From: Large scale random fields generation using localized Karhunen–Loève expansion
Operation | Standard KLE | Conditioned KLE |
---|---|---|
Kernel modal decomposition | \(\mathcal {O}((n_sM)^3d)\) | \(\mathcal {O}(n_s^3d)\) |
Conditioning matrices computation | – | \(\mathcal {O}(\bar{N}^3d)\) |
Random field sampling | \(\mathcal {O}(n_s^dM^{d+1}\bar{N})\) | \(\mathcal {O}((n_sM)^d\bar{N})\) |