BCSSS

International Encyclopedia of Systems and Cybernetics

2nd Edition, as published by Charles François 2004 Presented by the Bertalanffy Center for the Study of Systems Science Vienna for public access.

About

The International Encyclopedia of Systems and Cybernetics was first edited and published by the system scientist Charles François in 1997. The online version that is provided here was based on the 2nd edition in 2004. It was uploaded and gifted to the center by ASC president Michael Lissack in 2019; the BCSSS purchased the rights for the re-publication of this volume in 200?. In 2018, the original editor expressed his wish to pass on the stewardship over the maintenance and further development of the encyclopedia to the Bertalanffy Center. In the future, the BCSSS seeks to further develop the encyclopedia by open collaboration within the systems sciences. Until the center has found and been able to implement an adequate technical solution for this, the static website is made accessible for the benefit of public scholarship and education.

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NK MODEL 2)

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A formal model of "rugged fitness landscapes".

This model has been introduced by S. KAUFFMAN to represent the internal constraints of a complex system. "In this model, N refers to the number of parts of a system – genes in a genotype, amino acids in a protein, or otherwise. Each part marks a fitness contribution which depends upon that part and upon K other parts among the N. That is, K reflects how richly cross-coupled the system is… K measures the richness of epistatic interactions among the components of the system" (1993, p.40).

KAUFFMAN's development and uses of his model (in genetics) are quite technical, but the model seems to be potentially very general.

An intesresting development about this type of model, related to evolutive fitness landcapes can be found in P. BAK's 1996 book "How Nature Works" (p.118-27).

These models are also known as NKC models, C being the number of couplings between some particular trait in various interacting species.

→ Co-evolution; Red Queen Evolutive parable

Categories

  • 1) General information
  • 2) Methodology or model
  • 3) Epistemology, ontology and semantics
  • 4) Human sciences
  • 5) Discipline oriented

Publisher

Bertalanffy Center for the Study of Systems Science(2020).

To cite this page, please use the following information:

Bertalanffy Center for the Study of Systems Science (2020). Title of the entry. In Charles François (Ed.), International Encyclopedia of Systems and Cybernetics (2). Retrieved from www.systemspedia.org/[full/url]

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