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Functional analytic aspects of non-commutative harmonic analysis
2005
Indagationes mathematicae
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EMBEDDED HILBERT SPACES, REPRODUCING KERNELS AND OPERATORS Hilbert subspaces. Let E be a locally convex space over R or C, for simplicity C. ...
It generalizes the classical reproducing kernels K(x,y) of Hilbert subspaces of the space of continuous functions on X. ...
doi:10.1016/s0019-3577(05)80046-1
fatcat:3vlsyhfz6nc67ea76sfibkgbn4
Multi-lead ECG signal analysis for myocardial infarction detection and localization through the mapping of Grassmannian and Euclidean features into a common Hilbert space
2020
Zenodo
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In this paper we propose a novel approach for the automatic detection and localization of myocardial infarction from multi-lead electrocardiogram signals. ...
The most serious outcome of coronary heart disease is the myocardial infarction, i.e. the rapid and irreversible damage of cardiac muscles, which, if not diagnosed and treated in time, continues to damage ...
subspaces and are extracted from either shallow or deep classifiers is required. and Euclidean features in a Reproducing Kernel Hilbert Space, provides excellent results in
both cases, i.e., detection ...
doi:10.5281/zenodo.3678671
fatcat:im7jcztsfzd4lbqbdts2ktsp74
Gabor Kernels for Textured Image Representation and Classification
[chapter]
2006
Lecture Notes in Computer Science
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Instead of the ordinary filter bank, a reproducing kernel representation is constructed consisting of a sum of several local reproducing kernels. ...
The feature vectors are used to construct a kernel for a support vector classifier. Results are presented for a set of oriented texture images. ...
In this work, we are interested in the construction of a reproducing kernel Hilbert space (RKHS) for images with a kernel derived of the Gabor elementary functions. ...
doi:10.1007/11892755_96
fatcat:k775gzie7nf5fdmr35dap3o7nu
Composite Kernel Local Angular Discriminant Analysis for Multi-Sensor Geospatial Image Analysis
[article]
2016
arXiv
pre-print
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Kernel Hilbert Space (RKHS). ...
In recent work, we proposed and developed an angle-based discriminant analysis approach that projected data onto subspaces with maximal "angular" separability in the input (raw) feature space and Reproducible ...
Several of these methods are implemented in both the input (raw) feature space and the Reproducible Kernel Hilbert Space (RKHS) for data that are nonlinearly separable. ...
arXiv:1607.04939v1
fatcat:f4zslal3nnbezhc5r33asvbgji
When VLAD Met Hilbert
2016
2016 IEEE Conference on Computer Vision and Pattern Recognition (CVPR)
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In this paper, we address two fundamental limitations of VLAD: its requirement for the local descriptors to have vector form and its restriction to linear classifiers due to its high-dimensionality. ...
Our results also evidence the benefits of our nonlinear VLAD descriptors against the linear ones in Euclidean space using several standard benchmark datasets. ...
In particular, we first derive a kernelized version of VLAD that relies on mapping each local descriptor to a Reproducing Kernel Hilbert Space (RKHS). ...
doi:10.1109/cvpr.2016.560
dblp:conf/cvpr/HarandiSP16
fatcat:yhhhwhrs3vgz7aahmii2jyomfq
Mixed Region Covariance Discriminative Learning for Image Classification on Riemannian Manifolds
2019
Mathematical Problems in Engineering
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Kernel Hilbert Space (RKHS) and then project it onto a subspace of the RKHS. ...
In this paper, we propose a subspace projection framework for the classification task on Riemannian manifolds and give the mathematical derivation for it. ...
Kernelbased methods embed the manifold into a high-dimensional Reproducing Kernel Hilbert Spaces (RKHS) and further project the elements in RKHS onto Euclidean space by an explicit mapping. ...
doi:10.1155/2019/1261398
fatcat:s6sn5wypsnb2hoedthukh7v4na
Page 1810 of Mathematical Reviews Vol. , Issue 2000c
[page]
2000
Mathematical Reviews
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The classical concept of Berezin transform, usually associated with Hilbert spaces of holomorphic functions of Bergman type, is considered in a general setting of reproducing kernel Hilbert spaces H C ...
The reproducing kernel K of H gives rise to a bounded “diagonalization operator”
M:H @H — L? ...
Piecewise smooth system identification in reproducing kernel Hilbert space
2014
53rd IEEE Conference on Decision and Control
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This is tackled by simultaneously learning a collection of local models from a reproducing kernel Hilbert space via the minimization of a convex functional, for which we prove a representer theorem that ...
In this approach, the problem is cast as the minimization of a convex cost function implementing a trade-off between the fit to the data and a sparsity prior on the number of pieces. ...
