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Estimation and interpretation of equilibrium scour depth around circular bridge piers by using optimized XGBoost and SHAP.

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Title: Estimation and interpretation of equilibrium scour depth around circular bridge piers by using optimized XGBoost and SHAP.
Authors: Eini, Nasrin1, Bateni, Sayed M.1, Changhyun Jun2 cjun@cau.ac.kr, Heggy, Essam3,4, Band, Shahab S.5
Source: Engineering Applications of Computational Fluid Mechanics. Dec2023, Vol. 17 Issue 1, p1-23. 23p.
Subjects: Bridge foundations & piers, Bridge failures, Standard deviations, Particle swarm optimization, Relativistic particles, Machine learning
Abstract: Most bridge failures result from scouring around bridge piers, resulting in economic losses and risks to public safety. The conventional equations for predicting the depth of scour at bridge piers have several limitations: (1) They mainly use regression-based techniques that cannot robustly capture the nonlinear relationship between the scour depth and its effective variables; (2) they are applicable only to a narrow range of variability of data; and (3) they are typically calibrated using laboratory data rather than field measurements and thus cannot simulate the prototype environment. To overcome these limitations, in this study, three novel hybrid machine learning methods: particle swarm optimization - extreme gradient boosting (PSO -- XGBoost), red fox optimization - XGBoost (RFO -- XGBoost), and relativistic particle swarm optimization - XGBoost (RPSO -- XGBoost) are applied to estimate the scour depth around circular bridge piers, and their effectiveness is validated using three statistical metrics, i.e. the mean absolute error (MAE), root mean square error (RMSE), and coefficient of determination (R²). RPSO -- XGBoost generates the best results for both dimensional and dimensionless data. Moreover, the proposed approaches outperform the state-of-the-art techniques. The SHapley Additive exPlanations (SHAP) method is used to assess the relative significance of the contributing factors for predicting the scour depth. [ABSTRACT FROM AUTHOR]
Copyright of Engineering Applications of Computational Fluid Mechanics is the property of Taylor & Francis Ltd 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.)
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DbLabel: Engineering Source
An: 174742054
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  Data: Estimation and interpretation of equilibrium scour depth around circular bridge piers by using optimized XGBoost and SHAP.
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  Data: <searchLink fieldCode="AR" term="%22Eini%2C+Nasrin%22">Eini, Nasrin</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Bateni%2C+Sayed+M%2E%22">Bateni, Sayed M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Changhyun+Jun%22">Changhyun Jun</searchLink><relatesTo>2</relatesTo><i> cjun@cau.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Heggy%2C+Essam%22">Heggy, Essam</searchLink><relatesTo>3,4</relatesTo><br /><searchLink fieldCode="AR" term="%22Band%2C+Shahab+S%2E%22">Band, Shahab S.</searchLink><relatesTo>5</relatesTo>
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  Data: <searchLink fieldCode="JN" term="%22Engineering+Applications+of+Computational+Fluid+Mechanics%22">Engineering Applications of Computational Fluid Mechanics</searchLink>. Dec2023, Vol. 17 Issue 1, p1-23. 23p.
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  Data: <searchLink fieldCode="DE" term="%22Bridge+foundations+%26+piers%22">Bridge foundations & piers</searchLink><br /><searchLink fieldCode="DE" term="%22Bridge+failures%22">Bridge failures</searchLink><br /><searchLink fieldCode="DE" term="%22Standard+deviations%22">Standard deviations</searchLink><br /><searchLink fieldCode="DE" term="%22Particle+swarm+optimization%22">Particle swarm optimization</searchLink><br /><searchLink fieldCode="DE" term="%22Relativistic+particles%22">Relativistic particles</searchLink><br /><searchLink fieldCode="DE" term="%22Machine+learning%22">Machine learning</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Most bridge failures result from scouring around bridge piers, resulting in economic losses and risks to public safety. The conventional equations for predicting the depth of scour at bridge piers have several limitations: (1) They mainly use regression-based techniques that cannot robustly capture the nonlinear relationship between the scour depth and its effective variables; (2) they are applicable only to a narrow range of variability of data; and (3) they are typically calibrated using laboratory data rather than field measurements and thus cannot simulate the prototype environment. To overcome these limitations, in this study, three novel hybrid machine learning methods: particle swarm optimization - extreme gradient boosting (PSO -- XGBoost), red fox optimization - XGBoost (RFO -- XGBoost), and relativistic particle swarm optimization - XGBoost (RPSO -- XGBoost) are applied to estimate the scour depth around circular bridge piers, and their effectiveness is validated using three statistical metrics, i.e. the mean absolute error (MAE), root mean square error (RMSE), and coefficient of determination (R²). RPSO -- XGBoost generates the best results for both dimensional and dimensionless data. Moreover, the proposed approaches outperform the state-of-the-art techniques. The SHapley Additive exPlanations (SHAP) method is used to assess the relative significance of the contributing factors for predicting the scour depth. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Engineering Applications of Computational Fluid Mechanics is the property of Taylor & Francis Ltd 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.)
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        Value: 10.1080/19942060.2023.2244558
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      – Code: eng
        Text: English
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        PageCount: 23
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        Type: general
      – SubjectFull: Bridge failures
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      – SubjectFull: Standard deviations
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      – SubjectFull: Particle swarm optimization
        Type: general
      – SubjectFull: Relativistic particles
        Type: general
      – SubjectFull: Machine learning
        Type: general
    Titles:
      – TitleFull: Estimation and interpretation of equilibrium scour depth around circular bridge piers by using optimized XGBoost and SHAP.
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            NameFull: Eini, Nasrin
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            NameFull: Bateni, Sayed M.
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            NameFull: Heggy, Essam
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            – D: 01
              M: 12
              Text: Dec2023
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              Y: 2023
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