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MOC
2000
82views more  MOC 2000»
13 years 8 months ago
Three new factors of Fermat numbers
We report the discovery of a new factor for each of the Fermat numbers F13, F15, F16. These new factors have 27, 33 and 27 decimal digits respectively. Each factor was found by the...
Richard P. Brent, Richard E. Crandall, Karl Dilche...
MOC
1998
107views more  MOC 1998»
13 years 8 months ago
A new parallel chasing algorithm for transforming arrowhead matrices to tridiagonal form
Rutishauser, Gragg and Harrod and finally H.Y. Zha used the same class of chasing algorithms for transforming arrowhead matrices to tridiagonal form. Using a graphical theoretical...
Suely Oliveira
TOC
2010
155views Management» more  TOC 2010»
13 years 3 months ago
A New Quantum Lower Bound Method, with an Application to a Strong Direct Product Theorem for Quantum Search
Abstract: We present a new method for proving lower bounds on quantum query algorithms. The new method is an extension of the adversary method, by analyzing the eigenspace structur...
Andris Ambainis
ICASSP
2011
IEEE
13 years 9 days ago
New results on adaptive computational resource allocation in soft MIMO detection
The fundamental problem of our interest is soft MIMO detection for the case of block fading, i.e., when the transmitted codeword spans over several independent channel realization...
Mirsad Cirkic, Daniel Persson, Erik G. Larsson
ICIP
2005
IEEE
14 years 10 months ago
New higher-order active contour energies for network extraction
Using the framework of higher-order active contours, we present a new quadratic continuation energy for the extraction of line networks (e.g. road, hydrographic, vascular) in the ...
Marie Rochery, Ian H. Jermyn, Josiane Zerubia