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» On the Computation of Correctly-Rounded Sums
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CMPB
2010
96views more  CMPB 2010»
15 years 4 months ago
Towards real-time radiation therapy: GPU accelerated superposition/convolution
We demonstrate the use of highly parallel graphics processing units (GPUs) to accelerate the Superposition/Convolution (S/C) algorithm to interactive rates while reducing the numbe...
Robert Jacques, Russell Taylor, John Wong, Todd Mc...
CORR
2010
Springer
66views Education» more  CORR 2010»
15 years 4 months ago
Efficient Dealiased Convolutions without Padding
Algorithms are developed for calculating dealiased linear convolution sums without the expense of conventional zero-padding or phase-shift techniques. For one-dimensional in-place ...
John C. Bowman, Malcolm Roberts
CORR
2010
Springer
167views Education» more  CORR 2010»
15 years 4 months ago
Network Flow Algorithms for Structured Sparsity
We consider a class of learning problems that involve a structured sparsityinducing norm defined as the sum of -norms over groups of variables. Whereas a lot of effort has been pu...
Julien Mairal, Rodolphe Jenatton, Guillaume Obozin...
CORR
2008
Springer
72views Education» more  CORR 2008»
15 years 4 months ago
Channels that Heat Up
This paper considers an additive noise channel where the time-k noise variance is a weighted sum of the squared magnitudes of the previous channel inputs plus a constant. This chan...
Tobias Koch, Amos Lapidoth, Paul-Peter Sotiriadis
CORR
2008
Springer
126views Education» more  CORR 2008»
15 years 4 months ago
One shot schemes for decentralized quickest change detection
This work considers the problem of quickest detection with N distributed sensors that receive sequential observations either in discrete or in continuous time from the environment....
Olympia Hadjiliadis, Hongzhong Zhang, H. Vincent P...