Original scientific paper
https://doi.org/10.18048/2019.57.01.
Artificial neural network for predicting values of residuary resistance per unit weight of displacement
Sandi Baressi Šegota
orcid.org/0000-0002-3015-1024
; Faculty of Engineering Rijeka, University of Rijeka
Nikola Anđelić
orcid.org/0000-0002-0314-243X
; Faculty of Engineering Rijeka, University of Rijeka
Jan Kudláček
orcid.org/0000-0002-9064-9350
; Czech Technical University of Prague
Robert Čep
; VŠB – Technical University of Ostrava
Abstract
This paper proposes the usage of an Artificial neural network (ANN) to predict the values of the residuary resistance per unit weight of displacement from the variables describing ship’s dimensions. For this purpose, a Multilayer perceptron (MLP) regressor ANN is used, with the grid search technique being applied to determine the appropriate properties of the model. After the model training, its quality is determined using R2 value and a Bland-Altman (BA) graph which shows a majority of values predicted falling within the 95% confidence interval. The best model has four hidden layers with ten, twenty, twenty and ten nodes respectively, uses a relu activation function with a constant learning rate of 0.01 and the regularization parameter L2 value of 0.001. The achieved model shows a high regression quality, lacking precision in the higher value range due to the lack of data.
Keywords
artificial intelligence; machine learning; residuary resistance; artificial neural network; multilayer perceptron
Hrčak ID:
232661
URI
Publication date:
31.12.2019.
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