Results 31 to 40 of about 39,311 (111)
On asymptotically optimal wavelet estimation of trend functions under long-range dependence
, 2012 We consider data-adaptive wavelet estimation of a trend function in a time series model with strongly dependent Gaussian residuals. Asymptotic expressions for the optimal mean integrated squared error and corresponding optimal smoothing and resolution ...
Beran, Jan, Shumeyko, Yevgen
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An Improved Split-Step Wavelet Transform Method for Anomalous Radio Wave Propagation Modelling [PDF]
, 2014 Anomalous tropospheric propagation caused by ducting phenomenon is a major problem in wireless communication. Thus, it is important to study the behavior of radio wave propagation in tropospheric ducts.
Iqbal, A., Jeoti, V.
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Wavelets: mathematics and applications
, 2004 The notion of wavelets is defined. It is briefly described {\it what} are wavelets, {\it how} to use them, {\it when} we do need them, {\it why} they are preferred and {\it where} they have been applied.
A. Grossman +25 more
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Nonparametric Transient Classification using Adaptive Wavelets
, 2015 Classifying transients based on multi band light curves is a challenging but crucial problem in the era of GAIA and LSST since the sheer volume of transients will make spectroscopic classification unfeasible.
Bassett, Bruce A. +3 more
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On the Co-movement of Crude, Gold Prices and Stock Index in Indian Market [PDF]
, 1998 This non-linear relationship in the joint time-frequency domain has been studied for the Indian National Stock Exchange (NSE) with the international Gold price and WTI Crude Price being converted from Dollar to Indian National Rupee based on that week's ...
Sen, Abhibasu +1 more
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Generalized Morse Wavelets as a Superfamily of Analytic Wavelets
, 2012 The generalized Morse wavelets are shown to constitute a superfamily that essentially encompasses all other commonly used analytic wavelets, subsuming eight apparently distinct types of analysis filters into a single common form.
Lilly, Jonathan M., Olhede, Sofia C.
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Primordial Power Spectrum Reconstruction
, 2006 In order to reconstruct the initial conditions of the universe it is important to devise a method that can efficiently constrain the shape of the power spectrum of primordial matter density fluctuations in a model-independent way from data. In an earlier
Barger V Lee H S Marfatia D +13 more
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Besov regularity for operator equations on patchwise smooth manifolds [PDF]
, 2014 We study regularity properties of solutions to operator equations on patchwise smooth manifolds $\partial\Omega$ such as, e.g., boundaries of polyhedral domains $\Omega \subset \mathbb{R}^3$. Using suitable biorthogonal wavelet bases $\Psi$, we introduce
Dahlke, Stephan, Weimar, Markus
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Valuation of boundary-linked assets [PDF]
, 2004 This article studies the valuation of boundary-linked assets and their derivatives in continuous-time markets. Valuing boundary-linked assets requires the solution of a stochastic differential equation with boundary conditions, which, often, is not ...
Esteban-Bravo, Mercedes +1 more
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Parametric PDEs: Sparse or Low-Rank Approximations?
, 2016 We consider adaptive approximations of the parameter-to-solution map for elliptic operator equations depending on a large or infinite number of parameters, comparing approximation strategies of different degrees of nonlinearity: sparse polynomial ...
Bachmayr, Markus +2 more
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