxiv.org/abs/1502.01476


Via Complexity Digest
more...
Eli Levine's curator insight, February 14, 9:23 PM

We are naturally constrained by many natural laws in our universe.  Our governments are likewise constrained by physical laws of nature as well as the natural laws behind people, societies, economies, and ecosystems.  Where the constraints came from in nature, I don't know.  But what I do see, is that like the natural laws of the universe, societies impose other constraints upon our actions, behaviors, perceptions, chosen courses of action, abilities to frame issues and topics, abilities to define conditions within our social systems.  Governments can likewise make and define constraints for behaviors or willingness and ability to behave on the part of the citizenry, either by offering incentives to get people to behave in a particular way or to penalize and possibly limit some actions and chosen patterns of behavior. 

 

It should be noted that the laws and chosen constraints and incentives of the government on this level of existence can only be as good as the people who sit within them and make choices.  They are also limited by the physical laws of the universe and the natural laws, conditions, desires, and motives of the general public that composes the whole of society in aggregate and as that which is greater than the aggregate; the combined whole of human thought, behavior, and sentiment. 

 

These human-made constraints (created by governments and social authority figures) are also imperfect in their ability to contain and constrain the society, since the society and its members have autonomy from the government.  Humans and human societies are more constrained by the natural laws and the limitations of knowledge and perception that are present in our brains and neural systems.  Therefore, it can be said that human-made social constraints are less important than the natural ones that exist amongst ourselves and within the universe that we are apart of.

 

Therefore, I think that in order to continue to advance humanity and contribute to our potential to survive, endure, and thrive, we should be constantly and safely pushing at the constraints of what we already know and can do as individuals and as a species.  Our government(s) should focus on studying the universal natural laws of societies, economies, human behavior, and environmental functions in addition to the particular laws of their own societies, making laws and legal systems that work better and better with the natural laws of their own societies and amongst all human societies.  We should capitalize on our differences of perspective and opinion, sifting out those that don't fall into line with discovered reality while using that which is accurate to complete the puzzles of our universe in order to produce something greater than what we've presently got and to continue to advance ourselves safely and in accordance with what is actually helpful, healthful, and ethical for all sentient life in the universe.  Study, research, observation, and exploration are what will make tomorrow better than today, even as the natural laws and some conditions remain the same.  Health, well-being, quality of life, sustainability, and the ability to thrive for all are what we need to prioritize and produce as a society over financial profits and short term economic gains for a few.  Some constraints can be pushed, some can't, and some really shouldn't from the perspective of health, well-being, quality of life, and the ability to thrive for all.  Welcome to nature.

Scooped by Complexity Institute
Scoop.it!

Scenari complessi - Come si organizzano le cellule terroristiche?

Scenari complessi - Come si organizzano le cellule terroristiche? | Complexity & Self-Organizing Systems | Scoop.it
Scenari complessi - Come si organizzano le cellule terroristiche? La scorsa settimana, dopo i tragici eventi di Parigi, Marinella De Simone, Claudio Bergamini e Valerio Eletti - docenti della Compl...
more...
No comment yet.
Rescooped by Complexity Institute from Science News
Scoop.it!

Applause is Contagious Like a Disease - D-brief

Applause is Contagious Like a Disease - D-brief | Complexity & Self-Organizing Systems | Scoop.it
Applause spreads linearly, like a disease. The amount of time an individual feels like clapping is a factor, but not nearly as much as peer pressure.

Via Sakis Koukouvis
more...
Cat Perrin's curator insight, July 12, 2013 6:11 AM

La foule.. et son effet de masse...

robyns tut's curator insight, October 14, 2013 1:04 PM

This is interesting, how peer pressure can factor into little things. Would be good to see what makes the brain do these things and what chemical reactions occure.

-Tanah

Rescooped by Complexity Institute from Papers
Scoop.it!

