Table 3: Classification summary of binary approach.

Discretization(i) Rounding off
(ii) Random-key or small value position
(iii) Metaheuristic discretization

Binarization(i) Two-step binarization(i) Transfer function and binarization
(ii) Great value priority (GVP) and mapping
(iii) Angle modulation and rule
(ii) Continuous-binary operator transformation(i) Modified algebraic operations: set-based approach
(ii) Promising regions: quantum binary approach
(iii) Promising regions: binary method based on estimation of distribution