绝对离差是指单项数值与平均值之间差的绝对值,一般计算平均差来表示数据分布的离散程度。
... absolute mean deviation : 绝对平均离差[偏差] absolute deviation : 绝对离差 MAD (minimum absolute deviation) : 最小绝对离差 ...
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absolute measure of dispersion : 离差的绝对度量 absolute dispersion : 绝对离差 measure of dispersion : [大陆]离差测度,离散的度量,[台湾]离势量数 ..
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...收益率之间的差值这个跟踪误差的定义上,提出了四个现行的跟踪误差最小化模型,分别是均值绝对离差(mean absolute deviations,MAD)模型、均值绝对下方偏差(mean absolute downside deviation,MADD)...
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...数收益率之间的差值,并提出了以下(f)至(i)4个线性追踪误差 最小化模型,分别是均值绝对离差(meanabsolutedeviations,MAD)模型、均 值绝对向下偏差(meaIlabsolutedownside deviation,MADD)...
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So securities returns can be expressed as a grey interval. Next, we give some methods that measure risk of portfolio, then establish risk measure model with absolute-deviation based on grey number.
首先用曲线包络预测法建立证券收益率的灰平面,于是,在某一具体时间内的证券收益率可表示为一灰数;其次介绍了证券投资风险度量的一些方法,在此基础上建立了基于灰数的绝对离差风险度量模型;最后建立证券投资组合的灰色多目标优化模型,并给出了两种解法。
参考来源 - 灰色多目标优化模型在证券投资组合中的应用·2,447,543篇论文数据,部分数据来源于NoteExpress
用绝对离差度量供电公司的购电风险,建立以风险最小化为目标的多市场购电组合优化模型。
Using the absolute deviation as a risk measurement index, a novel absolute deviation optimal purchasing portfolio model for multiple markets is built in risk minimization target.
当我们计算极差,四分点离差和平均绝对偏差时,答案的计量单位与数据单位量相同的。
Earlier, when we calculated the range, the interquartile deviation, and average absolute deviation, the answers were expressed in the same units as the data itself.
提出依据离差绝对值和准则,用目标规划建立多元线性预测方程,该方法优于回归分析。
Based on the criterion of deviation squares sum, a general forecasting equation is set up by using goal programming. It has advantages over the analysis of multi-variable linear regression.
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