Modelling group-foraging behaviour with particle swarms

Authors:
Cecilia Di Chio;Riccardo Poli;Paolo Di Chio
Affiliations:
Department of Computer Science, University of Essex, UK;Department of Computer Science, University of Essex, UK;Dipartimento di Sistemi e Istituzioni per l'Economia, University of L'Aquila, Italy
Venue:
PPSN'06 Proceedings of the 9th international conference on Parallel Problem Solving from Nature
Year:
2006

Citing 2
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Abstract

Despite the many features that the behaviour of the standard particle swarm algorithm shares with grouping behaviour in animals (e.g. social attraction and communication between individuals), this biologically inspired technique has been mainly used in classical optimisation problems (i.e. finding the optimal value in a fitness landscape). We present here a novel application for particle swarms: the simulation of group-foraging in animals. Animals looking for food sources are modelled as particles in a swarm moving over an abstract food landscape. The particles are guided to the food by a smell (or aura), which surrounds it and whose intensity is proportional to the amount of food available. The results show that this new extended version of the algorithm produces qualitatively realistic behaviour. For example, the simulation shows the emergence of group-foraging behaviour among particles.