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Second International Conference on Semantics, Knowledge, and Grid (SKG'06)
Identify Discontinuous Parameter of Parabolic System via Point-Tree Structured Genetic Programming
Guilin, Guangxi, China
November 01-November 03
ISBN: 0-7695-2673-X
Weiwu Wang, Wuhan University, China
Yuanxiang Li, Wuhan University, China
Shengwu Xiong, Wuhan University of Technology, China
Bojin Zheng, South-Central University For Nationalities, China
In this paper, we apply point-tree structured genetic programming (PTGP) to identify a discontinuous parameter of parabolic system. The discontinuous parameter can be decomposed into several subcomponents. Each subcomponent can be represented as a simple function. We call these simple functions as sub-functions. We use the PTGP individual to represent the discontinuous parameter, and evolve these individuals to learn it. During the evolution, the subfunctions and their domains co-evolve and co-adapt automatically. The numerical experiments show PTGP can identify the discontinuous parameter successfully. Compare to the stand genetic programming approach, the performance is improved signigicantly.
Citation:
Weiwu Wang, Yuanxiang Li, Shengwu Xiong, Bojin Zheng, "Identify Discontinuous Parameter of Parabolic System via Point-Tree Structured Genetic Programming," skg, pp.43, Second International Conference on Semantics, Knowledge, and Grid (SKG'06), 2006
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