Results 21 to 30 of about 109,092 (251)

Understanding Bitcoin Price Prediction Trends under Various Hyperparameter Configurations

open access: yesComputers, 2022
Since bitcoin has gained recognition as a valuable asset, researchers have begun to use machine learning to predict bitcoin price. However, because of the impractical cost of hyperparameter optimization, it is greatly challenging to make accurate ...
Jun-Ho Kim, Hanul Sung
doaj   +1 more source

Metalearning for Hyperparameter Optimization [PDF]

open access: yes, 2022
SummaryThis chapter describes various approaches for the hyperparameter optimization (HPO) and combined algorithm selection and hyperparameter optimization problems (CASH). It starts by presenting some basic hyperparameter optimization methods, including grid search, random search, racing strategies, successive halving and hyperband. Next, it discusses
Brazdil, Pavel   +3 more
openaire   +2 more sources

PyHopper -- Hyperparameter optimization

open access: yes, 2022
Hyperparameter tuning is a fundamental aspect of machine learning research. Setting up the infrastructure for systematic optimization of hyperparameters can take a significant amount of time. Here, we present PyHopper, a black-box optimization platform designed to streamline the hyperparameter tuning workflow of machine learning researchers. PyHopper's
Lechner, Mathias   +4 more
openaire   +2 more sources

Optimization of hyperparameters for SMS reconstruction [PDF]

open access: yesMagnetic Resonance Imaging, 2020
Simultaneous multi-slice (SMS) imaging accelerates MRI data acquisition by exciting multiple image slices simultaneously. Overlapping slices are then separated using a mathematical model. Several parameters used in SMS reconstruction impact the quality of final images. Therefore, finding an optimal set of reconstruction parameters is critical to ensure
Muftuler, L. Tugan   +7 more
openaire   +3 more sources

Theoretical Aspects in Penalty Hyperparameters Optimization

open access: yesMediterranean Journal of Mathematics, 2023
AbstractLearning processes play an important role in enhancing understanding and analyzing real phenomena. Most of these methodologies revolve around solving penalized optimization problems. A significant challenge arises in the choice of the penalty hyperparameter, which is typically user-specified or determined through Grid search approaches.
Esposito F., Selicato L., Sportelli C.
openaire   +4 more sources

Federated learning with hyper-parameter optimization

open access: yesJournal of King Saud University: Computer and Information Sciences, 2023
Federated Learning is a new approach for distributed training of a deep learning model on data scattered across a large number of clients while ensuring data privacy.
Majid Kundroo, Taehong Kim
doaj   +1 more source

Symbolic Explanations for Hyperparameter Optimization

open access: yesInternational Conference on AutoML, 2023
Hyperparameter optimization (HPO) methods can determine well-performing hyperparameter configurations efficiently but often lack insights and transparency. We propose to apply symbolic regression to meta-data collected with Bayesian optimization (BO) during HPO.
Segel, Sarah   +4 more
openaire   +3 more sources

Promoting Fairness through Hyperparameter Optimization [PDF]

open access: yes2021 IEEE International Conference on Data Mining (ICDM), 2021
Considerable research effort has been guided towards algorithmic fairness but real-world adoption of bias reduction techniques is still scarce. Existing methods are either metric- or model-specific, require access to sensitive attributes at inference time, or carry high development or deployment costs.
Cruz, André F.   +4 more
openaire   +2 more sources

Hyperparameter Tuning on Classification Algorithm with Grid Search

open access: yesSistemasi: Jurnal Sistem Informasi, 2022
Currently, machine learning algorithms continue to be developed to perform optimization with various methods to produce the best-performing model. In Supervised learning or classification, most of the algorithms have hyperparameters.
Wahyu Nugraha, Agung Sasongko
doaj   +1 more source

KNN Optimization Using Grid Search Algorithm for Preeclampsia Imbalance Class [PDF]

open access: yesE3S Web of Conferences, 2023
The performance of predicted models is greatly affected when the dataset is highly imbalanced and the sample size increases. Imbalanced training data have a major negative impact on performance.
Sukamto, Hadiyanto, Kurnianingsih
doaj   +1 more source

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