Results 21 to 30 of about 43,032 (264)

Is one hyperparameter optimizer enough? [PDF]

open access: yesProceedings of the 4th ACM SIGSOFT International Workshop on Software Analytics, 2018
Hyperparameter tuning is the black art of automatically finding a good combination of control parameters for a data miner. While widely applied in empirical Software Engineering, there has not been much discussion on which hyperparameter tuner is best for software analytics.
Huy Tu, Vivek Nair
openaire   +2 more sources

Fault Diagnosis of Motor Bearings Based on a Convolutional Long Short-Term Memory Network of Bayesian Optimization

open access: yesIEEE Access, 2021
As the main driving equipment of modern industrial production activities, if a motor fails, it causes serious consequences. Bearings are the component with the highest motor failure frequency.
Zhen Li, Yang Wang, Jianeng Ma
doaj   +1 more source

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

Hyperparameter Optimization [PDF]

open access: yes, 2019
Recent interest in complex and computationally expensive machine learning models with many hyperparameters, such as automated machine learning (AutoML) frameworks and deep neural networks, has resulted in a resurgence of research on hyperparameter optimization (HPO). In this chapter, we give an overview of the most prominent approaches for HPO.
Feurer, Matthias, Hutter, Frank
openaire   +2 more sources

Enhanced Deep Deterministic Policy Gradient Algorithm Using Grey Wolf Optimizer for Continuous Control Tasks

open access: yesIEEE Access, 2023
Deep Reinforcement Learning (DRL) allows agents to make decisions in a specific environment based on a reward function, without prior knowledge. Adapting hyperparameters significantly impacts the learning process and time.
Ebrahim Hamid Hasan Sumiea   +6 more
doaj   +1 more source

Hyperparameter Optimization: A Spectral Approach

open access: yesCoRR, 2017
We give a simple, fast algorithm for hyperparameter optimization inspired by techniques from the analysis of Boolean functions. We focus on the high-dimensional regime where the canonical example is training a neural network with a large number of hyperparameters.
Elad Hazan   +2 more
openaire   +3 more sources

Impact of Hyperparameter Optimization on Cross-Version Defect Prediction: An Empirical Study [PDF]

open access: yesJisuanji kexue yu tansuo, 2023
In the field of machine learning, hyperparameters are one of the key factors that affect prediction performance. Previous studies have shown that optimizing hyperparameters can improve the performance of inner-version defect prediction and cross-project ...
HAN Hui, YU Qiao, ZHU Yi
doaj   +1 more source

A Comparison of AutoML Hyperparameter Optimization Tools For Tabular Data

open access: yesProceedings of the International Florida Artificial Intelligence Research Society Conference, 2023
The performance of machine learning (ML) methods for classification and regression tasks applied to tabular datasets is sensitive to hyperparameters values.
Prativa Pokhrel, Alina Lazar
doaj   +1 more source

Rectangularization of Gaussian process regression for optimization of hyperparameters

open access: yesMachine Learning with Applications, 2023
Gaussian process regression (GPR) is a powerful machine learning method which has recently enjoyed wider use, in particular in physical sciences. In its original formulation, GPR uses a square matrix of covariances among training data and can be viewed ...
Sergei Manzhos, Manabu Ihara
doaj   +1 more source

Optimizing Deep Learning Hyperparameters Using Interpolation-Based Optimization [PDF]

open access: yesControl and Optimization in Applied Mathematics
Hyperparameter optimization (HPO) is essential for maximizing the performance of deep learning models. Traditional approaches, such as grid search and Bayesian Optimization (BO), are widely used but can be computationally expensive.
Michael Oluwaseun Ayansiji   +1 more
doaj   +1 more source

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