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Terms
A host of terms are used to discuss complexity: many of which overlap and differ only in subtle ways.
The words used to describe the behaviors of Complex systems are often technical or ambiguous. Further, depending upon the research field, different terms may be used to refer to the same phenomena. This site endeavors to disambiguate terminology associated with CAS, as well as highlight parallel terms used to refer to the same concept across discourses.
Dive into the terminology!
This term is used by relational/assemblage philosophers to speak about the 'space of possibilities'.
Agents within a Complex system can help one another achieve more 'fit' behaviors by providing signals of past success: this 'marking' of past work is known as 'Stigmergy'.
A concept from Deleuzian philosophy - when distinct entities settle into synergies and act as a unit.
CAS Systems develop order or pattern ‘for free’: this means that order arises as a result of independent agent behaviors, without need for other inputs.
A notion that describes the ability of an intervention to quickly test whether or not it is 'fit', without expending unnecessary energy
The rhizome is a concept coined by french philosophers Deleuze and Guattari to describe a network of relations that resemble the structure of roots
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Positive Feedback serves to amplify particular behaviors, such that a small change in initial conditions can engender a large change in overall system behavior over the course of time.
Phase space is an abstract concept that refers to all possible behaviors available to an agent within a complex system.
Once a Complex System has 'settled in' to a fit regime (or basin of attraction), it is very difficult for it to be 'shaken' from this state. A system perturbation acts as a kind of 'shock' that, if large enough, is able to move a system out of its attractor state and potentially into a new regime.
A notion in Landscape Urbanism that relates to the notion of an environment's potentiality to be activated in different ways;
The violation of the second order of dynamics - whereby systems develop and maintain order
Negative Feedback is the tendency for systems to employ mechanisms whereby any fluctuations from a particular behavior or trajectory are 'dampened'; that is to say, divergence from a norm is hindered.
To speak of a CAS being modular is another way to refer to its {{building-blocks}} characteristic.
Agents in a Complex System are guided by neighboring agents - nonetheless leading to global order.
While Fractals are visually striking on their own, such topological regularities in complex systems are significant not only due to their inherent beauty , but because of the dynamics at work which generate such patterns.
Certain ideas in Urbanism that highlights flows and relations in space, rather than particular places.
A fitness landscape is a concept that employs the metaphor of a physical landscape to depict more or less 'fit' regions of phase space.
Agents in the CAS constantly adjust their possible behaviors to inputs - maintaining fitness over time.
Cybernetics is the study of systems that self-regulate: Adjusting their own performance to keep aligned with a pre-determined outcome, using processes of negative-feedback to help self-correct.
The idea that many possible states or historical trajectories could have equally unfolded
Complex systems do not follow linear, predictable chains of cause and effect. Instead, system trajectories can diverge into wildly different regimes. The moment when a complex system move from one trajectory to another is known as a system bifurcation.
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The notion of 'Affordances' was developed by James Gibson. It has many strong similarities to the concept of 'phase space'.
Photo Credit and Caption: Image by Romain Vignes from Unsplash
Cite this page:
Wohl, S. (2022, 13 June). Terms. Retrieved from https://kapalicarsi.wittmeyer.io/taxonomy/terms
Terms was updated June 13th, 2022.
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Related (this page): Variables (58), Unfolding Interactions (110), The Virtual (118), Swarm Behavior (60), Stigmergy (280), Stabilized Assemblages (113), Sensitive to Initial Conditions (77), Self Similarity (98), Schemata (69), Safe to Fail (258), Rhizomes (115), Requisite Variety (90), Redundancy (211), Preferential Attachment (76), Positive Feedback (120), Phase Space (83), Perturbation (142), Open Scaffolds (104), Negentropy (74), Negative Feedback (121), Multiple Equilibria (79), Modularity (62), Manifold (82), Local Interactions (89), Homeostasis (279), History Matters (116), Fractals (216), Fluidity/Mobility (111), Fitness Peaks (67), Fitness Landscape (130), Evolutionary (94), Enslaved States (70), Cybernetics (53), Contingency (117), Causal Loop Diagrams (311), Capturing Flows (102), Building Blocks (63), Bifurcations (81), Arrow of Time (80), Affordances (105), Tutorials (53),
Section:
Non-Linearity Related (same section): Related (all): Urban Modeling (11, fields), Resilient Urbanism (14, fields), Relational Geography (19, fields), Landscape Urbanism (15, fields), Evolutionary Geography (12, fields), Communicative Planning (18, fields), Assemblage Geography (20, fields), Tipping Points (218, concepts), Path Dependency (93, concepts), Far From Equilibrium (212, concepts),
Nested Orders Related (same section): Related (all): Urban Modeling (11, fields), Urban Informalities (16, fields), Resilient Urbanism (14, fields), Self-Organized Criticality (64, concepts), Scale-Free (217, concepts), Power Laws (66, concepts),
Emergence Related (same section): Related (all): Urban Modeling (11, fields), Urban Informalities (16, fields), Urban Datascapes (28, fields), Incremental Urbanism (13, fields), Evolutionary Geography (12, fields), Communicative Planning (18, fields), Assemblage Geography (20, fields), Self-Organization (214, concepts), Fitness (59, concepts), Attractor States (72, concepts),
Driving Flows Related (same section): Related (all): Urban Datascapes (28, fields), Tactical Urbanism (17, fields), Relational Geography (19, fields), Parametric Urbanism (10, fields), Landscape Urbanism (15, fields), Evolutionary Geography (12, fields), Communicative Planning (18, fields), Assemblage Geography (20, fields), Open / Dissipative (84, concepts), Networks (75, concepts), Information (73, concepts),
Bottom-up Agents Related (same section): Related (all): Urban Modeling (11, fields), Urban Informalities (16, fields), Resilient Urbanism (14, fields), Parametric Urbanism (10, fields), Incremental Urbanism (13, fields), Evolutionary Geography (12, fields), Communicative Planning (18, fields), Rules (213, concepts), Iterations (56, concepts),
Adaptive Capacity Related (same section): Related (all): Urban Modeling (11, fields), Urban Informalities (16, fields), Tactical Urbanism (17, fields), Parametric Urbanism (10, fields), Landscape Urbanism (15, fields), Incremental Urbanism (13, fields), Evolutionary Geography (12, fields), Feedback (88, concepts), Degrees of Freedom (78, concepts),