搜索结果: 1-7 共查到“信息科学与系统科学 sparse”相关记录7条 . 查询时间(0.082 秒)
A sparse transmission disequilibrium test for haplotypes based on Bradley-Terry graphs
case-parent trio family-based study linkage
2015/8/21
Linkage and association analysis based on haplotype transmission disequilibrium can be more informative than single marker analysis. Several works have been proposed
in recent years to extend the tra...
Recovery of Sparse 1-D Signals from the Magnitudes of their Fourier Transform
Recovery of Sparse 1-D Signals the Magnitudes their Fourier Transform Information Theory
2012/6/27
The problem of signal recovery from the autocorrelation, or equivalently, the magnitudes of the Fourier transform, is of paramount importance in various fields of engineering. In this work, for one-di...
Multi-Sparse Signal Recovery for Compressive Sensing
Multi-Sparse Signal Recovery Compressive Sensing Information Theory
2012/6/19
Signal recovery is one of the key techniques of Compressive sensing (CS). It reconstructs the original signal from the linear sub-Nyquist measurements. Classical methods exploit the sparsity in one do...
Gradually Atom Pruning for Sparse Reconstruction and Extension to Correlated Sparsity
Smoothed l0 l1 minimization compressed sensing reconstruction algorithm correlated sparsity
2012/4/23
We propose a new algorithm for recovery of sparse signals from their compressively sensed samples. The proposed algorithm benefits from the strategy of gradual movement to estimate the positions of no...
Sparse approximation property and stable recovery of sparse signals from noisy measurements
Sparse approximation property noisy measurements Information Theory
2011/9/21
Abstract: In this paper, we introduce a sparse approximation property of order $s$ for a measurement matrix ${\bf A}$: $$\|{\bf x}_s\|_2\le D \|{\bf A}{\bf x}\|_2+ \beta \frac{\sigma_s({\bf x})}{\sqrt...
Measurement Design for Detecting Sparse Signals
Sparse Signals Information Theory Measurement Design
2011/8/31
Abstract: We consider the problem of testing for the presence (or detection) of an unknown sparse signal in additive white noise. Given a fixed measurement budget, much smaller than the dimension of t...
Stable Restoration and Separation of Approximately Sparse Signals
Sparse signal recovery signal restoration signal separation deterministic recovery guarantee,
2011/8/23
Abstract: This paper develops new theory and algorithms to recover signals that are approximately sparse in some general (i.e., basis, frame, over-complete, or in-complete) dictionary but corrupted by...