Evolutionary Algorithm for Identifying Discontinuous Parameters of Inverse Problems

Authors:
Zhijian Wu;Dazhi Jiang;Lishan Kang
Affiliations:
The State Key Laboratory of Software Engineering, Wuhan University, Wuhan, China;The State Key Laboratory of Software Engineering, Wuhan University, Wuhan, China;The State Key Laboratory of Software Engineering, Wuhan University, Wuhan, China
Venue:
ICCS '07 Proceedings of the 7th international conference on Computational Science, Part IV: ICCS 2007
Year:
2007

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Abstract

In this paper, we make an investigation into the discontinuous parameter identification in the case of elliptic problem. The discontinuous parameter is identified by evolutionary algorithm for the first time. For this kind of problem, we present a two-level evolutionary algorithm. The first level is the evolution for discontinuous point and the second level is the evolution for parameter. The numerical experiments suggest that the algorithm carries such features as good stability and adaptability and is not very sensitive to the noise in observation data as well.