Plot of DR vs FD.

<div><p>Accurate prediction of mean wave overtopping discharge is essential for the safe and cost-effective design of coastal defence structures. While traditional empirical, physical, and numerical models remain important, Machine Learning (ML) has recently emerged as a powerful complem...

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التفاصيل البيبلوغرافية
المؤلف الرئيسي: M. A. Habib (16839161) (author)
مؤلفون آخرون: S. Abolfathi (16839167) (author), J. J. O’Sullivan (16839164) (author), M. Salauddin (10017388) (author)
منشور في: 2025
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author M. A. Habib (16839161)
author2 S. Abolfathi (16839167)
J. J. O’Sullivan (16839164)
M. Salauddin (10017388)
author2_role author
author
author
author_facet M. A. Habib (16839161)
S. Abolfathi (16839167)
J. J. O’Sullivan (16839164)
M. Salauddin (10017388)
author_role author
dc.creator.none.fl_str_mv M. A. Habib (16839161)
S. Abolfathi (16839167)
J. J. O’Sullivan (16839164)
M. Salauddin (10017388)
dc.date.none.fl_str_mv 2025-12-10T18:38:12Z
dc.identifier.none.fl_str_mv 10.1371/journal.pone.0337830.g009
dc.relation.none.fl_str_mv https://figshare.com/articles/figure/Plot_of_DR_vs_FD_/30852934
dc.rights.none.fl_str_mv CC BY 4.0
info:eu-repo/semantics/openAccess
dc.subject.none.fl_str_mv Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Information Systems not elsewhere classified
influential parameters across
gaussian process regression
coastal defence structures
improved predictive formulae
best predictive performance
practical engineering needs
powerful complementary tool
coastal infrastructure design
respectively ), indicating
five ml algorithms
div >< p
>) based solely
predictive accuracy
reliable tool
practical usability
effective design
>) within
svr ),
gbdt ),
work advances
wave overtopping
validated using
traditional empirical
three kernel
study presents
structured pre
strong agreement
sloped breakwaters
simplified equations
relative freeboard
recently emerged
rae values
q </
processing steps
observed data
new set
model interpretability
ml findings
machine learning
lowest rmse
ln (<
gpr yielded
gpr ).
gp ).
genetic programming
freeboard deficit
enhance interpretability
effectively modelling
driven techniques
based models
dc.title.none.fl_str_mv Plot of DR vs FD.
dc.type.none.fl_str_mv Image
Figure
info:eu-repo/semantics/publishedVersion
image
description <div><p>Accurate prediction of mean wave overtopping discharge is essential for the safe and cost-effective design of coastal defence structures. While traditional empirical, physical, and numerical models remain important, Machine Learning (ML) has recently emerged as a powerful complementary tool. This study presents a ML–based framework to predict mean wave overtopping discharge at sloped breakwaters, with a focus on both predictive accuracy and model interpretability, supported by a series of structured pre- and post-processing steps. Five ML algorithms were evaluated: two decision tree–based models, i.e., Random Forest (RF) and Gradient Boosted Decision Trees (GBDT), and three kernel-based models, i.e., Artificial Neural Networks (ANN), Support Vector Regression (SVR), and Gaussian Process Regression (GPR). The models were trained and validated using the EurOtop (2018) dataset on sloped breakwaters. Among them, GPR yielded the best predictive performance, achieving an R² of 0.80 and the lowest RMSE, MAE, and RAE values (0.100, 0.013, and 0.30, respectively), indicating a strong agreement with observed data. Feature importance analysis revealed that Relative Freeboard and Freeboard Deficit (FD) were the most influential parameters across the models. To enhance interpretability and practical usability, we translated the ML findings into mathematical expressions using polynomial regression and Genetic Programming (GP). A new set of simplified equations was developed to estimate mean overtopping discharge (<i>q</i>) based solely on FD, effectively modelling the relationship between FD and ln(<i>q</i>) within the EurOtop dataset. The proposed formulae provide coastal engineers with a rapid, interpretable, and reliable tool for estimating mean wave overtopping, significantly enhancing design efficiency and decision-making under uncertainty. By bridging the gap between advanced data-driven techniques and practical engineering needs, this work advances the integration of ML into coastal infrastructure design and supports the development of more adaptive and climate-resilient defence systems.</p></div>
eu_rights_str_mv openAccess
id Manara_6850cc5d3e2c0ed4e8e5eba76af4a4cd
identifier_str_mv 10.1371/journal.pone.0337830.g009
network_acronym_str Manara
network_name_str ManaraRepo
oai_identifier_str oai:figshare.com:article/30852934
publishDate 2025
repository.mail.fl_str_mv
repository.name.fl_str_mv
repository_id_str
rights_invalid_str_mv CC BY 4.0
