Seismic trace interpolation can be formulated as an underdetermined least squares inverse problem. In order to force interpolation to follow the directions of seismic events, the weighting function is designed to build the interpolated energy along the desired direction. Usually, such a weighting function is built in the Fourier domain. However, when Fourier spectra are aliased, especially in t...

 Abstract : The meshless local Petrov-Galerkin method with unity as the weighting function has been applied to the solution of the Navier-Stokes and energy equations. The Navier-Stokes equations in terms of the stream function and vorticity formulation together with the energy equation are solved for a driven cavity flow for moderate Reynolds numbers using different point distributions. The L2-...

where V (r|r) = 0, v is concave, and > 1 implies loss aversion. Note that this implies that the value function V (x|r) is concave for gains (xi r) and convex for losses (xi < r). Under CPT, the probability weighting function w : [0, 1] ! [0, 1] transforms objective probabilities into decision weights ⇡. The weighting function w is assumed to satisfy the reflection property, assigning the same w...

In this article we report on a study of how to use the context tree weight-ing (CTW) algorithm for lossless image compression. This algorithm has been shown to perform optimally, in terms of redundancy, for a wide class of data sources. Our study shows that this algorithm can successfully be applied to image compression even in its basic form. We also report on possible modiica-tions of the bas...

In this paper, the selection of H = weighting functions for general practical applications is investigated. It is shown that an H = weighting function for a single-input}single-output (SISO) plant can be obtained by considering a series of connections of elementary low-order plants. For a constrained control e!ort, an explicit weighting function expression is derived for the "rst time. A novel ...

Introduction Prospective navigator-echo controlled scans are a widely used as an alternative to breath-hold acquisitions, generating respiratory motion free images with minimal patient co-operation. Such acquisitions require the setting of a navigator acceptance window (normally 5mm), usually about the end expiratory pause position, resulting in a scan efficiency during steady free-breathing of...

Based on fuzzy set theory, this paper proposes a novel weighting method for spatial adaptive patch-based image denoising algorithm which can be considered as an extension of nonlocal means filtering. First, a fuzzy clustering algorithm for weighting data points is applied to reduce the estimate bias which arises from the unrelated points. The weighting function is determined by optimal fuzzy pa...

We shall assume that each problem function has sufficiently many continuous derivatives for any implicit assumptions that we make to hold. One of the most successful tools for solving problems of the form NLP and SIP is the penalty function. A penalty-function approach replaces the relevant problem by a suitably weighted combination of the objective function f(x) and functions representing viol...

semi-active base isolation system has been proposed mainly to mitigate the base drift of isolated structures while in most cases, its application causes the maximum acceleration of superstructure to be increased. in this paper, designing optimal semi-active base isolation system composed of linear base isolation system with low damping and magneto-rheological (mr) damper has been studied for co...