Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga Saham

The accuracy of deep learning models in predicting dynamic and non-linear stock market data highly depends on selecting optimal hyperparameters. However, finding optimal hyperparameters can be costly in terms of the model's objective function, as it requires testing all possible combinations of...

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Main Authors: Fandi Presly Simamora, Ronsen Purba, Muhammad Fermi Pasha
Format: Article
Language:English
Published: Department of Mathematics, Universitas Negeri Gorontalo 2025-02-01
Series:Jambura Journal of Mathematics
Subjects:
Online Access:https://ejurnal.ung.ac.id/index.php/jjom/article/view/27166
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author Fandi Presly Simamora
Ronsen Purba
Muhammad Fermi Pasha
author_facet Fandi Presly Simamora
Ronsen Purba
Muhammad Fermi Pasha
author_sort Fandi Presly Simamora
collection DOAJ
description The accuracy of deep learning models in predicting dynamic and non-linear stock market data highly depends on selecting optimal hyperparameters. However, finding optimal hyperparameters can be costly in terms of the model's objective function, as it requires testing all possible combinations of hyperparameter configurations. This research aims to find the optimal hyperparameter configuration for the BiLSTM model using Bayesian Optimization. The study was conducted using three blue-chip stocks from different sectors, namely BBCA, BYAN, and TLKM, with two scenarios of search iterations. The test results show that Bayesian Optimization was able to find the optimal hyperparameter configuration for the BiLSTM model, with the best MAPE values for each stock: BBCA 1.2092%, BYAN 2.0609%, and TLKM 1.2027%. Compared to previous research on Grid Search-BiLSTM, the use of Bayesian Optimization-BiLSTM resulted in lower MAPE values.
format Article
id doaj-art-73de637be9c44475978c25f6ce2ca005
institution DOAJ
issn 2654-5616
2656-1344
language English
publishDate 2025-02-01
publisher Department of Mathematics, Universitas Negeri Gorontalo
record_format Article
series Jambura Journal of Mathematics
spelling doaj-art-73de637be9c44475978c25f6ce2ca0052025-08-20T02:54:54ZengDepartment of Mathematics, Universitas Negeri GorontaloJambura Journal of Mathematics2654-56162656-13442025-02-017181310.37905/jjom.v7i1.271668881Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga SahamFandi Presly Simamora0Ronsen Purba1Muhammad Fermi Pasha2Universitas MikroskilUniversitas MikroskilUniversitas MikroskilThe accuracy of deep learning models in predicting dynamic and non-linear stock market data highly depends on selecting optimal hyperparameters. However, finding optimal hyperparameters can be costly in terms of the model's objective function, as it requires testing all possible combinations of hyperparameter configurations. This research aims to find the optimal hyperparameter configuration for the BiLSTM model using Bayesian Optimization. The study was conducted using three blue-chip stocks from different sectors, namely BBCA, BYAN, and TLKM, with two scenarios of search iterations. The test results show that Bayesian Optimization was able to find the optimal hyperparameter configuration for the BiLSTM model, with the best MAPE values for each stock: BBCA 1.2092%, BYAN 2.0609%, and TLKM 1.2027%. Compared to previous research on Grid Search-BiLSTM, the use of Bayesian Optimization-BiLSTM resulted in lower MAPE values.https://ejurnal.ung.ac.id/index.php/jjom/article/view/27166bilstmbayesian optimizationhyperparameter tuningstock price prediction
spellingShingle Fandi Presly Simamora
Ronsen Purba
Muhammad Fermi Pasha
Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga Saham
Jambura Journal of Mathematics
bilstm
bayesian optimization
hyperparameter tuning
stock price prediction
title Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga Saham
title_full Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga Saham
title_fullStr Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga Saham
title_full_unstemmed Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga Saham
title_short Optimisasi Hyperparameter BiLSTM Menggunakan Bayesian Optimization untuk Prediksi Harga Saham
title_sort optimisasi hyperparameter bilstm menggunakan bayesian optimization untuk prediksi harga saham
topic bilstm
bayesian optimization
hyperparameter tuning
stock price prediction
url https://ejurnal.ung.ac.id/index.php/jjom/article/view/27166
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AT ronsenpurba optimisasihyperparameterbilstmmenggunakanbayesianoptimizationuntukprediksihargasaham
AT muhammadfermipasha optimisasihyperparameterbilstmmenggunakanbayesianoptimizationuntukprediksihargasaham