Keyphrases
- hybrid algorithm
- standard test problems
- portfolio selection
- particle swarm optimization
- simulated annealing
- ant colony optimization
- hybrid optimization algorithm
- tabu search
- imperialist competitive algorithm
- evolutionary algorithm
- optimization problems
- optimal solution
- particle swarm optimization pso
- artificial bee colony algorithm
- optimization method
- benchmark problems
- combinatorial optimization
- special case
- lower bound