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Titel |
Identifying sets of acceptable solutions to non-linear, geophysical inverse problems which have complicated misfit functions |
VerfasserIn |
A. Lomax, R. Snieder |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1023-5809
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Digitales Dokument |
URL |
Erschienen |
In: Nonlinear Processes in Geophysics ; 2, no. 3/4 ; Nr. 2, no. 3/4, S.222-227 |
Datensatznummer |
250000256
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Publikation (Nr.) |
copernicus.org/npg-2-222-1995.pdf |
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Zusammenfassung |
A goal of geophysical inversion is to identify all models which
give an acceptable misfit between predicted and observed data. However, because of the
complexity of Earth structure, the non-linearity of physical processes in the Earth, and
the insufficiency of geophysical data, many geophysical inverse problems may have a large
number of distinct, acceptable solutions. These problems may be characterized by a
complicated surface for the misfit function in the solution parameter space. For exploring
such a surface, direct inversion and simple random search methods are often inadequate.
However, directed search methods such as the genetic algorithm can be configured to
balance convergent and random processes to find large sets of solutions that span the
acceptable regions of complicated misfit surfaces. |
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