An Approach to Minimize the Number of Function Evaluations in Global Optimization Tomi Haanpää A new simple mathematical model is created for search algorithms of global optimization to make the search more effective with respect to the number of function evaluations. If a new solution candidate is close to a vector for which the function value is far from the so-far known best one, then there is no need to evaluate the candidate. To detect promising candidates, a radial basis function is adapted to available information of the objective function without a need to solve any optimization subproblems. Thus, the idea is to avoid increasing computational cost.