War: Origins and Effects

The International System is a self-organized system and shows emergent behavior. During the timeframe (1495 - 1945), a finite-time singularity and four accompanying accelerating log-periodic cycles shaped the dynamics of the International System. The accelerated growth of the connectivity of the regulatory network of the International System, in combination with its anarchistic structure, produce and shape the war dynamics of the system. Accelerated growth of the connectivity of the International system is fed by population growth and the need for social systems to fulfill basic requirements. The finite-time singularity and accompanying log-periodic oscillations were instrumental in the periodic reorganization of the regulatory network of the International System, and contributed to a long-term process of social expansion and integration in Europa. The singularity dynamic produced a series of organizational innovations. At the critical time of the singularity (1939) the connectivity of the system reached a critical threshold, resulting in a critical transition. This critical transition caused a fundamental reorganization of the International System: Europe transformed from an anarchistic system to cooperative security community. This critical transition also marks the actual globalization of the International System. During the life span of cycles, the war dynamics show chaotic characteristics. Various early-warning signals can be identified, and can probably be used in the current International System. These findings have implications for the social sciences and historical research.

 

War: Origins and Effects
Ingo Piepers

http://arxiv.org/abs/1409.6163


Via Complexity Digest
more...
Eli Levine's curator insight, September 26, 2014 11:31 AM

Thus we delve closer into the hidden language of our social world.

 

Way cool science!

Rescooped by Complexity Institute from Talks
Scoop.it!

A Magna Carta for the web

A Magna Carta for the web | Complexity & Self-Organizing Systems | Scoop.it

Sir Tim Berners-Lee invented the World Wide Web 25 years ago. So it’s worth a listen when he warns us: There’s a battle ahead. Eroding net neutrality, filter bubbles and centralizing corporate control all threaten the web’s wide-open spaces. It’s up to users to fight for the right to access and openness. The question is, What kind of Internet do we want?

 

http://on.ted.com/h0Pgm


Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Complex World
Scoop.it!

Sand Pile Model of the Mind Grows in Popularity

Sand Pile Model of the Mind Grows in Popularity | Complexity & Self-Organizing Systems | Scoop.it
Support is growing for a decades-old physics idea suggesting that localized episodes of disordered brain activity help keep the overall system in healthy balance

Via Claudia Mihai
more...
No comment yet.
Scooped by Complexity Institute
Scoop.it!

HISTORY: First World War had complex beginnings

HISTORY: First World War had complex beginnings | Complexity & Self-Organizing Systems | Scoop.it
“Vienna, 28 July 1914 — The Royal Serbian Government not having answered in a satisfactory manner the note of July 23, 1914, presented by the Austro-Hungarian Minister at Belgrade, the Imperial and Royal Government are themselves compelled to see to the safeguarding of their rights and interests, and, with this object, to have recourse to force of
more...
No comment yet.
Rescooped by Complexity Institute from Papers
Scoop.it!

Ants Swarm Like Brains Think

Ants Swarm Like Brains Think | Complexity & Self-Organizing Systems | Scoop.it
“As I watched films of these ant colonies, it looked like what was happening at the synapse of neurons. Both of these systems accumulate evidence about their inputs—returning ants or incoming voltage pulses—to make their decisions about whether to generate an output—an outgoing forager or a packet of neurotransmitter,” Goldman said. On his next trip to Stanford, he extended his stay. An unusual research collaboration had begun to coalesce: Ants would be used to study the brain, and the brain, to study ants.

 

http://nautil.us/issue/23/dominoes/ants-swarm-like-brains-think-rp


Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Papers
Scoop.it!

