go top 返回词典
• The model uses mean absolute deviation of return as measure of the risk and gains a optimal portfolio by solving the linear programming.

模型采用收益平均绝对离差作为风险尺度，可以通过求解线性规划获得最优证券投资组合

dict.cnki.net

• In this paper, based on the approach of a trade off between mean and absolute deviation, we investigate the portfolio performances of 169 A stocks in Shanghai stock market.

本文基于均值绝对偏差折中方法探讨上海股票市场169股票投资组合分析，得到了一些有益的启示和结论。

dict.cnki.net

• The mean absolute error and the mean square deviation obtained by the method show that the new method is more effective than the traditional iterative methods.

文章有理插值函数去逼近非线性函数便可得到一近似的回归函数，计算结果表明方法拟合的平均绝对误差方差传统方法效果好

lib.nwnu.edu.cn

• The mean absolute deviation of the calculation results by this method from the experiment data was 14.9%.

算法预测值实验数据相比，平均绝对偏差为14．9％。

dict.cnki.net

• We propose a mean semi-absolute deviation portfolio selection model with the restricted short selling. The model is a linear programming problem and is solved by the pivoting algorithm.

本文提出限制性卖空均值-绝对偏差投资组合模型通过变量替换将该模型转变为一般线性规划问题，从而运用线性规划旋转算法进行求解

dict.cnki.net

• Entropy, standard deviation, mean absolute deviation of the PD gray images are extracted and the acquired characteristics are analyzed for five types of discharge pattern recognition.

研究了根据局部放电灰度图像光谱特征提取标准差平均绝对误差等三个统计特征方法，放电图像的统计特征计算结果进行分析

dict.cnki.net

• Entropy, standard deviation, mean absolute deviation of the PD gray images are extracted and the acquired characteristics are analyzed for five types of discharge pattern recognition.

研究了根据局部放电灰度图像光谱特征提取标准差平均绝对误差等三个统计特征方法，放电图像的统计特征计算结果进行分析

dict.cnki.net

\$firstVoiceSent
- 来自原声例句