Gradient features were computed by using three gradient operators: Sobel filter, Kirsch filter, and a numerical gradient.
In this paper, the SOS is improved and extended by using three mutation-based local search operators to reconstruct its population, improve its exploration and exploitation capability, and accelerate the convergence speed.
Five landslide hazard zonation maps with each comprising five relative landslide hazard zones namely; very low, low, moderate, high and very high hazard zones were prepared by using five fuzzy gamma operators.
The constitutive formulations are now presented in an elegant manner by using two orientation-dependent tensorial operators; (ii) the friction criterion is formulated in terms of the local stress applied onto microcracks.
This anisotropic diffusion rule can discretely be implemented by using four nearest-neighbors and the Laplacian operator [17]: I t + 1 ( x, y ) = I t ( x, y ) + 1 4 ∑ i = 1 4 c t i ( x, y ) ⋅ ∇ I t i ( x, y ) (5).
Motivated by the work [17, 21], we will discuss the existence and uniqueness of monotone positive solutions for problem (1.1) by using two fixed point theorems for mixed monotone operators with perturbation.
Note that all mutants share the same set of users (U), roles (R), permissions (Pr) and inputs (I) of the original policy P. The set ( mathcal {R}^{P}_{fault}) of faulty policies is generated by making changes using two kinds of operators: mutation operators and element modification operators.
The boundary of the object enclosed by the ROI was found using two morphological operators; namely erosion and dilation.
Testing was performed in duplicate by two operators, using two different reagent lots and two cobas z 480 analyzers over 4 days.
All measurements were calculated using three identical Achilles Express devices by the same operators using the same ultrasonometers.