spelling Plot of DR vs FD.M. A. Habib (16839161)S. Abolfathi (16839167)J. J. O’Sullivan (16839164)M. Salauddin (10017388)Environmental Sciences not elsewhere classifiedBiological Sciences not elsewhere classifiedMathematical Sciences not elsewhere classifiedInformation Systems not elsewhere classifiedinfluential parameters acrossgaussian process regressioncoastal defence structuresimproved predictive formulaebest predictive performancepractical engineering needspowerful complementary toolcoastal infrastructure designrespectively ), indicatingfive ml algorithmsdiv >< p>) based solelypredictive accuracyreliable toolpractical usabilityeffective design>) withinsvr ),gbdt ),work advanceswave overtoppingvalidated usingtraditional empiricalthree kernelstudy presentsstructured prestrong agreementsloped breakwaterssimplified equationsrelative freeboardrecently emergedrae valuesq </processing stepsobserved datanew setmodel interpretabilityml findingsmachine learninglowest rmseln (<gpr yieldedgpr ).gp ).genetic programmingfreeboard deficitenhance interpretabilityeffectively modellingdriven techniquesbased models<div><p>Accurate prediction of mean wave overtopping discharge is essential for the safe and cost-effective design of coastal defence structures. While traditional empirical, physical, and numerical models remain important, Machine Learning (ML) has recently emerged as a powerful complementary tool. This study presents a ML–based framework to predict mean wave overtopping discharge at sloped breakwaters, with a focus on both predictive accuracy and model interpretability, supported by a series of structured pre- and post-processing steps. Five ML algorithms were evaluated: two decision tree–based models, i.e., Random Forest (RF) and Gradient Boosted Decision Trees (GBDT), and three kernel-based models, i.e., Artificial Neural Networks (ANN), Support Vector Regression (SVR), and Gaussian Process Regression (GPR). The models were trained and validated using the EurOtop (2018) dataset on sloped breakwaters. Among them, GPR yielded the best predictive performance, achieving an R² of 0.80 and the lowest RMSE, MAE, and RAE values (0.100, 0.013, and 0.30, respectively), indicating a strong agreement with observed data. Feature importance analysis revealed that Relative Freeboard and Freeboard Deficit (FD) were the most influential parameters across the models. To enhance interpretability and practical usability, we translated the ML findings into mathematical expressions using polynomial regression and Genetic Programming (GP). A new set of simplified equations was developed to estimate mean overtopping discharge (<i>q</i>) based solely on FD, effectively modelling the relationship between FD and ln(<i>q</i>) within the EurOtop dataset. The proposed formulae provide coastal engineers with a rapid, interpretable, and reliable tool for estimating mean wave overtopping, significantly enhancing design efficiency and decision-making under uncertainty. By bridging the gap between advanced data-driven techniques and practical engineering needs, this work advances the integration of ML into coastal infrastructure design and supports the development of more adaptive and climate-resilient defence systems.</p></div>2025-12-10T18:38:12ZImageFigureinfo:eu-repo/semantics/publishedVersionimage10.1371/journal.pone.0337830.g009https://figshare.com/articles/figure/Plot_of_DR_vs_FD_/30852934CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/308529342025-12-10T18:38:12Z
spellingShingle Plot of DR vs FD.
M. A. Habib (16839161)
Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Information Systems not elsewhere classified
influential parameters across
gaussian process regression
coastal defence structures
improved predictive formulae
best predictive performance
practical engineering needs
powerful complementary tool
coastal infrastructure design
respectively ), indicating
five ml algorithms
div >< p
>) based solely
predictive accuracy
reliable tool
practical usability
effective design
>) within
svr ),
gbdt ),
work advances
wave overtopping
validated using
traditional empirical
three kernel
study presents
structured pre
strong agreement
sloped breakwaters
simplified equations
relative freeboard
recently emerged
rae values
q </
processing steps
observed data
new set
model interpretability
ml findings
machine learning
lowest rmse
ln (<
gpr yielded
gpr ).
gp ).
genetic programming
freeboard deficit
enhance interpretability
effectively modelling
driven techniques
based models
status_str publishedVersion
title Plot of DR vs FD.
title_full Plot of DR vs FD.
title_fullStr Plot of DR vs FD.
title_full_unstemmed Plot of DR vs FD.
title_short Plot of DR vs FD.
title_sort Plot of DR vs FD.
topic Environmental Sciences not elsewhere classified
Biological Sciences not elsewhere classified
Mathematical Sciences not elsewhere classified
Information Systems not elsewhere classified
influential parameters across
gaussian process regression
coastal defence structures
improved predictive formulae
best predictive performance
practical engineering needs
powerful complementary tool
coastal infrastructure design
respectively ), indicating
five ml algorithms
div >< p
>) based solely
predictive accuracy
reliable tool
practical usability
effective design
>) within
svr ),
gbdt ),
work advances
wave overtopping
validated using
traditional empirical
three kernel
study presents
structured pre
strong agreement
sloped breakwaters
simplified equations
relative freeboard
recently emerged
rae values
q </
processing steps
observed data
new set
model interpretability
ml findings
machine learning
lowest rmse
ln (<
gpr yielded
gpr ).
gp ).
genetic programming
freeboard deficit
enhance interpretability
effectively modelling
driven techniques
based models