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Backtracking Search Optimization: A Novel Global Optimization Algorithm for the Inversion of Gravity Anomalies

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dc.creator EKİNCİ, YUNUS LEVENT
dc.creator GÖKTÜRKLER, GÖKHAN
dc.creator BALKAYA, ÇAĞLAYAN
dc.date 2021-09-01T00:00:00Z
dc.date.accessioned 2021-12-03T11:30:12Z
dc.date.available 2021-12-03T11:30:12Z
dc.identifier 6d60f506-cfa8-42ef-8a50-47aa4e9a8c0c
dc.identifier 10.1007/s00024-021-02855-3
dc.identifier https://avesis.sdu.edu.tr/publication/details/6d60f506-cfa8-42ef-8a50-47aa4e9a8c0c/oai
dc.identifier.uri http://acikerisim.sdu.edu.tr/xmlui/handle/123456789/92429
dc.description In this paper, an implementation of Backtracking search optimization (BSA), a non-gradient iterative evolutionary algorithm, is presented for model parameter estimation applications using gravity anomalies. This is the first study to use this promising bio-inspired and population-based global optimization algorithm to invert geophysical data sets. We concentrated on demonstrating the efficiency and robustness of the proposed algorithm using some gravity anomalies originated from anticlinal and synclinal structures. Anomaly equations of these geological structures are based on planar approximation. We restricted our study to relatively simple profile data sets. The nature of the inverse problem was assessed by producing cost function topography image maps for the model parameters. The resolvability characteristics and unanticipated possible dependencies between the model parameter pairs were determined using these low misfit region maps. Parameter tuning studies enabled us to determine optimum values for the algorithm-based control parameters of the BSA, and to get the best efficiency from the algorithm. Some synthetic anomalies and two field gravity data sets observed over the Pays De Bray anticline system (France) were successfully inverted through BSA algorithm. In addition, a Markov Chain Monte Carlo method performing Metropolis-Hastings sampler revealed that all solutions obtained are within the confidence intervals without uncertainties. This study shows that the BSA algorithm can be an alternative inversion tool to the most widely applied global optimizers for geophysical anomalies, such as other evolutionary-based algorithms and particle swarm optimization. Additionally, BSA can be used for more complex multi-dimensional geophysical problems having formidable anomaly equations.
dc.language eng
dc.rights info:eu-repo/semantics/closedAccess
dc.title Backtracking Search Optimization: A Novel Global Optimization Algorithm for the Inversion of Gravity Anomalies
dc.type info:eu-repo/semantics/article


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