Lecture 4

Brief outline of the day:

• complex processes create wide range of patterns
  • can be interaction of several simple components or a simple rule set
• focus today on growing patterns
  • language and approach necessary to describe the "cause" of these

Lecture Notes:

A. pattern to models

traditional cause and effect:
pattern -> model -> prediction -> control

complex:
pattern -> likely processes -/-> predict

B. Healthy patterns

HBL

sustainable patterns

links between health, beauty and life

 

Christopher Alexanders's "A pattern language"

http://downlode.org/Etext/Patterns/

15 properties

15 properties

C. Grow some patterns

Logistic growth

logistic-model

stella model

deterministic chaos from simple beginnings

Landscape processes such as fire

http://dimacs.rutgers.edu/~cbiehl/fire.html

fire simulator

CA sim

connectivity - NetLogo fire

patterns on the environment

 

ant tracks

dynamic, movement

ant searching

swarming

cars on freeway

D. Catalog

as a way to build a repertoire of living systems metaphors, with inciteful comments on:

• healthy aspects of the pattern
• how the pattern is formed (processes)
• how to interact with this pattern