Sciweavers

ALIFE
2004
13 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
13 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
13 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
13 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
13 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
13 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
13 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
ALIFE
2004
13 years 11 months ago
Avida: A Software Platform for Research in Computational Evolutionary Biology
The Avida digital evolution platform is a software tool used to perform experimental evolution research with self-replicating computer programs ("digital organisms"). Av...
Charles Ofria, Claus O. Wilke
ALIFE
2004
13 years 11 months ago
Using Avida to Test the Effects of Natural Selection on Phylogenetic Reconstruction Methods
Phylogenetic trees group organisms by their ancestral relationships. There are a number of distinct algorithms used to reconstruct these trees from molecular sequence data, but dif...
George I. Hagstrom, Dehua H. Hang, Charles Ofria, ...
ALIFE
2004
13 years 11 months ago
Tracking the Trajectories of Evolution
This paper proposes a method of visualizing and measuring evolution in Artificial Life simulations. The evolving population of agents is treated as a dynamical system. The propose...
Mikhail S. Burtsev