18306 search results - page 3053 / 3662 » Algorithmics in Exponential Time |
154
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DSN
2009
IEEE
16 years 1 months ago
2009
IEEE
In this paper, we present an approach for detection of spam calls over IP telephony called SPIT in VoIP systems. SPIT detection is different from spam detection in email in that t...
171
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GLOBECOM
2009
IEEE
16 years 1 months ago
2009
IEEE
—In this paper we look at the problem of accurately reconstructing distributed signals through the collection of a small number of samples at a data gathering point. The techniqu...
180
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GLOBECOM
2009
IEEE
16 years 1 months ago
2009
IEEE
Abstract—Delay Tolerant Networks (DTNs) are wireless networks in which at any given time instance, the probability of having a complete path from a source to destination is low d...
168
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IAT
2009
IEEE
16 years 1 months ago
2009
IEEE
Abstract—Social conventions are useful self-sustaining protocols for groups to coordinate behavior without a centralized entity enforcing coordination. We perform an in-depth stu...
163
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ICASSP
2009
IEEE
16 years 1 months ago
2009
IEEE
In recent work, we studied the problem of causally reconstructing time sequences of spatially sparse signals, with unknown and slow time-varying sparsity patterns, from a limited ...