The Fractured Nature of British Politics

The outcome of the British General Election to be held in just over one week's time is widely regarded as the most difficult in living memory to predict. Current polls suggest that the two main parties are neck and neck but that there will be a landslide to the Scottish Nationalist Party with that party taking most of the constituencies in Scotland. The Liberal Democrats are forecast to loose more than half their seats and the fringe parties of whom the UK Independence Party is the biggest are simply unknown quantities. Much of this volatility relates to long-standing and deeply rooted cultural and nationalist attitudes that relate to geographical fault lines that have been present for 500 years or more but occasionally reveal themselves, at times like this. In this paper our purpose is to raise the notion that these fault lines are critical to thinking about regionalism, nationalism and the hierarchy of cities in Great Britain (excluding Northern Ireland). We use a percolation method (Arcaute et al. 2015) to reveal them that treats Britain as a giant cluster of related places each defined from the intersections of the road network at a very fine spatial scale. We break this giant cluster into a detailed hierarchy of sub-clusters by successively reducing a distance threshold which first breaks off some of the Scottish Islands and then reveals the very distinct nations and regions that make up Britain, all the way down to the definition of the largest cities that appear when the threshold reaches 300m. We use these percolation clusters to apportion the 2010 voting pattern to a new hierarchy of constituencies based on these clusters, and this gives us a picture of how Britain might vote on purely geographical lines. We then examine this voting pattern which provides us with some sense of how important the new configuration of political parties might be to the election next week.

 

The Fractured Nature of British Politics
Carlos Molinero, Elsa Arcaute, Duncan Smith, Michael Batty

http://arxiv.org/abs/1505.00217


Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Papers
Scoop.it!

Hierarchical organisation of Britain through percolation theory

Urban systems present hierarchical structures at many different scales. These are observed as administrative regional delimitations, which are the outcome of geographical, political and historical constraints. Using percolation theory on the street intersections and on the road network of Britain, we obtain hierarchies at different scales that are independent of administrative arrangements. Natural boundaries, such as islands and National Parks, consistently emerge at the largest/regional scales. Cities are devised through recursive percolations on each of the emerging clusters, but the system does not undergo a phase transition at the distance threshold at which cities can be defined. This specific distance is obtained by computing the fractal dimension of the clusters extracted at each distance threshold. We observe that the fractal dimension presents a maximum over all the different distance thresholds. The clusters obtained at this maximum are in very good correspondence to the morphological definition of cities given by satellite images, and by other methods previously developed by the authors (Arcaute et al. 2015).

 

Hierarchical organisation of Britain through percolation theory
Elsa Arcaute, Carlos Molinero, Erez Hatna, Roberto Murcio, Camilo Vargas-Ruiz, Paolo Masucci, Jiaqiu Wang, Michael Batty

http://arxiv.org/abs/1504.08318


Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Geography Education
Scoop.it!

Scale taught in Comics

Scale taught in Comics | Complexity & Self-Organizing Systems | Scoop.it

Such as a simple, powerful comic strip to teach the importance of scale.   If you prefer an image with a 'paper' look to it, try this image of the April 19, 2015 post of Mutts. 

 

Tags: scale, K12, location, fun.


Via Seth Dixon
more...
Coco Angus's curator insight, April 28, 5:56 PM

April 19 2015 

Shane C Cook's curator insight, May 27, 5:40 AM

It is kinda cool to see this comic explain scale. Short and sweet but to the point. This could easily be taught to a kid at the age of 4 or 5.

HazelAnne Prescott's curator insight, July 29, 9:10 AM

Finally get to teach AP.  This will go in my first lesson.

 

Rescooped by Complexity Institute from Complexity in Education
Scoop.it!

Complicated or complex - knowing the difference is important

Complicated or complex - knowing the difference is important | Complexity & Self-Organizing Systems | Scoop.it
Understanding the difference between complex and complicated systems is becoming important for many aspects of management and policy. With complicated problems or issues one can define the problem ...

Via Keith Hamon
more...
Keith Hamon's curator insight, June 3, 2014 7:28 AM

Discusses management & policy implications for dealing with complex issues rather than complicated issues.

Rescooped by Complexity Institute from Complexity in Education
Scoop.it!

