3 papers
math.NA2026
Probabilistic Analysis of Least Squares, Orthogonal Projection, and QR Factorization Algorithms Subject to Gaussian Noise
Ali Lotfi, Julien Langou, Mohammad Meysami
We consider the effect of Gaussian perturbations on least-squares residuals, orthogonal projections, and QR-type algorithms. The problem that motivated our investigations is as fol…
cs.ET2025
2024 NSF CSSI-Cybertraining-SCIPE PI Meeting August 12 to 13, 2024, Charlotte, NC
Abani Patra, Mary Thomas, Elias Bou-Harb +31
The second annual NSF, OAC CSSI, CyberTraining and related programs PI meeting was held August 12 to 13 in Charlotte, NC, with participation from PIs or representatives of all majo…
cs.PF2024
Communication efficient application of sequences of planar rotations to a matrix
Thijs Steel, Julien Langou
We present an efficient algorithm for the application of sequences of planar rotations to a matrix. Applying such sequences efficiently is important in many numerical linear algebr…