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» On an Optimization Problem in Sensor Selection*
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NGC
2000
Springer
115views Communications» more  NGC 2000»
15 years 1 months ago
Hierarchical reliable multicast
The use of proxies for local error recovery and congestion control is a scalable technique used to overcome a number of wellknown problems in Reliable Multicast (RM). The idea is ...
Athina Markopoulou, Fouad A. Tobagi
PRIS
2004
14 years 11 months ago
Comparison of Combination Methods using Spectral Clustering Ensembles
We address the problem of the combination of multiple data partitions, that we call a clustering ensemble. We use a recent clustering approach, known as Spectral Clustering, and th...
André Lourenço, Ana L. N. Fred
CORR
2008
Springer
189views Education» more  CORR 2008»
14 years 9 months ago
Algorithms for Dynamic Spectrum Access with Learning for Cognitive Radio
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...
Jayakrishnan Unnikrishnan, Venugopal V. Veeravalli
JSAC
2008
106views more  JSAC 2008»
14 years 9 months ago
Enhanced multiuser random beamforming: dealing with the not so large number of users case
We consider the downlink of a wireless system with an M-antenna base station and K single-antenna users. A limited feedback-based scheduling and precoding scenario is considered th...
Marios Kountouris, David Gesbert, Thomas Sälz...
CORR
2011
Springer
148views Education» more  CORR 2011»
14 years 4 months ago
On Social-Temporal Group Query with Acquaintance Constraint
Three essential criteria are important for activity planning, including: (1) finding a group of attendees familiar with the initiator, (2) ensuring each attendee in the group to ...
De-Nian Yang, Yi-Ling Chen, Wang-Chien Lee, Ming-S...