Table 3 Description of used symbols.
Symbol | Description |
|---|---|
X | Position of each wolf |
Xα, Xβ and Xδ | Position of three best wolves |
Xp | Position of prey |
D | Distance vector |
A and C | Co-efficient controlling exploration and exploitation |
a | A value that decreases from 2 to 0 over the span of several repetitions |
r1 and r2 | Random values in the range [0, 1] used for adjusting A and C |
X(t + 1) | Updated position of wolf for next iteration |
N | The number of alternative responses. |
P(i, j) | Initial position matrix of wolves, values of the parameters ‘i’ and ‘j’ range from 1 to N and 1 to D, respectively |
wi | Total no. of wolves in a pack |
XΩ | Position of the omega wolf, used in EGWO |
X(α,d), X(β,d), X(δ,d) and X(Ω,d) | Dimension split of the best four wolves |
split (x1, x2, x3, x4) | EGWO-specific split function to balance between top wolf positions (α, β, δ, and Ω) and improve search space coverage. |
b | constant; its value varies between 0 to 2, |
Stepb(x), d | binary steps in dimension “d” |
rand∈[0,1] | Random values for probabilistic crossover and adaptive position adjustments. |
A | Accuracy |
C1, C2 | Constants weighting accuracy and feature size in the fitness function |
