Please reference these two paper if you are using SMARS in your work.

Brigham JC, Aquino W. Surrogate-model accelerated random search algorithm for global optimization with
applications to inverse material identification. Computer Methods in Applied Mechanics and Engineering 2007;
196(45):45614576.

Notghi, Bahram, and John C. Brigham. "A computational approach for robust nondestructive test design maximizing characterization capabilities for solids and structures subject to uncertainty." International Journal for Numerical Methods in Engineering 104.4 (2015): 297-311.