Fitness Uniform Selection to Preserve Genetic Diversity
In evolutionary algorithms, the fitness of a population increases with time by mutating and recombining individuals and by a biased
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Fitness versus Longevity in Age-Structured Population Dynamics
We examine the dynamics of an age-structured population model in which the life expectancy of an offspring may be mutated
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Analytical Investigation of Innovation Dynamics Considering Stochasticity in the Evaluation of Fitness
We investigate a selection-mutation model for the dynamics of technological innovation,a special case of reaction-diffusion equations. Although mutations are assumed
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Metastable Evolutionary Dynamics: Crossing Fitness Barriers or Escaping via Neutral Paths?
We analytically study the dynamics of evolving populations that exhibit metastability on the level of phenotype or fitness. In constant
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System Fitness and the Extinction Patterns of Firms under Pure Economic Competition
The relationships which characterise the outcomes of the interactions between firms in the economy appear to follow power law behaviour.
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Tournament versus Fitness Uniform Selection
In evolutionary algorithms a critical parameter that must be tuned is that of selection pressure. If it is set too
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Effects of neutral selection on the evolution of molecular species
We introduce a new model of evolution on a fitness landscape possessing a tunable degree of neutrality. The model allows
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Effects of regulation on a self-organized market
Adapting a simple biological model, we study the effects of control on the market. Companies are depicted as sites on
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Efficiency Enhancement of Probabilistic Model Building Genetic Algorithms
This paper presents two different efficiency-enhancement techniques for probabilistic model building genetic algorithms. The first technique proposes the use of
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Mutation-Selection Balance: Ancestry, Load, and Maximum Principle
We show how concepts from statistical physics, such as order parameter, thermodynamic limit, and quantum phase transition, translate into biological
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Non-triviality of a discrete Bak-Sneppen evolution model
Consider the following evolution model, proposed in \cite{BS} by Bak and Sneppen. Put $N$ vertices on a circle, spaced evenly.
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Optimizing Epochal Evolutionary Search: Population-Size Dependent Theory
Epochal dynamics, in which long periods of stasis in an evolving population are punctuated by a sudden burst of change,
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Scale-free Networks without Growth or Preferential Attachment: Good get Richer
A new mechanism leading to scale-free networks is proposed in this letter. It is shown that in many cases of
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Tempo and mode in quasispecies evolution
Evolutionary dynamics in an uncorrelated rugged fitness landscape is studied in the framework of Eigen's molecular quasispecies model. We consider
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The Evolutionary Unfolding of Complexity
We analyze the population dynamics of a broad class of fitness functions that exhibit epochal evolution---a dynamical behavior, commonly observed
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Who runs fastest in an adaptive landscape: Sexual versus asexual reproduction
We compare the speed with which a sexual, respectively an asexual, population is able to respond to a biased selective
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1/f spectrum in the information transfer model for mass extinction
We study the information transfer model for biological evolution with several kinds of fitness function. The system is stimulated to
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A Discipline of Evolutionary Programming
Genetic fitness optimization using small populations or small population updates across generations generally suffers from randomly diverging evolutions. We propose
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A perturbative approach to the Bak and Sneppen Model
We study here the Bak and Sneppen model, a prototype model for the study of Self-Organized Criticality. In this model
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Competition and multiscaling in evolving networks
The rate at which nodes in a network increase their connectivity depends on their fitness to compete for links. For
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Four-state quantum chain as a model of sequence evolution
A variety of selection-mutation models for DNA (or RNA) sequences, well known in molecular evolution, can be translated into a
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On the limit behaviour of the Bak-Sneppen evolution model
One of the key problems related to the Bak-Sneppen evolution model on the circle is to compute the limit distribution
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On the NP-Completeness of Some Graph Cluster Measures
Graph clustering is the problem of identifying sparsely connected dense subgraphs (clusters) in a given graph. Proposed clustering algorithms usually
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Optimizing Epochal Evolutionary Search: Population-Size Independent Theory
Epochal dynamics, in which long periods of stasis in population fitness are punctuated by sudden innovations, is a common behavior
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