Work

Matrix sparsification and the sparse null space problem

Year: 2010
Type: preprint
Abstract: We revisit the matrix problems sparse null space and matrix sparsification, and show that they are equivalent. We then proceed to seek algorithms for these problems: We prove the hardness of approximation of these problems, and also give a powerful tool to extend algorithms and heuristics for sparse approximation theory to these problems.
Language: English
Open Access status: green
OpenAlex ID: W2952047957
Cites: 29
Cited by: 4
Related to: 20