2) extension assessment
可拓评估
1.
Secondly,some critical factors are selected and the classification of proneness is divided into four degrees,while the classical and limited matter-elements of vulnerability assessment are set up in a coal mine to test feasibility of extension assessment.
首先,详细阐述可拓学评估原理;接着,为了验证煤矿瓦斯爆炸易发性可拓评估的可行性,结合某一煤矿实例,比选煤矿瓦斯爆炸易发性的评价指标,并确定煤矿瓦斯爆炸易发性的分类标准,构建煤矿瓦斯爆炸易发性评估的经典域、节域和物元;然后,为了避免确定指标权重的人为主观因素的影响,提出用简单关联函数确定指标权重;最后,计算煤矿瓦斯爆炸易发性的关联函数值和关联度,确定瓦斯爆炸易发性的等级及其变量特征值。
2.
The flow chart of extension assessment is established, and the main influencing factors including the classification of gas burst are preprocessed as dimensionless and used to set up classical and limited matter-elements.
首先,建立隧道瓦斯突出的可拓评估流程;接着,结合某一隧道3处煤层的勘测实例,比选隧道瓦斯突出的评价指标,并确定隧道瓦斯突出的分类标准;其次,对定性的评价指标进行量化,并对各指标进行归一化、无量纲化预处理,构建隧道瓦斯突出评估的经典域、节域和物元;然后,为避免确定指标权重的人为主观因素的影响,提出用简单关联函数确定指标权重;最后,计算隧道瓦斯突出的关联函数值和关联度,确定瓦斯突出的等级及其变量特征值。
3) visualized evaluation
可视评估
4) estimable function
可估函数
1.
For arbitrary conditional estimable function,the linear conditional minimax estimator under a given quadratic loss function is defined and the unique linear conditional minimax estimator is obtained.
对任一条件可估函数 ,给出了二次损失下线性条件 Minimax估计的定义 ,并得到了唯一的线性条件Minim ax估计 。
2.
For arbitrary estimable function,the unique linear minimax estimator under a given matrix loss function is obtained in the class of homogeneous linear estimators.
考虑方差分量模型,对任一可估函数,在二次损失下得到了线性可估函数在齐次估计类中的唯一的线性M in-im ax估计。
3.
Let Y be a random n-vector with mean Xβ and covariance matrix σ2V, and S be a linear estimable function, where X, Sβ and V ≥ 0 are known matrics, ∈ Rp and σ ≥ 0 are unknown parameters.
设Y是具有均值Xβ和协方差阵σ~2V的n维随机向量,Sβ是线性可估函数,这里X,S和V≥0是已知矩阵,β∈R~p和σ~2>0是未知参数。
5) trust evaluation
可信评估
补充资料：本估
1.原价。
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