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ICASSP
2008
IEEE
16 years 1 months ago
Semantic composition process in a speech understanding system
A knowledge representation formalism for SLU is introduced. It is used for incremental and partially automated annotation of the MEDIA corpus in terms of semantic structures. An a...
Frédéric Duvert, Marie-Jean Meurs, C...
ICC
2007
IEEE
105views Communications» more  ICC 2007»
16 years 29 days ago
Intersymbol Interference Due to the Atmospheric Turbulence for Free-Space Optical Communication System
—Weak atmospheric turbulence causes pulse broadening of an optical signal. In this article, we drive the pulse broadening as a function of turbulence strength by temporal moments...
Mostofa K. Howlader, Jinho Jung
GLOBECOM
2006
IEEE
16 years 21 days ago
An Adaptive-Scaling Tone Reservation Algorithm for PAR Reduction in OFDM Systems
— Existing tone-reservation algorithms (such as the controlled clipper algorithm) for OFDM require a number of iterations to ensure the reduction of Peak-to-Average Power Ratio (...
Luqing Wang, Chintha Tellambura
142
Voted
ICMCS
2006
IEEE
125views Multimedia» more  ICMCS 2006»
16 years 21 days ago
Online Doubletalk Detector Calibration for Acoustic Echo Cancellation in Videoconferencing Systems
This paper addresses the problem of doubletalk detector calibration for acoustic echo cancellers in hands-free environments such as videoconferencing. A statistical model of a rec...
James D. Gordy, Rafik A. Goubran
VTC
2006
IEEE
133views Communications» more  VTC 2006»
16 years 20 days ago
Relay Communication with Delay Diversity for Future Communication Systems
— In this paper we consider relay communication as a way of increasing the diversity gain in fading wireless environments. The idea is to combine relay communication with delay d...
S. Ben Slimane, Afif Osseiran