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111
Voted
SSS
2009
Springer
15 years 10 months ago
Stability of Distributed Algorithms in the Face of Incessant Faults
Abstract. For large distributed systems built from inexpensive components, one expects to see incessant failures. This paper proposes two models for such faults and analyzes two we...
Robert E. Lee DeVille, Sayan Mitra
109
Voted
ICASSP
2008
IEEE
15 years 10 months ago
A factor graph approach to joint iterative data detection and channel estimation in pilot-assisted IDMA transmissions
We consider a pilot-assisted interleave-division multiple access (IDMA) system transmitting over block-fading channels. We describe this system in terms of a factor graph and use ...
Clemens Novak, Gerald Matz, Franz Hlawatsch
97
Voted
ICASSP
2008
IEEE
15 years 10 months ago
Low-rank covariance matrix tapering for robust adaptive beamforming
Covariance matrix tapering (CMT) is a popular approach to improve the robustness of adaptive beamformers against moving or wideband interferers. In this paper, we develop a comput...
Michael Rübsamen, Christian Gerlach, Alex B. ...
110
Voted
ICPR
2008
IEEE
15 years 10 months ago
The polar distance transform by fast-marching
Image analysis tools that process the image using polar coordinates are needed to avoid the interpolation from polar to cartesian coordinates. We present a tool for analysing and ...
Robin Strand, Kristin Norell
ICA
2007
Springer
15 years 9 months ago
Dictionary Learning for L1-Exact Sparse Coding
We have derived a new algorithm for dictionary learning for sparse coding in the ℓ1 exact sparse framework. The algorithm does not rely on an approximation residual to operate, b...
Mark D. Plumbley