Pusat Studi Cellular Automata

Author:

• Eric S. Rowland, October 31, 2009

Content:

We use the grid consisting of bits of 3^n to motivate the definition of 2-adic numbers. Specially, we exhibit diagonal stripes in the bits of 3^(2^n), which turn out to be the first in an infinite sequence of such structures. Our observations are explained by a 2-adic power series, providing some redularity among the disorder in the bits of powers of 3. Generally, the base-p representation of k^(p^n) has these features.

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• regularity vs. complexity-ca

Author:

• Damien Woods, Department of Computer Science, National University of Ireland, Maynooth, August 2005.

Content:

We investigate the computational complexity of an optically inspired model of computation. The model is called the continuous space machine and operates in discreste timesteps over a number of two-dimensional complex-valued images of constant size and arbitrary spatial resolution.

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• optical-model-ca

Author:

1. Guy Engelen

Content:

Transition rules representing:

• Locational preferences of spatial agents in competition for space.
• Appreciation of the proximity of other competing or befriended activities and static elements in the immediate neighbourhood.
• Willingness to develop or give-up activity in a particular location.
• Push and pull forces,agglomeration benefits, inertia, etc.
• The rule set consists of all the significant rules(2-3/function suffices).
• Interaction weights have relative value withinthe model only.

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complexity-ca

Author

• Yaneer Bar-Yam

Content

A dictionary definition of the word “complex” is: “consisting of interconnected or interwoven parts.”Why is the nature of a complex system inherently related to its parts? Simple systems are also formed out of parts. To explain the difference between simple and complex systems, the terms “interconnected” or “interwoven” are somehow essential…..

This is relevant to another definition of “complex”: “not easy to understand or analyze.” Examples of Complex Systems: Governments, Families, The human body—physiological perspective. A person—psychosocial perspective, The brain, The ecosystem of the world, Subworld ecosystems: desert, rain forest, ocean, Weather, A corporation, A computer. Examples of Simple Systems: An oscillator, A pendulum, A spinning wheel, An orbiting planet.

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• complexity-ca

Author

• Cosma Rohilla Shalizi, 2001

Content

All self-respecting nonlinear scientist know self-organization when they it: except when we disagree. For this reason, if no other, it is important to put some mathematical spine into our floppy intuitive notion of self-organization.

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• complexity-ca

Author

• M. I. Bell, 29 July 2009

Content

Disclaimers:

1. Most of these ideas are not original; I will not acknowledge my sources
2. I am responsible for any errors; feel free to point them out
3. Complexity can be complicated, even complex
4. I get nothing from the admission charge; no refunds will be given

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• implication-complexity-ca

Author

• David G. Green, Charles Sturt University

Content

The role of distributed information in environmental and resource management.

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• coping-ca

Author

• Nicholas Guttenberg, University of Illinois at Urbana-Champaign

Content

Simulating Evolutionary Dynamics

1. What can be learned from simulations?
2. Toy models for artificial life: von Neumann’s replicators, Conway’s Game of Life, and Predator-Prey, ecological models
3. Evolutionary dynamics: Tierra and AVIDA
4. The effects of ‘fitness’
5. Open-ended increase in complexity

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• complexity-fitness-ca

Author

• Tara Krause, Buena Park, USA, 2005

Content

Wolfram’s NKS Open Problems:

1. Long-term behavior of Rule 1599 properties & persistent structures
2. Artistic styles evoked by cellular automata
3. Complex behavior in human processes that are based on simple rules

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• abstract-painting-ca

Authors

1. Michael Andrew,
2. McADAMS,
3. Sinan KOCAMAN,
4. Fatih KARA,
5. Mehmet KARAKUYU,

Geography Department, Fatih University, Istanbul, Turkey

Content

Urban environment is collection of an incredible variety of interrelated elements both human and physical.

Built environment is the result of these activities within an urban area.

Incongruence between the actual urban ‘reality’ which is complex and non-linear and the application of linear rationalist planning methods (long range plans, Euclidean zoning etc.) to ‘solve’ urban problemsShould we be instructing future urban planners with theories , methodolgies, procedures and worldviews that have obviously become arcane?

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• urban-planning-ca