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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 5 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
15 years 2 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»
15 years 1 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»
15 years 1 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 8 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...