Prediction of Chinese seafarers quantity based on improved GM(1,1)model

The annual quantity of Chinese seafarers is influenced by multiple factors,it may change significantly some year.In order to effectively solve the volatility of sequence,predict the quantity of Chinese seafarers,the improved grey system theory prediction model is put forward.This model will Build mathematical models and calculate the quantity of Chinese seafarers in the next five years.The result shows that the improved model can well predict the quant…查看全部>>