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cs.IT2013★ 24 cited
Sketching Sparse Matrices
Gautam Dasarathy, Parikshit Shah, Badri Narayan Bhaskar +1
This paper considers the problem of recovering an unknown sparse p\times p matrix X from an m\times m matrix Y=AXB^T, where A and B are known m \times p matrices with m << p. The m…
cs.IT2012★ 28 cited
Compressed Sensing off the Grid
Gongguo Tang, Badri Narayan Bhaskar, Parikshit Shah +1
We consider the problem of estimating the frequency components of a mixture of s complex sinusoids from a random subset of n regularly spaced samples. Unlike previous work in compr…