\begin{equation*}\mathrm {Objective}~1:~~ \mathrm {minimize}\left ({N_{c\times }}\right).\tag{13}\end{equation*}

This objective function aims to minimize the number of iterations required to converge to the optimal solution. The variable $N_{c\times}$ represents the total number of iterations required to reach convergence. By minimizing this objective, the algorithm can converge more quickly and efficiently, which can be particularly important in large-scale optimization problems.