1) Semivariogram
半方差图
2) directional semivariogram
方向半方差图
3) regularized semivariogram
正则化半方差图
4) average semivariogram
平均半方差图
5) semivariance
半方差
1.
A Risk Measure Model for Investment Project Based on Semivariance;
基于半方差的投资项目风险度量模型研究
2.
Through comparative and empirical analysis of the portfolio management based on the mean-variance model (the u-V Model) and (author s) semivariance model (the E-SV Model), this paper clears up obscurity of the u-V Model and the definition of risk and finally sheds light on the application significance of the E-SV Model in portfolio management analysis.
通过对马柯维茨的均值—方差模型(theμ-V)和笔者的半方差模型(theE-SV)在组合投资中进行对比实证分析,文章廓清了笼罩在均值—方差模型及其风险定义上的迷雾,使半方差模型在组合投资中的突破性指导价值进一步明晰化。
3.
Optimal hedge ratio is estimated under different time scales by taking minimum semivariance as hedge target.
本文运用极大交迭离散小波变换对新加坡新华富时A50股指期货合约原始数据进行逐尺度分解,在不同时间尺度下以半方差最小化为套期保值目标对最优套期保值率进行估计,并与最小小波方差套期保值率进行比较。
6) semivariogram
半方差
1.
In order to make clear the spatial and temporal variation of SO_2 in China,the average annual concentration of SO_2 in key cities of 1990,1995 and 2000 was analyzed based on the geostatistics that mainly include semivariogram and kriging.
为反映我国SO2污染的时空演变规律,通过半方差分析和克里格空间内插法,对1990年,1995年和2000年主要城市的SO2年日均浓度进行了空间分析,发现SO2浓度空间分布的结构性在不断减弱,随机性有所增强,并且在总体改善的同时,污染中心有向西部转移的动向。
2.
nigra plantation with different densities in the Farm of Xuejiazhuang Village in Datong, Shanxi, China, was estimated by applying the semivariogram theory of spatial statistics.
以高空间分辨率遥感影像QuickBird的全色波段为数据源,应用空间统计学半方差理论,对山西大同薛家庄林场不同林分密度的小黑杨人工纯林冠幅尺寸进行估计。
3.
Using the panchromatic wave band of high spatial resolution remote sensing image-QuickBird as the data source, the crown of plantation White Bark Pine (Pinus bungeana) with relative high crown closure was accurately estimated by applying the semivariogram theory of spatial statistics.
以高空间分辨率遥感影像QuickBird的全色波段为数据源,应用空间统计学半方差理论,对郁闭度较高的人工白皮松林冠幅尺寸进行较为准确地估计。
补充资料：图的减缩图(或称图子式)
图的减缩图(或称图子式)
minor of a graph
图的减缩图(或称图子式)【.皿以ofa脚户;MHHoPrpa中a」【补注】设G是一个图(graph)(可以有环及多重边).G的一个减缩图(nullor)是从G中接连进行下述运算而得的任何一个图: i)删去一条边; 五)收缩一条边; 说)去掉一个孤立顶点. NRobe由on与P.D.Se脚aour的图减缩定理(脚Ph nl的。r theon习11)如下所述:已知有限图的无穷序列G，，GZ，…，则存在指标i
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条