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In this paper, we study a signal processing problem which concentrates on outlier detection and data mining in order to rediscover some useful information. Moreover, the great difficulty of the subject is caused by both the external environment and the internal mechanism. In the external, owing to limit of impersonal condition, such as, realistic… (More)
It is well known that the grey forecasting model has been successfully adopted in various fields and its further improved model is proposed ceaselessly. In this paper, we focus on the prediction problem of Shanghai Stock Index by using GM(1,1) model and OSDGM model. Our simulation results show that two models can effectively predict the developing system.