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The economy as an evolving complex system

1988

Persistent link: https://www.econbiz.de/10000129594

The economy as an evolving complex system

Arthur, W. Brian (contributor); … - 1997

Persistent link: https://www.econbiz.de/10000636633

Dynamics of a Simple Evolutionary Process

Stauffer, Dietrich; Newman, M. E. J. - Santa Fe Institute - 2001

We study the simple evolutionary process in which we repeatedly find the least fit agent in a population of agents and give it a new fitness which is chosen independently at random from a specified distribution. We show that many of the average properties of this process can be calculated...

Persistent link: https://www.econbiz.de/10005260362

Evolving Ant Colony Optimization

Botee, Hozefa M.; Bonabeau, Eric - Santa Fe Institute - 1999

, 1995) and Gambardella et al.}(1997) have proposed a remarkable optimization method, Ant Colony Optimization (ACO), which … they applied to classical NP-hard combinatorial optimization problems, such as the traveling salesman problem (Lawler et al … parameters are selected using a systematic procedure. More precisely we use a genetic algorithm (Goldberg, 1989) to evolve ACO …

Persistent link: https://www.econbiz.de/10005739934

Optimization in Complex Networks

Cancho, Ramon Ferrer i; Solé, Ricard V. - Santa Fe Institute - 2001

origin of these topologies use growing graphs, here we show that a simple optimization process can also account for the … observed regularities displayed by most complex nets. Using an evolutionary algorithm involving minimization of link density …

Persistent link: https://www.econbiz.de/10005739984

Stochastic Modeling and Optimization of Phage Display

Levitan, Bennett - Santa Fe Institute - 1997

Phage display, SELEX and other methods of combinatorial chemistry have become very popular means of finding ligands with high affinities to given targets. Despite their success, they suffer from numerous sources of error and bias, such as very low initial concentrations of species, non-specific...

Persistent link: https://www.econbiz.de/10005790639

Optimal Design, Robustness, and Risk Aversion

Newman, M. E. J.; Girvan, Michelle; Farmer, J. Doyne - Santa Fe Institute - 2002

Highly optimized tolerance is a model of optimization in engineered systems, which gives rise to power …

Persistent link: https://www.econbiz.de/10005790761

Shaping Space: The Possible and the Attainable in RNA Genotype-Phenotype Mapping

Fontana, Walter; Schuster, Peter - Santa Fe Institute - 1997

evolutionary optimization. …

Persistent link: https://www.econbiz.de/10005790850

Optimizing Epochal Evolutionary Search: Population-Size Dependent Theory

Nimwegen, Erik van; Crutchfield, James P. - Santa Fe Institute - 1998

Technological change at the firm level has commonly been modeled as random sampling from a fixed distribution o f possibilities. Such models, however, typically ignore empirically important aspects of the firm's search process, notably the observation that the present state of the firm guides...

Persistent link: https://www.econbiz.de/10005791001

Evolution on Random Structures

Reidys, Christian M.; Fraser, Simon M. - Santa Fe Institute - 1995

the dynamics of the optimization process. This results in a non-linear relation between the fraction of tertiary … results have important implications for evolutionary optimization in biopolymers, in particular the evolution of viruses. …

Persistent link: https://www.econbiz.de/10005791065