Results 41 to 50 of about 33,561,195 (290)

Invariance in Kernel Methods by Haar-Integration Kernels [PDF]

open access: yes, 2005
We address the problem of incorporating transformation invariance in kernels for pattern analysis with kernel methods. We introduce a new class of kernels by so called Haar-integration over transformations. This results in kernel functions, which are positive definite, have adjustable invariance, can capture simultaneously various continuous or ...
Haasdonk, Bernard   +2 more
openaire   +2 more sources

Functional Ergodic Time Series Analysis Using Expectile Regression

open access: yesMathematics, 2022
In this article, we study the problem of the recursive estimator of the expectile regression of a scalar variable Y given a random variable X that belongs in functional space.
Fatimah Alshahrani   +5 more
doaj   +1 more source

Attributed Relational SIFT-Based Regions Graph: Concepts and Applications

open access: yesMachine Learning and Knowledge Extraction, 2020
In the real world, structured data are increasingly represented by graphs. In general, the applications concern the most varied fields, and the data need to be represented in terms of local and spatial connections.
Mario Manzo
doaj   +1 more source

A novel approach to attention mechanism using kernel functions: Kerformer

open access: yesFrontiers in Neurorobotics, 2023
Artificial Intelligence (AI) is driving advancements across various fields by simulating and enhancing human intelligence. In Natural Language Processing (NLP), transformer models like the Kerformer, a linear transformer based on a kernel approach, have ...
Yao Gan   +3 more
doaj   +1 more source

An efficient reproducing kernel method for solving the Allen-Cahn equation

open access: yesApplied Mathematics Letters, 2019
In this paper, an efficient reproducing kernel method combined with the finite difference method and the Quasi-Newton method is proposed to solve the Allen–Cahn equation.
J. Niu, Minqiang Xu, G. Yao
semanticscholar   +1 more source

Further enumeration results concerning a recent equivalence of restricted inversion sequences [PDF]

open access: yesDiscrete Mathematics & Theoretical Computer Science, 2022
Let asc and desc denote respectively the statistics recording the number of ascents or descents in a sequence having non-negative integer entries.
Toufik Mansour, Mark Shattuck
doaj   +1 more source

Biologically-Inspired Spike-Based Automatic Speech Recognition of Isolated Digits Over a Reproducing Kernel Hilbert Space

open access: yesFrontiers in Neuroscience, 2018
This paper presents a novel real-time dynamic framework for quantifying time-series structure in spoken words using spikes. Audio signals are converted into multi-channel spike trains using a biologically-inspired leaky integrate-and-fire (LIF) spike ...
Kan Li, José C. Príncipe
doaj   +1 more source

Intelligent Fault Identification for Rolling Element Bearings in Impulsive Noise Environments Based on Cyclic Correntropy Spectra and LSSVM

open access: yesIEEE Access, 2020
Rolling element bearings are important components in various types of industrial equipment. It is necessary to develop advanced fault diagnosis techniques to prevent unexpected accidents caused by bearing failures.
Xuejun Zhao   +3 more
doaj   +1 more source

High Temporal-Resolution Dynamic PET Image Reconstruction Using a New Spatiotemporal Kernel Method

open access: yesbioRxiv, 2018
Current clinical dynamic PET has an effective temporal resolution of 5-10 seconds, which can be adequate for traditional compartmental modeling but is inadequate for exploiting the benefit of more advanced tracer kinetic modeling.
Guobao Wang
semanticscholar   +1 more source

Kernel Methods for Surrogate Modeling

open access: yesCoRR, 2019
This chapter deals with kernel methods as a special class of techniques for surrogate modeling. Kernel methods have proven to be efficient in machine learning, pattern recognition and signal analysis due to their flexibility, excellent experimental performance and elegant functional analytic background.
Santin G., Haasdonk B.
openaire   +2 more sources

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