Optimization of Consignment-Store-Based Supply Chain with Black Hole Algorithm

Pseudocode 1

Pseudocode of BHA.

Input: number of stars, objective function, constraints, sign restrictions, termination criteria

Output: optimal solution

// Initialization

generate feasible solutions randomly in the -dimensional search space (9)

// Pre-evaluation

for each stars, evaluate the objective function ((2)–(4), (10))

// Loop until the termination criteria satisfy

While (termination criteria satisfy) do

// Selection of the black hole

select the best star that has the best value to become a black hole (11)

// Hawking radiation

change the position of the black hole (14)

// movement of stars towards the black hole

move the stars towards the black holes (12) while constraints ((5)–(8)) are taken into consideration

// Check the position of stars

if star is inside the Schwarzschild radius

absorb the star and generate a new one in the search space (13)

end if

// Evaluation

for each stars, evaluate the objective function ((2)–(4), (10))

End of while