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171
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
In this paper, we consider a cognitive radio (CR) network in which the unlicensed (secondary) users are allowed to concurrently access the spectrum allocated to the licensed (prim...
179
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CORR
2008
Springer
15 years 6 months ago
2008
Springer
We study the problem of dynamic spectrum sensing and access in cognitive radio systems as a partially observed Markov decision process (POMDP). A group of cognitive users cooperati...
180
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IPM
2008
15 years 6 months ago
2008
The presentation of search results on the web has been dominated by the textual form of document representation. On the other hand, the document's visual aspects such as the ...
210
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CORR
2007
Springer
15 years 6 months ago
2007
Springer
Information integration applications, such as mediators or mashups, that require access to information resources currently rely on users manually discovering and integrating them ...
177
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IVS
2006
15 years 6 months ago
2006
Very early in the object recognition process the human visual system extracts shading information. While shading can enhance the visibility of structures, it can have a negative i...