Results 21 to 30 of about 105,297 (262)

Использование модели нейронной сети глубокого обучения для решения проблем классификации нежелательного контента в социальных сетях

open access: yesVestnik KRAUNC: Fiziko-Matematičeskie Nauki, 2021
При решении задач классификации с использование глубокого обучения сталкиваются с проблемой сходимости модели. Такая проблема возникает из за ограниченного объема данных в выборках.
Бобин, А.С.
doaj   +1 more source

A Reinforcement One-Shot Active Learning Approach for Aircraft Type Recognition

open access: yesIEEE Access, 2019
Target recognition is an important aspect of air traffic management, but the study on automatic aircraft identification is still in the exploratory stage.
Honglan Huang   +4 more
doaj   +1 more source

Entropy Theory for Cross-Sections [PDF]

open access: yesGeometric and Functional Analysis, 2010
We define the notion of entropy for a cross section of an action of continuous amenable group and relate it to the entropy of the ambient action. As a result, we are able to answer a question of J.P. Thouvenot about completely positive entropy actions.
openaire   +2 more sources

Active function Cross-Entropy Clustering

open access: yesExpert Systems with Applications, 2017
Gaussian Mixture Models (GMM) have found many applications in density estimation and data clustering. However, the model does not adapt well to curved and strongly nonlinear data. Recently there appeared an improvement called AcaGMM (Active curve axis Gaussian Mixture Model), which fits Gaussians along curves using an EM-like (Expectation Maximization)
Spurek, Przemysław   +2 more
openaire   +3 more sources

Ricci Curvature-Based Semi-Supervised Learning on an Attributed Network

open access: yesEntropy, 2021
In recent years, on the basis of drawing lessons from traditional neural network models, people have been paying more and more attention to the design of neural network architectures for processing graph structure data, which are called graph neural ...
Wei Wu, Guangmin Hu, Fucai Yu
doaj   +1 more source

Fuzzy cross-entropy [PDF]

open access: yesJournal of Uncertainty Analysis and Applications, 2015
This paper deals with the divergence of fuzzy variables from a priori one. Within the framework of credibility theory, a fuzzy cross-entropy is defined to measure the divergence, and some mathematical properties are investigated. Furthermore, a minimum cross-entropy principle is proposed, which tells us that out of all membership functions satisfying ...
openaire   +1 more source

Parallel cross-entropy optimization [PDF]

open access: yes2007 Winter Simulation Conference, 2007
The cross-entropy (CE) method is a modern and effective optimization method well suited to parallel implementations. There is a vast array of problems today, some of which are highly complex and can take weeks or even longer to solve using current optimization techniques.
Evans, Gareth   +2 more
openaire   +2 more sources

Improved Cross Entropy Method for Well-Being Evaluation of Composite Generation and Transmission Systems

open access: yesIEEE Access, 2023
Well-Being analysis is an approach that integrates deterministic criteria with probabilistic methods, and it plays a crucial role in the operational planning of power systems.
Dongli Xu   +3 more
doaj   +1 more source

Improved Cross Entropy Measures of Single Valued Neutrosophic Sets and Interval Neutrosophic Sets and Their Multicriteria Decision Making Methods

open access: yesCybernetics and Information Technologies, 2015
Due to some drawbacks of the cross entropy between Single Valued Neutrosophic Sets (SVNSs) in dealing with decision-making problems, the existing single valued neutrosophic cross entropy indicates an asymmetrical phenomenon or may produce an undefined ...
Ye Jun
doaj   +1 more source

Joint Early Stopping Criterions for Protograph LDPC Codes-Based JSCC System in Images Transmission

open access: yesEntropy, 2021
In this paper, a joint early stopping criterion based on cross entropy (CE), named joint CE criterion, is presented for double-protograph low-density parity-check (DP-LDPC) codes-based joint source-channel coding (JSCC) systems in images transmission to ...
Zhiping Xu, Lin Wang, Shaohua Hong
doaj   +1 more source

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