Table 1.

Problem attributes and their values.

Attributes	Values
y = year of the plan	y = 1 for the first year of the next plan (2015), 2 for the second, 3 for the third, 4 for the fourth, and 5 for the lasty = 0 for the last year in the previous plan (current year, 2014), −1 for 2013, and so on
u = university	u = a university, u ∈ U, the set of all universities in the country
i = status	E stands for “enrolled” and G for “graduated”
j = gender	b stands for boys section and g for girls section
k = education program	m = a college in the medicine specialty, m ∈ M, the set of all colleges in the medicine specialty s = a college in the science and engineering specialty, s ∈ S, the set of all colleges in the science and engineering specialty a = a college in the arts specialty, a ∈ A, the set of all colleges in the arts specialty, and T is the total number in all specialties M, S, and A