3708 search results - page 392 / 742 » Approximating Betweenness Centrality |
176
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SIAMMAX
2010
15 years 1 months ago
2010
The mth Chebyshev polynomial of a square matrix A is the monic polynomial that minimizes the matrix 2-norm of p(A) over all monic polynomials p(z) of degree m. This polynomial is u...
192
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TMI
2010
15 years 1 months ago
2010
The greatest impediment to practical adoption of iterative methods for X-ray CT is the computation burden of cone-beam forward and back-projectors. Moreover, forward and back-proje...
219
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TSP
2010
15 years 1 months ago
2010
Sparse graphical models have proven to be a flexible class of multivariate probability models for approximating high-dimensional distributions. In this paper, we propose techniques...
142
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TSP
2010
15 years 1 months ago
2010
This paper presents a method for signal extraction based on conditional second-order moments of the output of the extraction filter. The estimator of the filter is derived from an ...
184
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SIAMNUM
2011
15 years 1 months ago
2011
We present a method to approximate (in any space dimension) diffusion equations with schemes having a specific structure; this structure ensures that the discrete local maximum a...