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PR
2010
129views more  PR 2010»
14 years 11 months ago
Parsimonious reduction of Gaussian mixture models with a variational-Bayes approach
Aggregating statistical representations of classes is an important task for current trends in scaling up learning and recognition, or for addressing them in distributed infrastruc...
Pierrick Bruneau, Marc Gelgon, Fabien Picarougne
GLOBECOM
2008
IEEE
15 years 1 months ago
An Efficient Tree Search for Reduced Complexity Sphere Decoding
The complexity of sphere decoding (SD) has been widely studied due to the importance of this algorithm in obtaining the optimal Maximum Likelihood (ML) performance with lower compl...
Luay Azzam, Ender Ayanoglu
GLOBECOM
2007
IEEE
15 years 7 months ago
Time-Varying Channel Complex Gains Estimation and ICI Suppression in OFDM Systems
—In this paper, we present an iterative algorithm for channel complex gains estimation with inter-sub-carrierinterference (ICI) reduction in orthogonal-frequency-divisionmultiple...
Hussein Hijazi, Laurent Ros
JSAC
1998
81views more  JSAC 1998»
15 years 29 days ago
Early Detection and Trellis Splicing: Reduced-Complexity Iterative Decoding
Abstract—The excellent bit error rate performance of new iterative decoding algorithms (e.g., turbodecoding) is achieved at the expense of a computationally burdensome decoding p...
Brendan J. Frey, Frank R. Kschischang
LPNMR
2009
Springer
15 years 7 months ago
Complexity of the Stable Model Semantics for Queries on Incomplete Databases
Abstract. We study the complexity of consistency checking and query answering on incomplete databases for languages ranging from non-recursive Datalog to disjunctive Datalog with n...
Jos de Bruijn, Stijn Heymans