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GLOBECOM
2009
IEEE
16 years 1 months ago
How Much Training Is Needed for Iterative Multiuser Detection and Decoding?
Abstract—This paper studies large randomly spread directsequence code-division multiple-access system operating over a block fading multipath channel. Channel knowledge is obtain...
Mikko Vehkaperä, Keigo Takeuchi, Ralf R. M&uu...
NN
2002
Springer
15 years 6 months ago
Opponent interactions between serotonin and dopamine
Anatomical and pharmacological evidence suggests that the dorsal raphe serotonin system and the ventral tegmental and substantia nigra dopamine system may act as mutual opponents....
Nathaniel D. Daw, Sham Kakade, Peter Dayan
INTERSPEECH
2010
15 years 1 months ago
Active appearance models for photorealistic visual speech synthesis
The perceived quality of a synthetic visual speech signal greatly depends on the smoothness of the presented visual articulators. This paper explains how concatenative visual spee...
Wesley Mattheyses, Lukas Latacz, Werner Verhelst
ICDE
2003
IEEE
107views Database» more  ICDE 2003»
16 years 8 months ago
Managing Data Mappings in the Hyperion Project
We consider the problem of mapping data in peerto-peer systems. Such systems rely on simple value searches to locate data of interest. However, different peers may use different v...
Anastasios Kementsietsidis, Marcelo Arenas, Ren&ea...
WSDM
2010
ACM
160views Data Mining» more  WSDM 2010»
16 years 4 months ago
Tagging Human Knowledge
A fundamental premise of tagging systems is that regular users can organize large collections for browsing and other tasks using uncontrolled vocabularies. Until now, that premise...
Paul Heymann, Andreas Paepcke, Hector Garcia-Molin...