1427 search results - page 281 / 286 » Optimization by Simulation Metamodelling Methods |
SIGIR
2009
ACM
14 years 2 months ago
2009
ACM
Pseudo relevance feedback (PRF), which has been widely applied in IR, aims to derive a distribution from the top n pseudo relevant documents D. However, these documents are often ...
ICC
2008
IEEE
14 years 2 months ago
2008
IEEE
— In this paper, we present a new beamforming scheme for a downlink of multiuser multiple-input multipleoutput (MIMO) communication systems. Recently, a blockdiagonalization (BD)...
ICDCS
2007
IEEE
14 years 2 months ago
2007
IEEE
Application-layer overlay networks have recently emerged as a promising solution for live media multicast on the Internet. A tree is probably the most natural structure for a mult...
INFOCOM
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract— This research focuses on RFID-based 3-D positioning schemes, aiming to locate an object in a 3-dimensional space, with reference to a predetermined arbitrary coordinate...
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
—In this paper, a lattice-reduction-aided (LRA) With such an approximation, the complexity of VP is greatly minimum mean square error (MMSE) vector precoding (VP) is reduced. pro...