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ALIFE
2004
9 years 11 months ago
Autopoiesis and Cognition
This article revisits the concept of autopoiesis and examines its relation to cognition and life. We present a mathematical model of a 3D tesselation automaton, considered as a min...
Paul Bourgine, John Stewart
ALIFE
2004
9 years 11 months ago
The Data-and-Signals Cellular Automaton and Its Application to Growing Structures
In a traditional cellular automaton (CA) a cell is implemented by a rule table defining its state at the next time step, given its present state and those of its neighbors. The cel...
André Stauffer, Moshe Sipper
ALIFE
2004
9 years 11 months ago
Influence of Chance, History, and Adaptation on Digital Evolution
We evolved multiple clones of populations of digital organisms to study the effects of chance, history, and adaptation in evolution. We show that clones adapted to a specific envir...
Daniel A. Wagenaar, Christoph Adami
ALIFE
2004
9 years 11 months ago
Bifurcation into Functional Niches in Adaptation
One of the central questions in evolutionary biology concerns the dynamics of adaptation and diversification. This issue can be addressed experimentally if replicate populations ad...
Justin S. White, Christoph Adami
ALIFE
2004
9 years 11 months ago
Basic Autonomy as a Fundamental Step in the Synthesis of Life
In the search for the primary roots of autonomy (a pivotal concept in Varela's comprehensive understanding of living beings), the theory of autopoiesis provided an explicit cr...
Kepa Ruiz-Mirazo, Alvaro Moreno
ALIFE
2004
9 years 11 months ago
Evolution of Robustness in Digital Organisms
We study the evolution of robustness in digital organisms adapting to a high mutation rate. As genomes adjust to the harsh mutational environment, the mean effect of single mutatio...
Jeffrey A. Edlund, Christoph Adami
ALIFE
2004
9 years 11 months ago
Adaptability and Diversity in Simulated Turn-taking Behavior
Turn-taking behavior is simulated in a coupled-agents system. Each agent is modeled as a mobile robot with two wheels. A recurrent neural network is used to produce the motor outpu...
Hiroyuki Iizuka, Takashi Ikegami
ALIFE
2004
9 years 11 months ago
Autopoiesis and Natural Drift: Genetic Information, Reproduction, and Evolution Revisited
The contribution of the theory of autopoiesis to the definition of life and biological theory affirms biological autonomy as a central notion of scientific and philosophical inquir...
Arantza Etxeberria
ALIFE
2004
9 years 11 months ago
Self-Protection and Diversity in Self-Replicating Cellular Automata
The concept of "self-protection", a capability of an organism to protect itself from exogenous attacks, is introduced to the design of artificial evolutionary systems as...
Hiroki Sayama
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