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LSRN: A PARALLEL ITERATIVE SOLVER FOR STRONGLY OVER- OR UNDERDETERMINED SYSTEMS
We describe a parallel iterative least squares solver named LSRN that is based on random normal projection. LSRN computes the min-length solution to min(x∈ℝ(n)) ‖Ax − b‖(2), where A ∈ ℝ(m × n) with m ≫ n or m ≪ n, and where A may be rank-deficient. Tikhonov regularization may also be included. Since...
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| Publicado no: | SIAM J Sci Comput |
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| Main Authors: | , , |
| Formato: | Artigo |
| Idioma: | Inglês |
| Publicado em: |
2014
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| Assuntos: | |
| Acesso em linha: | https://ncbi.nlm.nih.gov/pmc/articles/PMC4238893/ https://ncbi.nlm.nih.gov/pubmed/25419094 https://ncbi.nlm.nih.govhttp://dx.doi.org/10.1137/120866580 |
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