no code implementations • 13 Apr 2018 • Jianwei Xiao, Ming Gu, Julien Langou
In contrast, randomized QRCP (RQRCP) algorithms have proven themselves empirically to be highly competitive with high-performance implementations of QR in processing time, on uniprocessor and shared memory machines, and as reliable as QRCP in pivot quality.
Numerical Analysis
no code implementations • 6 Mar 2018 • Yuehua Feng, Jianwei Xiao, Ming Gu
We present Flip-Flop Spectrum-Revealing QR (Flip-Flop SRQR) factorization, a significantly faster and more reliable variant of the QLP factorization of Stewart, for low-rank matrix approximations.
Numerical Analysis Numerical Analysis 15A18, 15A23, 65F99