Economic complexity: A different way to look at the economy — Foundations & Frontiers — Medium

Economic complexity: A different way to look at the economy - Foundations & Frontiers - Medium
By W. Brian Arthur; External Professor, Santa Fe Institute; Visiting Researcher, Palo Alto Research Center

Via Keith Hamon
more...
Keith Hamon's curator insight, February 23, 9:28 PM

We need a different way to look at education, a complex way.

Rescooped by Complexity Institute from Papers
Scoop.it!

What Isn't Complexity?

The question What is Complexity? has occupied a great deal of time and paper over the last 20 or so years. There are a myriad different perspectives and definitions but still no consensus. In this paper I take a phenomenological approach, identifying several factors that discriminate well between systems that would be consensually agreed to be simple versus others that would be consensually agreed to be complex - biological systems and human languages. I argue that a crucial component is that of structural building block hierarchies that, in the case of complex systems, correspond also to a functional hierarchy. I argue that complexity is an emergent property of this structural/functional hierarchy, induced by a property - fitness in the case of biological systems and meaning in the case of languages - that links the elements of this hierarchy across multiple scales. Additionally, I argue that non-complex systems "are" while complex systems "do" so that the latter, in distinction to physical systems, must be described not only in a space of states but also in a space of update rules (strategies) which we do not know how to specify. Further, the existence of structural/functional building block hierarchies allows for the functional specialisation of structural modules as amply observed in nature. Finally, we argue that there is at least one measuring apparatus capable of measuring complexity as characterised in the paper - the human brain itself.

 

What Isn't Complexity?
Christopher R. Stephens

http://arxiv.org/abs/1502.03199


Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Complex systems and projects
Scoop.it!

Complexity Theory: A short film (5')

A short film about complexity theory and the shift in paradigm from the Newtonian clockwork universe to complex systems. Enjoy : ) From http://www.fotonlabs.com

Via Philippe Vallat
more...
Philippe Vallat's curator insight, January 14, 10:47 AM

Nicely done

Leadership Learning Community's curator insight, January 23, 11:31 AM

Visualizes complex systems and networks in a powerful way, brings clarity and a much deeper understanding to very abstract concepts

Jamie Billingham's curator insight, February 25, 12:24 AM

Learning and the education system(s) are incredibly complex. 

 

Rescooped by Complexity Institute from Topology
Scoop.it!

Topology: The Secret Ingredient In The Latest Theory of Everything

Topology: The Secret Ingredient In The Latest Theory of Everything | Complexity & Self-Organizing Systems | Scoop.it

Combine topology with symmetry and add a sprinkling of quantum mechanics. The result? A powerful new theory of everything


Via Sakis Koukouvis, David Rodrigues
more...
Rescooped by Complexity Institute from Talks
Scoop.it!

The World after Big Data: Building the Self-Regulating Society

The World after Big Data: Building the Self-Regulating Society. Dirk Helbing, ETH Zurich.

Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Talks
Scoop.it!

▶ Self-organizing Intelligent Network of UAVs - YouTube

This video explains our research on autonomous unmanned aerial vehicles (UAVs). The research team at the Alpen-Adria University and Lakeside Labs developing a multi-UAV system by four key components: - the multiple UAV platforms,

 

http://youtu.be/QX2UPkd6yIc


Via Complexity Digest
more...
No comment yet.
Rescooped by Complexity Institute from Complex World
Scoop.it!

How bird flocks are like liquid helium

How bird flocks are like liquid helium | Complexity & Self-Organizing Systems | Scoop.it

Mathematical model shows how hundreds of starlings coordinate their movements in flight.

A flock of starlings flies as one, a spectacular display in which each bird flits about as if in a well-choreographed dance. Everyone seems to know exactly when and where to turn. Now, for the first time, researchers have measured how that knowledge moves through the flock—a behavior that mirrors certain quantum phenomena of liquid helium.


Via Claudia Mihai
more...
No comment yet.