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» On multivariate estimation by thresholding
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ICIP
2002
IEEE
14 years 10 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»
14 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
13 years 9 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»
14 years 3 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
14 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...