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dc.contributor.authorAcar, Erdem
dc.date.accessioned2019-06-26T08:07:00Z
dc.date.available2019-06-26T08:07:00Z
dc.date.issued2014-06
dc.identifier.citationAcar, E. (2014). Simultaneous optimization of shape parameters and weight factors in ensemble of radial basis functions. Structural and Multidisciplinary Optimization, 49(6), 969-978.en_US
dc.identifier.issn1615-147X
dc.identifier.urihttps://link.springer.com/article/10.1007/s00158-013-1028-0
dc.identifier.urihttp://hdl.handle.net/20.500.11851/1469
dc.description.abstractRadial basis functions (RBFs) are approximate mathematical models that can mimic the behavior of fast changing responses. Different formulations of RBFs can be combined in the form of an ensemble model to improve prediction accuracy. The conventional approach in constructing an RBF ensemble is based on a two-step procedure. In the first step, the optimal values of the shape parameters of each stand-alone RBF model are determined. In the second step, the shape parameters are fixed to these optimal values and the weight factors of each stand-alone RBF model in the ensemble are optimized. In this paper, simultaneous optimization of shape parameters and weight factors is proposed as an alternative to this two-step procedure for further improvement of prediction accuracy. Gaussian, multiquadric and inverse multiquadric RBF formulations are combined in the ensemble model. The efficiency of the proposed method is evaluated through example problems of varying dimensions from two to twelve. It is found that the proposed method improves the prediction accuracy of the ensemble compared to the conventional two-step procedure for the example problems considered.en_US
dc.description.sponsorshipThe author gratefully acknowledges the funding provided by The Scientific and Technological Research Council of Turkey (TUBITAK), under award 109M537.
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectEnsembleen_US
dc.subjectRadial basis functionen_US
dc.subjectShape parameteren_US
dc.subjectWeight factoren_US
dc.titleSimultaneous optimization of shape parameters and weight factors in ensemble of radial basis functionsen_US
dc.typearticleen_US
dc.relation.journalStructural And Multidisciplinary Optimizationen_US
dc.contributor.departmentTOBB ETU, Faculty of Engineering, Department of Mechanical Engineeringen_US
dc.contributor.departmentTOBB ETÜ, Mühendislik Fakültesi, Makine Mühendisliği Bölümütr_TR
dc.identifier.volume49
dc.identifier.issue6
dc.identifier.startpage969
dc.identifier.endpage978
dc.relation.tubitakScientific and Technological Research Council of Turkey (TUBITAK) [109M537]en_US
dc.contributor.orcidhttp://orcid.org/0000-0002-3661-5563
dc.identifier.wosWOS:000336286800006
dc.identifier.scopus2-s2.0-84901663867
dc.contributor.tobbetuauthorAcar, Erdem
dc.contributor.YOKid143688
dc.identifier.doi10.1007/s00158-013-1028-0
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıtr_TR


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