GAs	Genetic Algorithms
ANNs	Artificial neural networks
IPS	Interior-point scheme
FFANNs	Feed-forward ANNs
ASA	Active-set algorithm
ANN-GA-ASA	Hybrid of ANNs, GAs, and ASA
MAD	Mean absolute deviation
VAF	Variance account for
S.I.R	Semi-interquartile range
Max	Maximum
X	New technical diagnostics
Ki	ith coefficient of environmental and economic indicator
C1, C2, C3	Values of Initial conditions
WX	X components of W
WZ	Z components of W
wX, wY, wZ	Weighting factor of X, Y, and Z
E	Fitness function
IPA	Interior point algorithm
SQP	Sequential quadratic programming
ANN-GA-IPA	Hybrid of ANNs, GAs, and IPA
FFANN-GASQP	Hybrid of ANNs, GA, and SQP
PSO	Particle swarm optimization
ANN-PSO-IPS	Hybrid of ANNs, PSO, and IPS
TIC	Theil’s inequality coefficient
EVAF	Error in VAF
STD	Standard Deviation
Min	Minimum
Y	elimination costs of emergencies values
Z	the competence of the system of industrial elements
W	Known weights of ANNs or Chromosome of GAs
WY	Y component of weights
nX, nY, nZ	Scaling factors of X, Y, and Z
lX, lY, lZ	Biasing factor of X, Y, and Z
a, b	Real constant values