An Improved Genetic Algorithm and Its Application in Neural Network Adversarial Attack

The choice of crossover and mutation strategies plays a crucial role in the search ability, convergence efficiency and precision of genetic algorithms. In this paper, a new improved genetic algorithm is proposed by improving the crossover and mutation operation of the simple genetic algorithm, and it is verified by four test functions. Simulation results show that, comparing with three other mainstream swarm intelligence optimization algorithms, the algorithm can not only improve the global search ability, convergence efficiency and precision, but also increase the success rate of convergence to the optimal value under the same experimental conditions. Finally, the algorithm is applied to neural networks adversarial attacks. The applied results show that the method does not need the structure and parameter information inside the neural network model, and it can obtain the adversarial samples with high confidence in a brief time just by the classification and confidence information output from the neural network.