In order to find factors affecting the achievement of national Olympic Games ,We give an accurate prediction the medals (gold medals and total medals) and final rank of the Olympic Games by constructing a Basic Prediction Model using publicly available data in order to account for the effect of the relation between historical scores and present scores. The data we can use for prediction is seldom thus we propose a Grey Prediction Model as our basic prediction model. In addition, corresponding to the Olympic results of the factors were analyzed one by one.
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