A Hilbert space of real-valued functions which possesses a reproducing kernel is called a reproducing kernel Hilbert space (RKHS). ...
doi:10.1109/cdc.2014.7040408
dblp:conf/cdc/LauerB14
fatcat:77x7qzcux5foxdilxgyznw3lqm
An Introduction to Hilbert Module Approach to Multivariable Operator Theory
[article]
2014
arXiv
pre-print
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., T_n} be a set of n commuting bounded linear operators on a Hilbert space H. ...
More developments in the study of Hilbert module approach to operator theory can be found in a companion paper, "Applications of Hilbert Module Approach to Multivariable Operator Theory". ...
Therefore, H is a reproducing kernel Hilbert space with reproducing kernel K(z, w) = ev z • ev * w ∈ B(E). ...
arXiv:1308.6103v3
fatcat:zzvibelf3zddbcgr2os4vqzhva
Maximal margin classification for metric spaces
2005
Journal of computer and system sciences (Print)
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In order to apply the maximum margin method in arbitrary metric spaces, we suggest to embed the metric space into a Banach or Hilbert space and to perform linear classification in this space. ...
We propose several embeddings and recall that an isometric embedding in a Banach space is always possible while an isometric embedding in a Hilbert space is only possible for certain metric spaces. ...
Then for every point x 0 ∈ X there exists a reproducing kernel Hilbert space H k and a map : X → H k given by , y) ,
Proposition 2. ...
doi:10.1016/j.jcss.2004.10.013
fatcat:mlls7h5zybat3mt7272tgxgcpm
When VLAD met Hilbert
[article]
2015
arXiv
pre-print
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In this paper, we address two fundamental limitations of VLAD: its requirement for the local descriptors to have vector form and its restriction to linear classifiers due to its high-dimensionality. ...
Our results also evidence the benefits of our nonlinear VLAD descriptors against the linear ones in Euclidean space using several standard benchmark datasets. ...
In particular, we first introduce a kernelized version of VLAD that relies on mapping of each local descriptor to a Reproducing Kernel Hilbert Space (RKHS). ...
arXiv:1507.08373v1
fatcat:4q5cgbzr5jdfpk2g22ofa36c7u
Page 7103 of Mathematical Reviews Vol. , Issue 2000j
[page]
2000
Mathematical Reviews
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Summary: “In this paper, a _ tensor product space W}[a,b]@W3[c,d] which has a_ reproducing kernel is constructed. ...
46E22 46N40
Zhong, Tan Yi (PRC-HRST; Harbin);
Deng, Zhong Xing (PRC-HRST; Harbin)
On the best Hermite interpolation operator in the reproducing
kernel space W}[a, b]®W7}[c, d}. ...
Reproducing Kernel Hilbert Space Associated with a Unitary Representation of a Groupoid
2021
Complex Analysis and Operator Theory
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AbstractThe aim of the paper is to create a link between the theory of reproducing kernel Hilbert spaces (RKHS) and the notion of a unitary representation of a group or of a groupoid. ...
The kernel constructed from the group(oid) representation is inspired by the kernel defined in terms of the convolution of functions on a locally compact group. ...
If the latter is a Hilbert space, we call H a reproducing kernel Hilbert space (RKHS). ...
doi:10.1007/s11785-021-01137-z
fatcat:tph5wzogxzhzjirreclordu7ye
Subspace Learning in Krein Spaces: Complete Kernel Fisher Discriminant Analysis with Indefinite Kernels
[chapter]
2012
Lecture Notes in Computer Science
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Recently, classifiers such as Support Vector Machines (SVMs) with npd kernels, Indefinite Kernel Fisher Discriminant Analysis (IKFDA) and Indefinite Kernel Quadratic Analysis (IKQA) were proposed. ...
In this paper we propose feature extraction methods using indefinite kernels. In particular, first we propose an Indefinite Kernel Principal Component Analysis (IKPCA). ...
Kernel-based subspace learning algorithms perform an implicit mapping of the input data into a high-dimensional Hilbert space (also referred to as feature space) and use the reproducing properties of pd ...
doi:10.1007/978-3-642-33765-9_35
fatcat:llkq4srexbgk5m3pgcec67xkaq
Hilbert–Schmidt Independence Criterion Subspace Learning on Hybrid Region Covariance Descriptor for Image Classification
2021
Mathematical Problems in Engineering
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This algorithm is a kernel function that embeds SPD matrices into the reproducing kernel Hilbert space and further maps them to a linear space. ...
To address the non-Euclidean properties of SPD manifolds, this study also proposes an algorithm called the Hilbert-Schmidt independence criterion subspace learning (HSIC-SL) for SPD manifolds. ...
, such as a high-dimensional reproducing kernel Hilbert space (RKHS) [24] and another low-dimensional SPD manifold [25] . ...
doi:10.1155/2021/6663710
fatcat:ove6gjdomfd2bcfelqw75uqd3m
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