2354 search results - page 301 / 471 » Randomness, Stochasticity and Approximations |
168
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ICASSP
2011
IEEE
14 years 10 months ago
2011
IEEE
Consider a robust downlink beamforming optimization problem for secondary multicast transmission in a multiple-input multiple-output (MIMO) spectrum sharing cognitive radio (CR) n...
262
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DCOSS
2011
Springer
14 years 6 months ago
2011
Springer
—Given a set of sensor nodes V where each node wants to broadcast a message to all its neighbors that are within a certain broadcasting range, the local broadcasting problem is t...
209
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ML
2012
ACM
14 years 1 months ago
2012
ACM
Dependency networks approximate a joint probability distribution over multiple random variables as a product of conditional distributions. Relational Dependency Networks (RDNs) are...
229
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STOC
2012
ACM
13 years 8 months ago
2012
ACM
We consider the problem of computing the k-sparse approximation to the discrete Fourier transform of an ndimensional signal. We show: • An O(k log n)-time randomized algorithm f...
163
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ICIP
2000
IEEE
16 years 7 months ago
2000
IEEE
This paper presents a new non-iterative, closed-form approximation to the maximum entropy (M.E.) image restoration method. A fast frequency domain implementation of this closed fo...