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利用灰色数列预测模型对煤工尘肺年度患病人数进行了预测,同时与指数曲线模型和二次抛物线模型的预测效果进行了比较。结果表明:灰色数列预测模型外推性预测效果优于另外二种模型。
The number of patients suffering from coal worker pneumoconiosis was predicted using the grey series forecasting model, and the prediction results of exponential curve model and quadratic parabola model were compared. The results show that the extrapolation prediction effect of the grey sequence prediction model is better than the other two models.