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» On multivariate estimation by thresholding
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ICIP
2002
IEEE
15 years 11 months ago
A comparison between an objective quality measure and the mean annoyance values of watermarked videos
In this paper, a comparison between an objective quality measure and the perceived mean annoyance values of watermarked videos is presented. A psychophysical experiment has been p...
Mylene Christine Queiroz de Farias, Marco Carli, S...
STOC
2010
ACM
195views Algorithms» more  STOC 2010»
15 years 1 months ago
Efficiently Learning Mixtures of Two Gaussians
Given data drawn from a mixture of multivariate Gaussians, a basic problem is to accurately estimate the mixture parameters. We provide a polynomial-time algorithm for this proble...
Adam Tauman Kalai, Ankur Moitra, and Gregory Valia...
ICASSP
2010
IEEE
14 years 10 months ago
On unbiased estimation of sparse vectors corrupted by Gaussian noise
We consider the estimation of a sparse parameter vector from measurements corrupted by white Gaussian noise. Our focus is on unbiased estimation as a setting under which the difï¬...
Alexander Jung, Zvika Ben-Haim, Franz Hlawatsch, Y...
ICC
2008
IEEE
126views Communications» more  ICC 2008»
15 years 4 months ago
A Concept for Data-Aided Carrier Frequency Estimation at Low Signal-To-Noise Ratios
Abstract— In this paper, we consider data-aided carrier frequency estimation for burst mode transmission in low signal-tonoise ratio (SNR) environments. It is well known from lit...
Susanne Godtmann, Niels Hadaschik, Wolfgang Steine...
ICSAP
2010
15 years 1 months ago
The Effect of Subcarrier-Based Channel Estimation on the BER Bound of Turbo Coded OFDM/SDMA System
—In this paper, we study the performance of the channel estimation in a Turbo coded, orthogonal frequency division multiplexing (OFDM) with multiple antennas at the receiver. We ...
Y. Taghinia, Gholamreza Dadashzadeh, Esrafil Jedar...