Results 111 to 120 of about 1,862,731 (241)

A Hybrid Optimization Model for Transformer Fault Diagnosis Based on Gas Classification

open access: yesDigital
Dissolved gas analysis (DGA) provides valuable information for transformer condition monitoring, yet accurate multi-class fault identification remains challenging due to overlapping gas patterns and the sensitivity of classifier hyperparameters.
Junju Lai   +6 more
doaj   +1 more source

Efficient Hyperparameter Tuning with Dynamic Accuracy Derivative-Free Optimization

open access: yes, 2022
Many machine learning solutions are framed as optimization problems which rely on good hyperparameters. Algorithms for tuning these hyperparameters usually assume access to exact solutions to the underlying learning problem, which is typically not ...
Roberts, Lindon, Ehrhardt, Matthias
core  

Dynamic Priors in Bayesian Optimization for Hyperparameter Optimization

open access: yesCoRR
Bayesian optimization (BO) is a widely used approach to hyperparameter optimization (HPO). However, most existing HPO methods only incorporate expert knowledge during initialization, limiting practitioners' ability to influence the optimization process as new insights emerge. This limits the applicability of BO in iterative machine learning development
Lukas Fehring   +5 more
openaire   +2 more sources

Learning General Gaussian Kernel Hyperparameters for SVR

open access: yes, 2013
International audienceWe propose a new method for general gaussian kernel hyperparameters optimization for support vector regression. The hyperparameters are constrained to lie on a differentiable manifold. The proposed optimization technique is based on
Snoussi, Hichem   +7 more
core   +1 more source

Research on parameter selection and optimization of C4.5 algorithm based on algorithm applicability knowledge base

open access: yesScientific Reports
Given that the decision tree C4.5 algorithm has outstanding performance in prediction accuracy on medical datasets and is highly interpretable, this paper carries out an optimization study on the selection of hyperparameters of the algorithm in order to ...
Yiyan Zhang, Yi Xin, Qin Li
doaj   +1 more source

On Optimizing Hyperparameters for Quantum Neural Networks

open access: yes2024 IEEE International Conference on Quantum Computing and Engineering (QCE)
The increasing capabilities of Machine Learning (ML) models go hand in hand with an immense amount of data and computational power required for training. Therefore, training is usually outsourced into HPC facilities, where we have started to experience limits in scaling conventional HPC hardware, as theorized by Moore's law.
Sabrina Herbst   +2 more
openaire   +2 more sources

Fuzzy hyperparameters update in a second order optimization

open access: yes
This research will present a hybrid approach to accelerate convergence in a second order optimization. An online finite difference approximation of the diagonal Hessian matrix will be introduced, along with fuzzy inferencing of several hyperparameters ...
Bensadok, Abdelaziz   +1 more
core  

Beyond Manual Tuning of Hyperparameters

open access: yes, 2015
The success of hand-crafted machine learning systems in many applications raises the question of making machine learning algorithms more autonomous, i.e., to reduce the requirement of expert input to a minimum. We discuss two strategies towards this goal:
Hutter, Frank   +2 more
core   +1 more source

Short Course on Optimization Technology and Applications in High Frequency and Microwave Circuit Design

open access: yes, 1994
Course notes and advertisement for a Short Course given at the Department of Electromagnetic Theory and Engineering, Duisburg University, Duisburg, Germany. The course was delivered by John W. Bandler and S.H. Chen on October 4 and 5, 1994.
Bandler, John W.   +2 more
core   +1 more source

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