23 research outputs found

    Evolution of language with spatial topology

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    In this paper, we propose two agent-based simulation models for the evolution of language in the framework of evolutionary language games. The theory of evolutionary language games arose from the union of evolutionary game theory, introduced by the English biologist John Maynard Smith, and language games, developed by the Austrian philosopher Ludwig Wittgenstein. The first model proposed is based on Martin Nowak's work and is designed to reproduce and verify (or refute) the results Nowak obtained in his simplest mathematical model. For the second model, we extend the previous one with the introduction of a world where the languages live and evolve, and which influences interactions among individuals. The main goal of this research is to present a model which shows how the presence of a topological structure influences the communication among individuals and contributes to the emergence of clusters of different languages

    ECOXPS - extended particle swarms to simulate biological systems

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    EThOS - Electronic Theses Online ServiceGBUnited Kingdo

    Extending the Particle Swarm Algorithm to Model Animal Foraging

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    Abstract. The particle swarm algorithm contains elements which map fairly strongly to the foraging problem in behavioural ecology. In this paper, we show how some simple adaptions to the standard algorithm can make it well suited for the foraging problem. We propose two approaches to model foraging behaviour: the first uses a standard particle swarm algorithm, with the particles just slowing down in the proximity of food; the second approach modifies the basic algorithm in order to make the particles actually stop on the food source and remain there to eat. The results show that the changes convert the standard algorithm into one which produces qualitatively realistic behaviour for a simplified model of abstract animals and their foraging environment. This work introduces a new way to look at the particle swarm algorithm, i.e. using it as a simulation tool in the biological field of behavioural ecology. To our knowledge, this is the first time particle swarm algorithms have been applied to problems in biology.
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