awesome-complexity

Complex Systems Resources

A curated list of resources and concepts related to complex systems science and their applications in various fields.

An awesome list of complex systems science resources

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Awesome Complexity / Concepts
Attractor A trajectory in the state space of a system in which it tends to evolve towards
Autopoiesis The ability of a system to create and maintain itself
Chaos Theory of chaotic systems
Complexity The subject of complex systems science
Developmental Systems Theory Theoretical perspective on biological development, heredity, and evolution
Dissipative System A thermodynamically open system far from thermodynamic equilibrium
Distributed Control A control system without a central supervisor
Edge of Chaos The transition zone between order and disorder
Emergence The whole is greater than the sum of the parts
Fractal Self-similar structure
Hysteresis Dependence of the state of a system on its history
Holon System that is both a whole and a part
Network/Graph Network with non-trivial topological features
Phase Transition Transition between states of matter
Robustness Ability to tolerate perturbations
Self-Organization The process where form arises from local interactions between parts of an initially disordered system
Simulation Imitation of the operation of a real-world process or system

Awesome Complexity / Scientific Journals
Complexity Cross-disciplinary journal about complex adaptive systems (open access)

Awesome Complexity / Blogs/Journals
The Systems Thinker Articles with a systems perspective on various topics
Complexity Digest News feed on complexity
Fractal forums Forum and discussion community about fractals

Awesome Complexity / Societies/Communities
Complex Systems Society Scientific society for the study of complex systems
Complexity research Informal slack community for keeping up to date with new findings in complex systems research
Complexity Adventures Complexity community of practice (formerly known as Complexity Weekend)

Awesome Complexity / Organizations
New England Complex Systems Institute (NECSI) Independent academic research and educational institution
The Vermont Complex Systems Center Research and educational center (University of Vermont)
Santa Fe Institute Independent research and education center
Institut rhônalpin des systèmes complexes - IXXI Research center (ENS Lyon)
Waterloo Institute for Complexity & Innovation (WICI) Research center (University of Waterloo)
Institut des Systèmes Complexes - Paris Ile-de-France (ISC-PIF) An inter-institutional organization (CNRS unit) on complex systems research

Awesome Complexity / Models
Boids Emergent flocking behavior

Awesome Complexity / Models / Boids
Craig Reynolds' Boids page The creator's webpage with lots of links to multiple implementations

Awesome Complexity / Models
Cellular automata Discrete compuation model
Elementary cellular automaton One-dimensional cellular automata
Game of Life Two-dimensional cellular automaton with emergent life-like patterns

Awesome Complexity / Models / Game of Life
ConwayLife Community for game-of-life and similar simulations
golly State-of-the-art simulator
Lenia Continuous generalization of the game of life

Awesome Complexity / Models
Double pendulum Chaotic motion
Kuramoto model Synchronization
Barabási–Albert (BA) model Algorithm for generating random graphs with preferential attachment
Schelling's model Agent-based model for segregation
Ising model Simple model that can show phase transitions
Reaction-diffusion Self-organization and pattern formation model
Abelian sandpile model Model showing self-organized criticality

Awesome Complexity / Software / Freely to use or open source
NetLogo Multi-agent modeling environment based on the LOGO language. It comes with a very large library of toy models
Simulus ABM library in Python
Swarm A platform for agent-based models written in Objective-C, models are coded in Java or Objective-C
Repast Agent-based modeling and simulation platforms, models coded in C++ and Java
MASON Multiagent simulation library core in Java
HASH Graph and agent simulation platform
Hybrid Automata Library 37 3 months ago Java library for hybrid modeling combining agent-based and partial-differential equation components

Awesome Complexity / Software / Proprietary
Stella Modelling and interactive simulations
Ventity/Vensim Simulation software
Cosmo Tech platform Digital twins simulator software

Awesome Complexity / Other Resources
Complexity Explorer Educational site with news/blog
Map of Complex systems History An impressive overview of the evolution of complex systems thinking
Stanford Complexity Group YouTube channel with videos from the group's events
Awesome Network Analysis 3,566 17 days ago Resources for analysis of network data

Awesome Complexity / Books
Wiener, N. (2016). Cybernetics or control and communication in the animal and the machine. The book introduced the term cybernetics to describe a self-regulation mechanism
Scheffer, M. (2009). Critical transitions in nature and society. Princeton, N.J: Princeton University Press. A nicely written and accessible description of the critical transition and related concepts
Nicolis, G., Basios, V., & (Firm), W. S. (2015). Chaos, information processing and paradoxical games: the legacy of John S. Nicolis. Singapore; Hackensack, N.J.: World Scientific Pub. Co. An edited volume of studies honoring the legacy of John Nicolis contribution to complex systems
Newman, M. E. J. (2010). Networks: an introduction. Oxford; New York: Oxford University Press. A comprehensive introduction to network science
Mitchell, S. D. (2013). Unsimple truths: science, complexity, and policy. Chicago: Univ. of Chicago Press. The book introduces the perspective of integrative puralism as a way of understanding and studying the world
Maturana, H. R., & Varela, F. J. (2008). The tree of knowledge: the biological roots of human understanding. Boston: Shambhala. The book is an exposition of the non-representational vew of knowledge
Mandelbrot, B. (2006). The fractal geometry of nature. New York: W.H. Freeman and Company. Beautiful introduction to the world of fractals
Kauffman, S. (2014). At Home in the Universe The Search for the Laws of Self-Organization and Complexity. Cary: Oxford University Press, USA. The book introduces in an accessible way the influence of concepts such as self-organization and the edge of chaos
Gros, C. (2015). Complex and adaptive dynamical systems: a primer. Cham: Springer. Technical and accessible introduction to a number of important concepts in complex systems science
Downey, A. (2012). Think complexity. Needham, Massachusetts: Green Tea Press. A hands-on approach exploring complex systems models with Python
Boccara, N. (2014). Modeling complex systems. Springer-Verlag New York. An overview of important mathematical models of complex systems
Barrat, A., Barthelemy, M., & Vespignani, A. (2013). Dynamical processes on complex networks. Cambridge: Cambridge University Press Dynamic models on complex networks

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