Results 21 to 30 of about 320,618 (297)
We describe an alternative way of constructing interpolating B-spline curves, surfaces or volumes in Fourier space which can be used for visualization. In our approach the interpolation problem is considered from a signal processing point of view and is reduced to finding an inverse B-spline filter sequence.
Gross, Markus, Kleiner, David
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Just Another Gibbs Additive Modeler: Interfacing JAGS and mgcv
The BUGS language offers a very flexible way of specifying complex statistical models for the purposes of Gibbs sampling, while its JAGS variant offers very convenient R integration via the rjags package.
Simon N. Wood
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Variable degree polynomial splines are Chebyshev splines [PDF]
Variable degree polynomial (VDP) splines have recently proved themselves as a valuable tool in obtaining shape preserving approximations. However, some usual properties which one would expect of a spline space in order to be useful in geometric modeling, do not follow easily from their definition.
Bosner, Tina, Rogina, Mladen
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Boosting Additive Models using Component-wise P-Splines [PDF]
We consider an efficient approximation of Bühlmann & Yu’s L2Boosting algorithm with component-wise smoothing splines. Smoothing spline base-learners are replaced by P-spline base-learners which yield similar prediction errors but are more advantageous ...
Hothorn, Torsten, Schmid, Matthias
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The monitoring and prediction of biodiversity and environmental changes is constrained by the availability of accurate and spatially contiguous climatic variables at fine temporal and spatial grains.
Benoit Parmentier +8 more
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BMICA-independent component analysis based on B-spline mutual information estimator [PDF]
The information theoretic concept of mutual information provides a general framework to evaluate dependencies between variables. Its estimation however using B-Spline has not been used before in creating an approach for Independent Component Analysis. In
Li, Yan, Walters-Williams, Janett
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Combined approximation algorithms for interactive design of road routes in CAD
Objectives. The aim of the work is to create algorithms for approximating a sequence of points on a plane by arcs of clothoids and circles. Such a problem typically arises in the design of railroad and highway routes.
D. A. Karpov, V. I. Struchenkov
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Cubic spline prewavelets on the four-directional mesh [PDF]
In this paper, we design differentiable, two dimensional, piecewise polynomial cubic prewavelets of particularly small compact support. They are given in closed form, and provide stable, orthogonal decompositions of $L^2(\RR^2)$.
Buhmann, M. D. +2 more
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Polynomial spline-approximation of Clarke's model [PDF]
We investigate polynomial spline approximation of stationary random processes on a uniform grid applied to Clarke's model of time variations of path amplitudes in multipath fading channels with Doppler scattering. The integral mean square error (MSE) for
Adlard, J F, Tozer, T C, Zakharov, Y V
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New approach for solution of volterra integral equations using spline quasi-interpolant [PDF]
In this paper, we present quadratic rule for approximate solution of integrals using spline quasi-interpolant. The methodis applied for solving the linear Volterra integral equations. Also the convergence analysis of the method is given.
Maryam Derakhshan Khanghah +1 more
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