本文尝试用灰色模型对相对数进行分解运算，并与传统的回归预测方法进行比较。一方面对高职学生的就业率进行预测，另一方面对灰色模型在相对数进行分解预算的准确性进行评价。%This paper attempts to do decomposition operation for relative number by gray model, and compare with conventional regression prediction method, on one hand, to predict the employment rate of vocational students, on the other hand to evaluate the accuracy of the decomposed budget to the relative number by gray model.
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