Some forecasting procedures sum the absolute values of the errors and may report this sum, or divide it by the number of forecast attempts to produce the averageforecasterror.
一些预测程序总计错误的绝对值而且可能报告这总数, 或藉着预测尝试的数字分开它生产平均的预测错误。
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The average value of absolute error is 2.05% and the biggest error is 5.12% in the model of loom efficiency. The results indicate that ANN model has high forecast precision.