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CHI
2008
ACM
15 years 10 months ago
2008
ACM
In this paper, we discuss children's and teachers' experiences in a small rural town in Uruguay where every child in elementary school has received a laptop from the OLP...
CHI
2004
ACM
15 years 10 months ago
2004
ACM
This paper sums up lessons learned from a sequence of cooperative design workshops where end users were enabled to design mobile systems through scenario building, role playing, a...
GLOBECOM
2009
IEEE
15 years 4 months ago
2009
IEEE
— In this paper, we provide a lower and upper bound for the number of degrees of freedom (DOF) of B multipleinput single-output (MISO) broadcast channels (BC) where each base sta...
ICASSP
2009
IEEE
15 years 4 months ago
2009
IEEE
Independent component analysis (ICA) is not only popular for blind source separation but also for unsupervised learning when the observations can be decomposed into some independe...
CDC
2008
IEEE
15 years 4 months ago
2008
IEEE
—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 cooper...