Conference contribution
(Conference Contribution)


Towards a Better Understanding of the Local Attractor in Particle Swarm Optimization: Speed and Solution Quality


Publication Details
Author(s): Lange V, Schmitt M, Wanka R
Title edited volumes: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Publisher: Springer Verlag
Publication year: 2014
Conference Proceedings Title: Proc. International Conference on Adaptive and Intelligent Systems (ICAIS)
Pages range: 90-99
ISSN: 1611-3349

Event details
Event: International Conference on Adaptive and Intelligent Systems (ICAIS)
Event location: Bournemouth, UK
Start date of the event: 08/09/2014
End date of the event: 10/09/2014
Language: English

Abstract

Particle Swarm Optimization (PSO) is a popular nature-inspired meta-heuristic for solving continuous optimization problems. Although this technique is widely used, the understanding of the mechanisms that make swarms so successful is still limited. We present the first substantial experimental investigation of the influence of the local attractor on the quality of exploration and exploitation. We compare in detail classical PSO with the social-only variant where local attractors are ignored. To measure the exploration capabilities, we determine how frequently both variants return results in the neighborhood of the global optimum. We measure the quality of exploitation by considering only function values from runs that reached a search point sufficiently close to the global optimum and then comparing in how many digits such values still deviate from the global minimum value. It turns out that the local attractor significantly improves the exploration, but sometimes reduces the quality of the exploitation. The effects mentioned can also be observed by measuring the potential of the swarm. © 2014 Springer International Publishing Switzerland.



How to cite
APA: Lange, V., Schmitt, M., & Wanka, R. (2014). Towards a Better Understanding of the Local Attractor in Particle Swarm Optimization: Speed and Solution Quality. In Proc. International Conference on Adaptive and Intelligent Systems (ICAIS) (pp. 90-99). Springer Verlag.

MLA: Lange, Vanessa, Manuel Schmitt, and Rolf Wanka. "Towards a Better Understanding of the Local Attractor in Particle Swarm Optimization: Speed and Solution Quality." Proceedings of the International Conference on Adaptive and Intelligent Systems (ICAIS), Bournemouth, UK Springer Verlag, 2014. 90-99.

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