NDLI: On Trajectories of Particles in PSO

Content Provider	IEEE Xplore Digital Library
Author	Janson, S. Middendorf, M.
Copyright Year	2007
Description	Author affiliation: Parallel Comput. & Complex Syst. Group, Leipzig Univ. (Janson, S.; Middendorf, M.)
Abstract	The moving behaviour of the particles in particle swarm optimization (PSO) algorithms is studied in this paper. It is shown that particles in standard PSO have a clear bias in their movement direction that depends on the direction of the coordinate axes. This has the effect that the optimization behaviour of standard PSO is not invariant to rotations of the optimization function. A second problem of standard PSO is that non-oscillatory trajectories can quickly cause a particle to stagnate. A sidestep mechanism is proposed to improve the movement of the particles. A particle performs a sidestep with respect to a certain dimension when stagnation of movement along this dimension is observed. It is shown for simple test functions that the movement behaviour of sidestep PSO can prevent the unwanted bias and makes PSO less dependent on rotations of the optimization function. It is also shown for standard benchmark functions that sidestep PSO outperforms standard PSO
Starting Page	150
Ending Page	155
File Size	1936189
Page Count	6
File Format	PDF
ISBN	1424407087
DOI	10.1109/SIS.2007.368039
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2007-04-01
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Multidimensional systems Optimization methods Parallel processing Benchmark testing Iterative algorithms Particle swarm optimization Equations Convergence Guidelines
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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