1176 search results - page 62 / 236 » Sparse reward processes |
143
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ICASSP
2010
IEEE
15 years 4 months ago
2010
IEEE
—We consider a cognitive radio network with distributed multiple secondary users, where each user independently searches for spectrum opportunities in multiple channels without e...
121
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ICIP
2008
IEEE
16 years 5 months ago
2008
IEEE
Multiuser collusion is an effective attack against traitor-tracing multimedia fingerprinting, where a group of attackers collectively mount attacks to reduce their risk of being d...
137
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ICIP
2004
IEEE
16 years 5 months ago
2004
IEEE
We present an approach to estimate the poses of human heads in natural scenes. The essential features for estimating the head pose are the positions of the prominent facial featur...
117
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ICASSP
2008
IEEE
15 years 10 months ago
2008
IEEE
We pose the problem of tracing traitors, who have colluded to circumvent a multimedia fingerprinting system, as a sparse underdetermined linear problem. We propose a range of det...
120
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ICIP
2007
IEEE
15 years 10 months ago
2007
IEEE
Practical sparse approximation algorithms (particularly greedy algorithms) suffer two significant drawbacks: they are difficult to implement in hardware, and they are inefficie...