用标准预测误差(%SEP)，平均预测误差(MPE)和平均相对误差(MRE)来评价其预测能力。
The standard error of prediction (% SEP), the mean prediction error (MPE) and the mean relative error (MRE) were utilized to evaluate the prediction ability of the BP-ANN.
评判标准是预测打分和真实值之间的均方误差(RMSE)。
The evaluation criterion is the root mean squared error (RMSE) between predicted ratings and true ones.
同时，AGA适应度函数定义为BP网络的累积预测误差的标准偏差和基因的终止条件之一。
Meanwhile, AGA fitness function is defined as the standard deviation of BP network's accumulation forecast errors and also one of genetic termination criteria.
实验结果表明，模型预测结果的平均相对误差为10.316%，相对标准差为12.895%，满足工程实际要求。
Experiment shows that the average relative error of predicted results is 10.316% and the relative standard error is 12.895%, thus it satisfying requirements of the engineering.
地下水位的标准误差预测图表明模型进行地下水位空间预测精度较高，灌区内地下水观测井的分布较为均匀、合理。
Standard error map shows that the model predicted water table space high precision irrigation groundwater monitoring Wells within the distribution is more uniform and rational.
地下水位的标准误差预测图表明模型进行地下水位空间预测精度较高，灌区内地下水观测井的分布较为均匀、合理。
Standard error map shows that the model predicted water table space high precision irrigation groundwater monitoring Wells within the distribution is more uniform and rational.
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