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ICASSP
2011
IEEE
14 years 3 months ago
Distributed multiaccess in hierarchical cognitive radio networks
The problem of distributed multiuser medium access of a hierarchical cognitive radio network with multiple primary and secondary users is considered. Each primary user has a licen...
Shiyao Chen, Lang Tong
ICASSP
2011
IEEE
14 years 3 months ago
Improved thresholds for rank minimization
—Nuclear norm minimization (NNM) has recently gained attention for its use in rank minimization problems. In this paper, we define weak, sectional and strong recovery for NNM to...
Samet Oymak, M. Amin Khajehnejad, Babak Hassibi
SODA
2012
ACM
200views Algorithms» more  SODA 2012»
13 years 1 months ago
The shifting sands algorithm
We resolve the problem of small-space approximate selection in random-order streams. Specifically, we present an algorithm that reads the n elements of a set in random order and ...
Andrew McGregor, Paul Valiant
CVPR
2009
IEEE
1372views Computer Vision» more  CVPR 2009»
16 years 6 months ago
Blind motion deblurring from a single image using sparse approximation
Restoring a clear image from a single motion-blurred image due to camera shake has long been a challenging problem in digital imaging. Existing blind deblurring techniques eithe...
Jian-Feng Cai (National University of Singapore), ...
CGF
2008
80views more  CGF 2008»
14 years 11 months ago
A Semi-Lagrangian CIP Fluid Solver without Dimensional Splitting
In this paper, we propose a new constrained interpolation profile (CIP) method that is stable and accurate but requires less amount of computation compared to existing CIP-based s...
Doyub Kim, Oh-Young Song, Hyeong-Seok Ko