Skip to content

Adaptation, Noise, and Self-Organizing Systems papers — page 7

adap-orgBrowse archive

First Order Nonequilibrium Phase Transition in a Spatially Extended System
We investigate a system of harmonically coupled identical nonlinear constituents subject to noise in different spatial arrangements. For global coupling we find for infinitely many constituents the…
R. Muller, K. Lippert, A. Kuhnel et al.Jun 18, 1997
Learn
Analysis of a dissipative model of self-organized criticality with random neighbors
We analyze a random neighbor version of the OFC stick-slip model. We find that the mean avalanche size is finite as soon as dissipation exists in the bulk but that this size grows exponentially fast…
M. -L. Chabanol, V. HakimJun 9, 1997
Learn
Using microsimulation feedback for trip adaptation for realistic traffic in Dallas
This paper presents a day-to-day re-routing relaxation approach for traffic simulations. Starting from an initial planset for the routes, the route-based microsimulation is executed. The result of…
Kai Nagel, Christopher L BarrettJun 6, 1997
Learn
Adaptation and Optimal Chemotactic Strategy for E. Coli
Extending the classic works of Berg and Purcell on the biophysics of bacterial chemotaxis, we find the optimal chemotactic strategy for the peritrichous bacterium E. Coli in the high and low signal…
S. P. Strong, B. Freedman, William Bialek et al.Jun 3, 1997
Learn
Modeling diffusion of innovations with probabilistic cellular automata
We present a family of one-dimensional cellular automata modeling the diffusion of an innovation in a population. Starting from simple deterministic rules, we construct models parameterized by the…
Nino Boccara, Henryk FuksMay 14, 1997
Learn
Generalized Deterministic Traffic Rules
We study a family of deterministic models for highway traffic flow which generalize cellular automaton rule 184. This family is parametrized by the speed limit m and another parameter k that…
Henryk Fuks, Nino BoccaraMay 14, 1997
Learn
Experiences with a simplified microsimulation for the Dallas/Fort Worth area
We describe a simple framework for micro simulation of city traffic. A medium sized excerpt of Dallas was used to examine different levels of simulation fidelity of a cellular automaton method for…
M. Rickert, Kai NagelMay 12, 1997
Learn
Individual Adaption in a Path-Based Simulation of the Freeway Network of Northrhine-Westfalia
Traffic simulations are made more realistic by giving individual drivers intentions, i.e. an idea of where they want to go. One possible implementation of this idea is to give each driver an exact…
Kai NagelMay 4, 1997
Learn
Autonomous Traffic Signal Control Model with Neural Network Analogy
We propose here an autonomous traffic signal control model based on analogy with neural networks. In this model, the length of cycle time period of traffic lights at each signal is autonomously…
Toru OhiraApr 18, 1997
Learn
A general learning algorithm for solving optimization problems and its application to the spin glass problem
We propose a general learning algorithm for solving optimization problems, based on a simple strategy of trial and adaptation. The algorithm maintains a probability distribution of possible solutions…
Kan ChenApr 17, 1997
Learn
The Study of Correlation Structures of DNA Sequences: A Critical Review
The study of correlation structure in the primary sequences of DNA is reviewed. The issues reviewed include: symmetries among 16 base-base correlation functions, accurate estimation of correlation…
Wentian LiApr 9, 1997
Learn
Cellular Automata Models for Diffusion of Innovations
We propose a probabilistic cellular automata model for the spread of innovations, rumors, news, etc. in a social system. The local rule used in the model is outertotalistic, and the range of…
Henryk Fuks, Nino BoccaraApr 8, 1997
Learn
Car accidents and number of stopped cars due to road blockage on a one-lane highway
Within the framework of a simple model of car traffic on a one-lane highway, we study the probability for car accidents to occur when drivers do not respect the safety distance between cars, and, as…
N. Boccara, H. Fuks, Q. ZengApr 8, 1997
Learn
Mass Extinction in a Simple Mathematical Biological Model
Introducing the effect of extinction into the so-called replicator equations in mathematical biology, we construct a general model of ecosystems. The present model shows mass extinction by its own…
Kei Tokita, Ayumu YasutomiFeb 19, 1997
Learn
A model of mass extinction
A number of authors have in recent years proposed that the processes of macroevolution may give rise to self-organized critical phenomena which could have a significant effect on the dynamics of…
M. E. J. NewmanFeb 12, 1997
Learn
Evolution on a Rugged Landscape:Pinning and Aging
Population dynamics on a rugged landscape is studied analytically and numerically within a simple discrete model for evolution of N individuals in one-dimensional fitness space. We reduce the set of…
Igor Aranson, Lev Tsimring, Valerii VinokurFeb 11, 1997
Learn
Comment on "Self-organized criticality in living systems" by C. Adami
Following extensive numerical experiments, it has been suggested that the evolution of competing computer programs in artificial life simulations shows signs of being a self-organized critical…
M. E. J. Newman, Simon M. Fraser, Kim Sneppen et al.Feb 4, 1997
Learn
Quasi-Linear Cellular Automata
Simulating a cellular automaton (CA) for t time-steps into the future requires t2 serial computation steps or t parallel ones. However, certain CAs based on an Abelian group, such as addition mod 2,…
Cristopher MooreJan 20, 1997
Learn
Coevolution of Symbiotic Species
This paper will consider the coevolution of species which are symbiotic in their interaction. In particular, we shall analyse the interaction of squirrels and oak trees, and develop a mathematical…
Boon Tiong Melvin LeokNov 26, 1996
Learn
Dynamical Equilibrium of Interacting Ant Societies
The sustainable biodiversity associated with a specific ecological niche as a function of land area is analysed computationally by considering the interaction of ant societies over a collection of…
Boon Tiong Melvin LeokNov 26, 1996
Learn
The selection of altruistic behaviour
Altruistic behaviour is disadvantageous for the individual while is advantageous for its group. If the target of the selection is the individual, one would expect the selection process to lead to…
R. Donato, L. Peliti, M. ServaNov 18, 1996
Learn
Analysis of the Effective Degrees of Freedom in Genetic Algorithms
An evolution equation for a population of strings evolving under the genetic operators: selection, mutation and crossover is derived. The corresponding equation describing the evolution of schematas…
C. R. Stephens, H. WaelbroeckNov 13, 1996
Learn
Renormalization group of probabilistic cellular automata with one absorbing state
We apply a recently proposed dynamically driven renormalization group scheme to probabilistic cellular automata having one absorbing state. We have found just one unstable fixed point with one…
M. J. de Oliveira, J. SatulovskyNov 8, 1996
Learn
A model of macroevolution with a natural system size
We describe a simple model of evolution which incorporates the branching and extinction of species lines, and also includes abiotic influences. A first principles approach is taken in which the…
D. A. Head, G. J. RodgersNov 6, 1996
Learn
Spontaneous symmetry breaking and the formation of columnar structures in the primary visual cortex II --- Local organization of orientation modules
Self-organization of orientation-wheels observed in the visual cortex is discussed from the view point of topology. We argue in a generalized model of Kohonen's feature mappings that the…
Kengo YamagishiNov 5, 1996
Learn
← PreviousPage 7Next →