Results 21 to 30 of about 7,587 (302)

Applying the possibilistic C-means algorithm in kernel-induced spaces [PDF]

open access: yes, 2010
In this paper, we study a kernel extension of the classic possibilistic c-means. In the proposed extension, we implicitly map input patterns into a possibly high-dimensional space by means of positive semidefinite kernels. In this new space, we model the
Masulli, F.   +5 more
core   +1 more source

A survey of kernel and spectral methods for clustering [PDF]

open access: yes, 2007
Clustering algorithms are a useful tool to explore data structures and have been employed in many disciplines. The focus of this paper is the partitioning clustering problem with a special interest in two recent approaches: kernel and spectral methods ...
Masulli, F.   +11 more
core   +1 more source

A Reproducing Kernel Hilbert Space approach to singular local stochastic volatility McKean-Vlasov models

open access: yes, 2022
Motivated by the challenges related to the calibration of financial models, we consider the problem of numerically solving a singular McKean-Vlasov equation $$ d X_t= \sigma(t,X_t) X_t \frac{\sqrt v_t}{\sqrt {E[v_t|X_t]}}dW_t, $$ where $W$ is a Brownian ...
Bayer, Christian   +4 more
core   +1 more source

Approximate solution of nonlinear multi-point boundary value problem on the half-line

open access: yesMathematical Modelling and Analysis, 2012
In this work, we construct a novel weighted reproducing kernel space and give the expression of reproducing kernel function skillfully. Based on the orthogonal basis established in the reproducing kernel space, an efficient algorithm is provided to solve
Jing Niu, Ying Zhen Lin, Chi Ping Zhang
doaj   +1 more source

Metamorphosis of images in reproducing kernel Hilbert spaces [PDF]

open access: yesAdvances in Computational Mathematics, 2015
Metamorphosis is a method for diffeomorphic matching of shapes, with many potential applications for anatomical shape comparison in medical imagery, a problem which is central to the field of computational anatomy. An important tool for the practical application of metamorphosis is a numerical method based on shooting from the initial momentum, as this
Casey L. Richardson, Laurent Younes
openaire   +2 more sources

Reproducing kernel functions-based meshless method for variable order fractional advection-diffusion-reaction equations

open access: yesAlexandria Engineering Journal, 2020
In this paper, on the basis of the reproducing kernel functions, a novel meshless algorithm is explored for fractional advection–diffusion-reaction equations (ADREs) with Caputo time variable order.
Xiuying Li, Boying Wu
doaj   +1 more source

Interpreting the dual Riccati equation through the LQ reproducing kernel

open access: yesComptes Rendus. Mathématique, 2021
In this study, we provide an interpretation of the dual differential Riccati equation of Linear-Quadratic (LQ) optimal control problems. Adopting a novel viewpoint, we show that LQ optimal control can be seen as a regression problem over the space of ...
Aubin-Frankowski, Pierre-Cyril
doaj   +1 more source

Reproducing kernel Banach spaces for machine learning [PDF]

open access: yes2009 International Joint Conference on Neural Networks, 2009
Reproducing kernel Hilbert space (RKHS) methods have become powerful tools in machine learning. However, their kernels, which measure similarity of inputs, are required to be symmetric, constraining certain applications in practice. Furthermore, the celebrated representer theorem only applies to regularizers induced by the norm of an RKHS.
Haizhang Zhang   +2 more
openaire   +2 more sources

A Novel Approach to Calculation of Reproducing Kernel on Infinite Interval and Applications to Boundary Value Problems

open access: yesAbstract and Applied Analysis, 2013
A new analytical method for the computation of reproducing kernel is proposed and tested on some examples. The expression of reproducing kernel on infinite interval is obtained concisely in polynomial form for the first time. Furthermore, as a particular
Jing Niu, Yingzhen Lin, Minggen Cui
doaj   +1 more source

New reproducing kernel functions in the reproducing kernel Sobolev spaces

open access: yesAIMS Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Akgul, Ali   +2 more
openaire   +3 more sources

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