Supposing that the effectiveness of different safety measures has abstract function relation,the function was extended into power series by normalization,introduced all possible mathematical relativity,and eliminated redundant relativity by F-statistic and Gram-Schmidt orthography algorithm.
为了得到信息系统安全措施有效性的评估模型,研究不同的安全措施对抗某一风险的相关性,在假设不同安全措施对抗某一风险的有效性存在(抽象)函数关系的前提下,通过归一化处理展开成级数,引进所有可能的数学意义上的相关性表示,然后根据Gram-Schmidt正交化、F-统计量等这些数学工具结合回归分析的方法逐步剔除冗余相关性,进而得到最终的安全措施有效性评估模型,这比传统的线性评估模型具有更高的精度。
In the prediction of time series by using the periodic extrapolation of the variance analysis,and in double-test stepwise regression prediction,or in other analysis of related problems,there is a need to find the maximum from the F-statistics of several factors to be F-tested significant.
在时序方差分析周期外推预测、双重检验逐步回归预测及其他相关问题的分析中,需要从若干因子的F-统计量中选取最大值进行F-检验来确定这类问题的显著性。
Established a method evaluating the fuzzy cluster validity with F-statistics of multivariable statistics and changing levels of significance,and constructed a Validity funtction of cluster with the minimal level of significance.
在模糊聚类分析中,引入多元分析中的F-统计量和变化的显著性水平,用其评价模糊聚类的有效性,并用分类的F-统计量满足最小显著性水平的F检验构造了分类的有效性函数,在此基础上给出求有效分类的优化模型和模型的求解方法。
According to the theory of difference analysis in statistics and entropy theory in information theory, two functions-F statistics and fuzzy division entropy were constructer, the F statistics was mainly used to determine the optimal division number and the fuzzy division entropy was used to verify the validity of division.
首先在常规的Bezdek模糊划分模型的基础上,引入了考虑权重的模糊划分模型;并根据数理统计中的方差分析理论和信息论中的信息熵理论,构建了模糊F统计量、模糊划分熵,F统计量用来确定最佳划分数,模糊划分熵用来检验模糊划分的有效性。
Sliding window least square method is used with U statistics and F statistics to quantitatively analyze the variance of innovations.
通过使用滑窗最小二乘法和U统计量、F统计量对新息的符号及方差变化进行定量分析,实时辨识出Kalman滤波器所处的工作状态。
Using the information of F-statistics,GST,gene flow(Nm),DS genetic distances,the genetic structure and differentiation were evaluated.
利用25对微卫星标记研究了江西4个家鹅资源群体(莲花白鹅、兴国灰鹅、广丰白翎鹅和丰城灰鹅)的遗传结构及遗传分化,通过计算F-统计量、基因分化系数和基因流等参数,评估了各群体间遗传结构与分化。
Pointing to the optimal category for comprehensive water use level in a river basin,the paper put forward a knew method used a multi-statistical analysis F-statistics and significant change level for the research of optimization category and established a way to seek the optimal classification.
针对流域综合用水水平进行最优分类的问题,提出了一种利用多元统计分析的F-统计量和变化的显著性水平的新方法,用其进行最优化分类的研究,构造了一种寻求最优分类的方法来寻求最优阈值。
The clustering scheme with the largest F-statistics is chosen.
选择具有最大F-统计量的划分聚类方案。
In addition,we have also introduced pseudo F-statistics,on the one hand,some of the overlapping points in space realizes effective classification;on the other hand,it can give the best clustering number,thereby making up for the shortage of k-modes clustering method.
另外,还引入了伪F统计量,一方面,可以对空间中有部分重叠的点进行有效的分类;另一方面,可以给出最佳聚类数目,从而弥补了k-modes聚类法的不足。
TESTING OF THE EFFICIENT MARKET HYPOTHESIS WITH THE DYNAMIC OVER-SIMULATED F STATISTIC METHODS;
动态过拟合F统计量检验股市有效性
ON DYNAMIC CLUSTERING METHOD FOR GENE SEQUENCE PATTERN BASED ON MULTIDIMENSIONAL PSEUDO F-STATISTICS
基于多维伪F统计量的基因序列图形动态聚类研究
A New Method for Evaluation of Reliability of Linear(n,f,k) and〈n,f,k〉Systems
线形(n,f,k)系统和系统的可靠度计算新方法
Tables for statistical distributions--F-distribution
GB/T4086.4-1983统计分布数值表F分布
A Design for Inmarsat-F System Standard Land Earth Station;
Inmarsat-F系统标准岸站的设计
The Design and Implementation of F Interface Management System Based on TMN;
基于TMN的F口管理系统的设计与实现
Study and Design of General Demodulation System for Fiber F-P Sensor and FBG Sensor;
光纤F-P及FBG传感器通用解调系统研究与设计
Gene Expression Data Analysis of FAMC Algorithm Based on Pseudo F-statistics
基于伪F统计FAMC算法的基因表达数据分析
On F-semisymmetric connection and F-curvature tensor;
关于F-半对称联络和F-曲率张量(英文)
The Test System Design for the Noise of OCDs and Study on Analysis Approach of 1/f Noise;
光电耦合器件噪声测试系统设计及其1/f噪声分析方法研究
---Frandlin Roosevelt, American President.
——美国总统罗斯福.F.。
The relations between f linear dependence and linear dependence;
f-向量空间中f-线性无关与线性无关的关系
accurate statistics, measurements, calculations, etc
准确的统计、 测量、 计算等
Unification of Units of Measurement Panel
统一计量单位小组(统一计量小组)
Spearman computation
斯皮尔曼计算法 斯皮尔曼计算法 Spearman f
The Application of the PLC System Based on the GMR System in the Fire & Gas System
基于GMR系统的PLC在F&G系统中的应用
Symmetry and F-S、F-J quantization of constrained system including holonomic subsidiary constrains;
外在完整约束下约束体系的对称性和F-S、F-J量子化
They have found the way to grade up the F-101 aircraft
他们找到了提高F-101飞机质量的途径。
