2 papers
math.NA2023
Half-Precision Kronecker Product SVD Preconditioner for Structured Inverse Problems
Yizhou Chen, Xiang Ji, James Nagy
In this paper we investigate the use of half-precision Kronecker product singular value decomposition (SVD) approximations as preconditioners for large-scale Tikhonov regularized l…
math.NA2022
Iterative Methods at Lower Precision
Yizhou Chen, Xiaoyun Gong, Xiang Ji
Since numbers in the computer are represented with a fixed number of bits, loss of accuracy during calculation is unavoidable. At high precision where more bits (e.g. 64) are alloc…