Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.14365/1646
Title: Prediction of Local Scour around Bridge Piers Using Hierarchical Clustering and Adaptive Genetic Programming
Authors: Oguz, Kaya
Bor Türkben, Aslı
Keywords: Clear-Water Scour
Neural-Networks
Depth
Scale
Publisher: Taylor & Francis Inc
Abstract: The physics of local scour around bridge piers is fairly complex because of multiple forces acting on it. Existing empirical formulas cannot cover all scenarios and soft computing methods require ever greater amounts of data to cover all cases with a single formula or a neural network. The approach proposed in this study brings together observations from over 40 studies, grouping similar observations with hierarchical clustering, and using genetic programming with adaptive operators to evolve formulas specific to each cluster to predict the scour depth. The resulting formulas are made available along with a basic web-based user interface that finds the closest cluster for newly presented data and finds the scour depth using the formula for that cluster. All formulas have R-2 scores over 0.8 and have been validated with validation and testing sets to reduce overfitting. When compared to existing empirical formulas, the generated formulas consistently record higher R-2 scores.
URI: https://doi.org/10.1080/08839514.2021.2001734
https://hdl.handle.net/20.500.14365/1646
ISSN: 0883-9514
1087-6545
Appears in Collections:Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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