in data envelopment analysis, the relative efficiency of a decision making unit (dmu) is defined as the ratio of the sum of its weighted outputs to the sum of its weighted inputs allowing the dmus to freely allocate weights to their inputs/outputs. however, this measure may not reflect a the true efficiency of a dmu because some of its inputs/outputs may not contribute reasonably in computing t...

the dynamic facility layout problem (dflp) is the problem of finding positions of departments onthe plant floor for multiple periods (material flows between departments change during the planning horizon)such that departments do not overlap, and the sum of the material handling and rearrangement costs isminimized. in this paper a new optimization algorithm inspired from colonizing weeds, invasi...

The purpose of this paper is to introduce the class enriched multivalued contraction mappings. Both single-valued and contractions are defined by means symmetric inequalities. Our main result extends generalizes recent Berinde P?curar (Approximating fixed points in Banach spaces, Journal Fixed Point Theory Applications, 22 (2), 1–10, 2020). We also study a data dependence problem point set Ulam...

Network flow formulations are among the most successful tools to solve optimization problems. Such correspond determining an optimal in a network. One particular class of network is arc flow, where variables represent flows on individual arcs For $\mathcal{NP}$-hard problems, polynomial-sized models typically provide weak linear relaxations and may have too much symmetry be efficient practice. ...

A Dynamic Data Driven Application Systems (DDDAS) approach is developed for evaluation of fluid-thermal systems wherein a complete specification of the boundary conditions is not known a priori and experimental diagnostics are restricted to a limited region of the flowfield. The methodology is applied to the configuration of a heated jet injected into a laminar boundary layer where the jet temp...