Results 11 to 20 of about 2,045,959 (299)

Quaternion-Valued Nonlinear Adaptive Filtering [PDF]

open access: yesIEEE Transactions on Neural Networks, 2011
A class of nonlinear quaternion-valued adaptive filtering algorithms is proposed based on locally analytic nonlinear activation functions. To circumvent the stringent standard analyticity conditions which are prohibitive to the development of nonlinear adaptive quaternion-valued estimation models, we use the fact that stochastic gradient learning ...
Ujang, BC, Took, CC, Mandic, DP
openaire   +3 more sources

A new approach for SPN removal: nearest value based mean filter [PDF]

open access: yesPeerJ Computer Science, 2022
In this study, a new adaptive filter is proposed to eliminate salt and pepper noise (SPN). The basis of the proposed method consists of two-stages. (1) Changing the noisy pixel value with the closest pixel value or assigning their average to the noisy ...
Bülent Turan
doaj   +2 more sources

Adaptive Walks and Extreme Value Theory [PDF]

open access: yesPhysical Review Letters, 2011
4 pages, 2 figures; final version, to appear in Physical Review ...
Neidhart, Johannes, Krug, Joachim
openaire   +3 more sources

Interactive Genetic Algorithm Based on Hybrid Fitness of Evolutionary Individual [PDF]

open access: yesJisuanji gongcheng, 2018
To improve the optimize efficiency of interactive genetic algorithm,this paper proposes an interactive genetic algorithm based on hybrid fitness of evolutionary individuals.The calculation method of fitness uncertainty is designed while analyzing the ...
GUO Guangsong,LI Xiang,HAO Guosheng
doaj   +1 more source

Pandora's Box Problem with Order Constraints [PDF]

open access: yes, 2020
The Pandora's Box Problem, originally formalized by Weitzman in 1979, models selection from set of random, alternative options, when evaluation is costly. This includes, for example, the problem of hiring a skilled worker, where only one hire can be made,
Boodaghians, Shant   +3 more
core   +2 more sources

Self-Organizing Hypercomplex-Valued Adaptive Network

open access: yesNeurocomputing, 2023
A novel, unsupervised, artificial intelligence system is presented, whose input signals and trainable weights consist of complex or hypercomplex values. The system uses the effect given by the complex multiplication that the multiplicand is not only scaled but also rotated.
Simon Hazubski, Harald Hoppe
openaire   +2 more sources

Adaptive Singular Value Thresholding [PDF]

open access: yes2017 International Conference on Sampling Theory and Applications (SampTA), 2017
In this paper, we propose an Adaptive Singular Value Thresholding (ASVT) for low rank recovery under affine constraints. Unlike previous iterative methods that the threshold level is independent of the iteration number, in our proposed method, the threshold in adaptively decreases during iterations.
Zarmehi, Nematollah, Marvasti, Farokh
openaire   +2 more sources

Value of Adaptive Trials and Surrogate Endpoints for Clinical Decision-Making in Rare Cancers

open access: yesFrontiers in Oncology, 2021
Despite high-level endorsement, the number of adaptive Phase II/III trials in rare cancers needs to be improved, with better understanding of their value for clinical decisions in daily practice.
Andriy Krendyukov   +2 more
doaj   +1 more source

The Role of Learning on Insect and Spider Sexual Behaviors, Sexual Trait Evolution, and Speciation

open access: yesFrontiers in Ecology and Evolution, 2019
We review experimental and theoretical evidence that learning in insects and spiders affects the expression of mate preferences and of sexual signals, the evolution of both traits, and ultimately patterns of assortative mating, and speciation. Both males
Emilie Dion   +3 more
doaj   +1 more source

Algorithms and Data Structures for Multi-Adaptive Time-Stepping [PDF]

open access: yes, 2008
Multi-adaptive Galerkin methods are extensions of the standard continuous and discontinuous Galerkin methods for the numerical solution of initial value problems for ordinary or partial differential equations.
Jansson, Johan, Logg, Anders
core   +2 more sources

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