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High-Frequency Tail Index Estimation by Nearly Tight Frames
High-Frequency Tail Index Estimation Nearly Tight Frames
2013/4/27
This work develops the asymptotic properties (weak consistency and Gaussianity), in the high-frequency limit, of approximate maximum likelihood estimators for the spectral parameters of Gaussian and i...
Compressive Sensing Using Low Density Frames
Low density frames compressive sensing sumproduct algorithm expectation maximization Gaussian scalemixtures
2010/3/19
We consider the compressive sensing of a sparse or
compressible signal x 2 RM. We explicitly construct a class of
measurement matrices, referred to as the low density frames,
and develop decoding a...