Dear Sami,

Here is attached files in subject, good luck.

Best regards

Thank you Mohamed-Mourad Lafifi

Thank you Juan Villegas: indeed, IGD (Inverted Generational Distance) is another unary metric (to measure convergence & diversity) which is more suitable for many-objective problems due to its computation low cost , but we need to know the true pareto front to calculate the IGD (which is not appropriate for real world problems (my case)!).

See : S. Jiang, Y. S. Ong, J. Zhang and L. Feng, "Consistencies and Contradictions of Performance Metrics in Multiobjective Optimization," in IEEE Transactions on Cybernetics, vol. 44, no. 12, pp. 2391-2404, Dec. 2014.

doi: 10.1109/TCYB.2014.2307319