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ICASSP
2009
IEEE
16 years 2 months ago
Quadtree structured restoration algorithms for piecewise polynomial images
Iterative shrinkage of sparse and redundant representations are at the heart of many state of the art denoising and deconvolution algorithms. They assume the signal is well approx...
Adam Scholefield, Pier Luigi Dragotti
ICC
2007
IEEE
139views Communications» more  ICC 2007»
16 years 1 months ago
Radio Resource Allocation Algorithm for Relay-Aided Cellular OFDMA System
— We address the problem of radio resource allocation in the Downlink (DL) of relay–aided cellular system, based on OFDMA transmission technology. There has been little work on...
Megumi Kaneko, Petar Popovski
CAAN
2007
Springer
16 years 1 months ago
Cleaning Random d-Regular Graphs with Brushes Using a Degree-Greedy Algorithm
In the recently introduced model for cleaning a graph with brushes, we use a degree-greedy algorithm to clean a random d-regular graph on n vertices (with dn even). We then use a d...
Margaret-Ellen Messinger, Pawel Pralat, Richard J....
PRDC
2005
IEEE
16 years 24 days ago
Sigma: A Fault-Tolerant Mutual Exclusion Algorithm in Dynamic Distributed Systems Subject to Process Crashes and Memory Losses
This paper introduces the Sigma algorithm that solves fault-tolerant mutual exclusion problem in dynamic systems where the set of processes may be large and change dynamically, pr...
Wei Chen, Shiding Lin, Qiao Lian, Zheng Zhang
SAT
2004
Springer
131views Hardware» more  SAT 2004»
16 years 17 days ago
A Comparative Study of 2QBF Algorithms
2QBF is the problem of evaluating a Quantified Boolean Formula (QBF) with two levels of quantification. Many practical problems in sequential verification can be formulated as i...
Darsh P. Ranjan, Daijue Tang, Sharad Malik