Abstract: The Nelder-Mead simplex method is a well-known algorithm enabling the minimization of functions that are not available in closed-form and that need not be differentiable or convex.

Abstract: Identifying positive influence dominating set (PIDS) with the smallest cardinality can produce positive effect with the minimal cost on a social network. The purpose of this article is to ...

For a man who only stepped into the hot seat on 1 March, Spar’s new CEO, Reeza Isaacs, has had little time for a gentle landing. The group’s interim results for the 26 weeks that ended on 27 March ...