Fast and Efficient Kronecker Multiplication
Sin licencia
Computing the matrix-vector product
y = (Q1 kron Q2 kron ... kron Qm) * x
can be done without ever forming the big matrix of Kronecker products. This m-file implements an algorithm for this task from page 394 of Fernandes, et al. 1998, JACM 45(3): 381--414 (doi:10.1145/278298.278303). The implementation works where X is a matrix too.
Don't be scared off by the for-loops, this code works well with the Matlab JIT compiler and works for vectors with over 50 million entries.
Citar como
David Gleich (2024). Fast and Efficient Kronecker Multiplication (https://www.mathworks.com/matlabcentral/fileexchange/23606-fast-and-efficient-kronecker-multiplication), MATLAB Central File Exchange. Recuperado .
Compatibilidad con la versión de MATLAB
Compatibilidad con las plataformas
Windows macOS LinuxCategorías
Etiquetas
Agradecimientos
Inspiración para: Fast Kronecker matrix multiplication, Matrix times array
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!Descubra Live Editor
Cree scripts con código, salida y texto formateado en un documento ejecutable.