| The estimation research of stock value is an important process of stock investment. The formation of the estimation method is a symbol of the maturity and perfection of stock value estimation model. It not only can make the stock value investment popular, but also can provide more accurate stock investment method, which has important theoretical and practical significance. This paper focuses on the stock value estimation based on GCS-BP algorithm and NCS-RBF algorithm.Firstly, the stock value estimation model is established based on GCS-BP network which predict the company’s assets. For the shortcomings of initial weights and threshold of improper easily trapped in local minima, Gaussian disturbance cuckoo algorithm(GCS) is proposed to optimize the initial weights and thresholds of BP neural network, and applied to predict the company’s assets. The simulation results show that the prediction accuracy based on GCS-BP is better than CS-BP. Then, according to the Black-Scholes option pricing formula, a stock value estimation model based on GCS-BP network is established.Secondly, the stock value estimation model is established based on GCS-BP network which predict the volatility of company’s assets. For the shortcoming of prediction error of company’s assets, GCS-BP algorithm is proposed to predict the volatility of company’s assets, compared with CS-BP algorithm, and the simulation results show that the prediction accuracy based on GCS-BP is better than CS-BP. Then, according to the Black-Scholes option pricing formula, a stock value estimation model is established.Thirdly, the stock value estimation model is established based on NCS-RBF network. For the shortcomings of CS algorithm to search slowly, the sharing mechanism niche technology(NCS) is proposed to enhance the performance of CS’s solution and to search the initial parameters of RBF neural network. The simulation results show that the prediction accuracy of NCS-RBF is better than CS-RBF. Then, according to the Black-Scholes option pricing model, the stock value is estimated.Finally, the full text is summarized, and the future research direction of the stock value is further prospected. |
