Preferred alternative evaluation.Mathematically, leti, j, k denote indices corresponding to the stakeholders, decision criteria and synthesis technologies, respectively, andwij denotes an array expressing stakeholderi’s weight on criterion j, andx jk denotes the technologyk’s score on criterion j. For each scenario, we calculate what is called a ‘weighted net flow’,wi (k)¼(Sjwij w ′ ij (k))/(i21) for each technology using the PROMETHEE II algorithm ,wherew ′ij (k) results from pairwise comparison ofx jk to all other technologies on all criteria.w ′ij (k) ranges from –1 to 1, where –1 means technologykis worse than every other technology on criterionj,andþ1means it is better than all other technologies on criterion j. (See Supplemental Information for a detailed discussion and example of net flow calculations.) The technology that averages the greatest net flow over all 10,000 trials is most preferred.
đang được dịch, vui lòng đợi..
