2312 search results - page 131 / 463 » The complexity of estimating min-entropy |
173
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TWC
2008
15 years 6 months ago
2008
Abstract--Assuming imperfect channel estimation, we propose an improved detector for orthogonal frequency-division multiplexing (OFDM) systems over a frequency-selective fading cha...
193
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CVPR
2005
IEEE
16 years 8 months ago
2005
IEEE
We propose an approximate Bayesian approach for unsupervised feature selection and density estimation, where the importance of the features for clustering is used as the measure f...
191
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EDBT
2006
ACM
16 years 6 months ago
2006
ACM
In this paper we present a novel approach for estimating the selectivity of XML twig queries. Such a technique is useful for approximate query answering as well as for determining...
165
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ICC
2009
IEEE
16 years 1 months ago
2009
IEEE
Abstract—In this paper, we propose a training-based channel estimation scheme for large non-orthogonal space-time block coded (STBC) MIMO systems. The proposed scheme employs a b...
158
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AVSS
2007
IEEE
16 years 19 days ago
2007
IEEE
This paper addresses the problem of dense estimation of disparities between omnidirectional images, in a spherical framework. Omnidirectional imaging certainly represents importan...