10493 search results - page 1422 / 2099 » Dynamic Word Problems |
164
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SIAMSC
2008
15 years 6 months ago
2008
In infrared astronomy, an observed image from a chop and nod process can be considered as the result of passing the original image through a highpass filter. Here we propose a rest...
185
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SIAMSC
2008
15 years 6 months ago
2008
In this study, nonnegative matrix factorization is recast as the problem of approximating a polytope on the probability simplex by another polytope with fewer facets. Working on th...
157
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SIAMSC
2008
15 years 6 months ago
2008
In this paper we consider a finite element discretization of the Oldroyd-B model of viscoelastic flows. The method uses standard continuous polynomial finite element spaces for vel...
158
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SIAMSC
2008
15 years 6 months ago
2008
A novel approach to the X-ray tomography problem with sparse projection data is proposed. Non-negativity of the X-ray attenuation coefficient is enforced by modelling it as max{(x)...
203
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SIAMSC
2008
15 years 6 months ago
2008
A model-constrained adaptive sampling methodology is proposed for reduction of large-scale systems with high-dimensional parametric input spaces. Our model reduction method uses a ...