Surface diffraction structure determination from combinatorial simultaneous optimization
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| Title: | Surface diffraction structure determination from combinatorial simultaneous optimization |
|---|---|
| Authors: | Blanco-Rey, M. maria.blanco@icmm.csic.es, de Andres, Pedro L.1 pedro@icmm.csic.es |
| Source: | Surface Science. Apr2006, Vol. 600 Issue 7, pL91-L95. 0p. |
| Subjects: | Optical diffraction, Electron scattering, Combinatorial optimization, Parameter estimation |
| Abstract: | Abstract: We present a technique to efficiently locate the global minimum of a cost function on a complex multi-dimensional parameter space (e.g. a structural reliability R-factor). The method builds a convergent series of structures from combinatorial simultaneous optimization of all the parameters on different subspaces of the experimental data base. Performance has been tested for two model situations: (1) phase retrieval from electron scattering by a single atom and (2) low-energy electron diffraction analysis of simulated I(V) curves for the Ir(110)-p(2×1) missing row. Compared under the same conditions, a reduction in the computation effort, is found w.r.t. previous state-of-the-art methods (e.g., simulated annealing and genetic algorithms). [Copyright &y& Elsevier] |
| Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.) | |
| Database: | Engineering Source |
| FullText | Text: Availability: 0 |
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| Header | DbId: egs DbLabel: Engineering Source An: 20253990 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Surface diffraction structure determination from combinatorial simultaneous optimization – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Blanco-Rey%2C+M%2E%22">Blanco-Rey, M.</searchLink><i> maria.blanco@icmm.csic.es</i><br /><searchLink fieldCode="AR" term="%22de+Andres%2C+Pedro+L%2E%22">de Andres, Pedro L.</searchLink><relatesTo>1</relatesTo><i> pedro@icmm.csic.es</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Surface+Science%22">Surface Science</searchLink>. Apr2006, Vol. 600 Issue 7, pL91-L95. 0p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Optical+diffraction%22">Optical diffraction</searchLink><br /><searchLink fieldCode="DE" term="%22Electron+scattering%22">Electron scattering</searchLink><br /><searchLink fieldCode="DE" term="%22Combinatorial+optimization%22">Combinatorial optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Parameter+estimation%22">Parameter estimation</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: Abstract: We present a technique to efficiently locate the global minimum of a cost function on a complex multi-dimensional parameter space (e.g. a structural reliability R-factor). The method builds a convergent series of structures from combinatorial simultaneous optimization of all the parameters on different subspaces of the experimental data base. Performance has been tested for two model situations: (1) phase retrieval from electron scattering by a single atom and (2) low-energy electron diffraction analysis of simulated I(V) curves for the Ir(110)-p(2×1) missing row. Compared under the same conditions, a reduction in the computation effort, is found w.r.t. previous state-of-the-art methods (e.g., simulated annealing and genetic algorithms). [Copyright &y& Elsevier] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Surface Science is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.) |
| PLink | https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=20253990 |
| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1016/j.susc.2006.01.049 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 0 StartPage: L91 Subjects: – SubjectFull: Optical diffraction Type: general – SubjectFull: Electron scattering Type: general – SubjectFull: Combinatorial optimization Type: general – SubjectFull: Parameter estimation Type: general Titles: – TitleFull: Surface diffraction structure determination from combinatorial simultaneous optimization Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Blanco-Rey, M. – PersonEntity: Name: NameFull: de Andres, Pedro L. IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 04 Text: Apr2006 Type: published Y: 2006 Identifiers: – Type: issn-print Value: 00396028 Numbering: – Type: volume Value: 600 – Type: issue Value: 7 Titles: – TitleFull: Surface Science Type: main |
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