Linda Booth Sweeney Systems change. That’s a phrase I’m hearing more and more. And I wonder, where our next generation of leaders learn to drive this kind of change, the systems kind, where nothing stands alone and actions leave tracks? Where will they learn to connect the dots, discovering as they do force multipliers among seemingly disconnected issues like education reform, climate change, electoral reform, racism, violence both local and global, and inequities of every kind, among other pressing issues of our day? The dynamics of correlated novelties : Scientific Reports Human activities data We begin by analyzing four data sets, each consisting of a sequence of elements ordered in time: (1) Texts: Here the elements are words. A novelty in this setting is defined to occur whenever a word appears for the first time in the text; (2) Online music catalogues: The elements are songs. A novelty occurs whenever a user listens either to a song or to an artist that she has not listened to before; (3) Wikipedia: The elements are individual wikipages. A novelty corresponds to the first edit action of a given wikipage by a given contributor (the edit can be the first ever, or other contributors may have edited the page previously but that particular contributor has not); (4) Social annotation systems: In the so-called tagging sites, the elements are tags (descriptive words assigned to photographs, files, bookmarks, or other pieces of information).
Systems Analysis Interesting Web Sites List Systems Analysis Web Sites General Systems Analysis Links Systems and Systems Thinking Definition of a System Systems - A Journey Along the Way Systems A Journey Along theWay Welcome to a journey in the realm of systems. The journey is still unfolding as this web site continues to evolve over time.
Small World Theory Explanations > Theories > Small World Theory Description | Research | Example | So What? | See also | References Description We all have friends and they have further friends who have friends again and so on. Beyond the Bell Curve, a New Universal Law Imagine an archipelago where each island hosts a single tortoise species and all the islands are connected — say by rafts of flotsam. As the tortoises interact by dipping into one another’s food supplies, their populations fluctuate. In 1972, the biologist Robert May devised a simple mathematical model that worked much like the archipelago. He wanted to figure out whether a complex ecosystem can ever be stable or whether interactions between species inevitably lead some to wipe out others. By indexing chance interactions between species as random numbers in a matrix, he calculated the critical “interaction strength” — a measure of the number of flotsam rafts, for example — needed to destabilize the ecosystem. Below this critical point, all species maintained steady populations.
Systems Theory Systems theory is the interdisciplinary study of systems in general, with the goal of elucidating principles that can be applied to all types of systems at all nesting levels in all fields of research. The term does not yet have a well-established, precise meaning, but systems theory can reasonably be considered a specialization of systems thinking; alternatively as a goal output of systems science and systems engineering, with an emphasis on generality useful across a broad range of systems (versus the particular models of individual fields). A central topic of systems theory is self-regulating systems, i.e. systems self-correcting through feedback. Self-regulating systems are found in nature, including the physiological systems of our body, in local and global ecosystems, and in climate—and in human learning processes (from the individual on up through international organizations like the UN). Overview
Glossary of systems theory A glossary of terms as relating to systems theory. A B C Cascading failure: failure in a system of interconnected parts, where the service provided depends on the operation of a preceding part, and the failure of a preceding part can trigger the failure of successive parts.Closed system: a system which can exchange energy (as heat or work), but not matter, with its surroundings.Complexity: A systemic characteristic that stands for a large number of densely connected parts and multiple levels of embeddedness and entanglement.
Groningen Center for Social Complexity Studies How interactions between individual people or animals give rise to group phenomena such as the diffusion of new behaviours, social networks, societial polarisation, crowd behaviours and spatial arrangements is the key question around which researchers from the GCSCS gather. Using empirical and simulation methodologies, we try to identify the processes that explain such phenomena, and if possible, identify managerial strategies. The GCSCS serves as a platform connecting researchers at or affiliated with the University of Groningen working in the field of social complexity. The aim of the GCSCS is to provide high quality research and education, interacting actively with business, government and the public, and in particular to address the goal of stimulating cross-border research and education.
Computer-Based Global Models AMALRIK, A. (1970). Will the Soviet Union Survive Until 1984?. New York: Harper & Row. BARNEY, G. O. NetLogo Home Page NetLogo is a multi-agent programmable modeling environment. It is used by tens of thousands of students, teachers and researchers worldwide. It also powers HubNet participatory simulations. It is authored by Uri Wilensky and developed at the CCL. You can download it free of charge. What can you do with NetLogo? A Survey of Agent Platforms ACRONYMICS INC. (2004). AGENTBUILDER: An Integrated Toolkit for Constructing Intelligent. Software Agents.