Results 11 to 20 of about 39,311 (111)

A new class of wavelet networks for nonlinear system identification [PDF]

open access: yes, 2004
A new class of wavelet networks (WNs) is proposed for nonlinear system identification. In the new networks, the model structure for a high-dimensional system is chosen to be a superimposition of a number of functions with fewer variables.
Billings, S.A., Wei, H.L.
core   +2 more sources

On a class of self-similar processes with stationary increments in higher order Wiener chaoses

open access: yes, 2012
We study a class of self-similar processes with stationary increments belonging to higher order Wiener chaoses which are similar to Hermite processes. We obtain an almost sure wavelet-like expansion of these processes.
Arras, Benjamin
core   +2 more sources

ROI coding of volumetric medical images with application to visualisation [PDF]

open access: yes, 2003
This paper presents region of interest (ROI) coding of volumetric medical images with the region itself being three dimensional. An extension to 3D-SPIHT which allows 3D ROI coding is proposed.
Agrafiotis, D, Bull, DR, Canagarajah, CN
core   +2 more sources

On the Analytic Wavelet Transform

open access: yes, 2010
An exact and general expression for the analytic wavelet transform of a real-valued signal is constructed, resolving the time-dependent effects of non-negligible amplitude and frequency modulation.
Lilly, Jonathan M., Olhede, Sofia C.
core   +1 more source

Scalable wavelet-based coding of irregular meshes with interactive region-of-interest support [PDF]

open access: yes, 2019
This paper proposes a novel functionality in wavelet-based irregular mesh coding, which is interactive region-of-interest (ROI) support. The proposed approach enables the user to define the arbitrary ROIs at the decoder side and to prioritize and decode ...
Khalil, Jonas El Sayeh   +2 more
core   +1 more source

Refinement trajectory and determination of eigenstates by a wavelet based adaptive method [PDF]

open access: yes, 2006
The detail structure of the wave function is analyzed at various refinement levels using the methods of wavelet analysis. The eigenvalue problem of a model system is solved in granular Hilbert spaces, and the trajectory of the eigenstates is traced in ...
Nagy, Sz., Pipek, J.
core   +2 more sources

The solution of multi-scale partial differential equations using wavelets

open access: yes, 1998
Wavelets are a powerful new mathematical tool which offers the possibility to treat in a natural way quantities characterized by several length scales.
Beylkin   +10 more
core   +1 more source

Adaptive transient solution of nonuniform multiconductor transmission lines using wavelets [PDF]

open access: yes, 2000
—This paper presents a highly adaptive algorithm for the transient simulation of nonuniform interconnects loaded with arbitrary nonlinear and dynamic terminations.
Grivet-Talocia, S.
core   +2 more sources

Wavelets and Lattice Field Theory

open access: yes, 2017
When continuous fields are expanded in a wavelet basis, a D-dimensional continuum action becomes a (D+1)-dimensional lattice action on the naively discretized Poincare-patch coordinates of an Euclidean AdS(D+1).
Neuberger, Herbert
core   +2 more sources

Simulation of Field Theories in Wavelet Representation [PDF]

open access: yes, 1994
The field is expanded in a wavelet series and the wavelet coefficients are varied in a simulation of the 2D $\phi^4$ field theory. The drastically reduced autocorrelations result in a substantial decrease of computing requirements, compared to those in ...
Best   +10 more
core   +2 more sources

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