Research Article

A Radial Basis Function-Based Optimization Algorithm with Regular Simplex Set Geometry in Ellipsoidal Trust-Regions

Figure 3

Illustration of a spherical trust-region and its isovolumetric ellipsoidal counterpart for the two-dimensional Rosenbrock function. The curvature was normalized using the exact Hessian. (a) Spherical trust-region. (b) Ellipsoidal trust-region.
(a)
(b)