随机不确定性

重点针对道路交通事故灰色和随机不确定性，研究了一阶单变量灰色预测模型，即GM（1,1）模型。

In light of the grey and stochastic uncertainty of the road traffic accident , an one-step and single-variable grey forecast model GM ( 1,1 ) has been investigated .

分析了DNA分子系统的FPE势函数，对DNA遗传变异的随机不确定性现象进行了解释。

This paper analyses FPE potential fumction of DNA molecule system and explaines the uncertainty of DNA genetic variation .

其中，地基雷达主要存在着随机不确定性，而IFF主要存在模糊不确定性。

There is mainly random uncertainty in ground-based radar , and mainly fuzzy uncertainty in IFF . 3 .

文章对GIS的模糊不确定性进行了研究，主要目的是系统论证GIS确实含有模糊不确定性，使人们真正认识到GIS不仅含有随机不确定性而且含有模糊不确定性。

The paper researches GIS fuzzy uncertainty , and the main purpose is to demonstrate by the numbers that GIS contains fuzzy uncertainty , and make people really realize that GIS not only contains random uncertainty but also fuzzy uncertainty .

传统故障树分析技术建立在布尔代数和概率论基础之上，由于成功地解决了随机不确定性问题，因而得到了广泛的应用。

Traditionally , FTA is base on Boolean Algebra and Probability Theory .

所得到的优化设计解对随机不确定性具有稳定性。

The optimization design has stability under the effects of random uncertainties .

航天型号费用估算随机不确定性的优化综合

Optimization Combination of Cost Estimation Random Uncertainty for Space System

太阳能发电和常规能源发电不同，它具有随机不确定性，而这种时变性又增加了系统的不稳定因素。

Stochastic nature is the main difference between photovoltaic system and conventional energy .

机翼气动弹性的随机不确定性分析研究

Random uncertainty of aeroelastic system

实践证明，模糊不确定性是比随机不确定性更为深刻的不确定性。

Practice has proved that fuzzy uncertainty is more profound than random uncertainty in slope stability evaluation .

对于机械零件误差的不确定性，常用随机不确定性理论来描述。

For uncertainty of error in mechanical parts , it is used to describe it by random uncertain theory .

应用概率论和数理统计方法，建立了无缝线路动力稳定性分析系统中的随机不确定性的概率模型。

Using probability theory and mathematical statistics , probabilistic model on randomicity of the dynamic stability analysis system are built .

实例研究表明，对具有随机不确定性特征的区域水环境承载力评价，所建模型具有很好的适用性。

Case study shows that the model established is applicable for assessment of carrying capacity of water environment with stochastic characteristics .

因此，边坡稳定性分析是一个非常复杂的不确定问题，其不确定性主要有两种：随机不确定性和模糊不确定性。

Thence , slope stability assessment is a geotechnical problem characterized by many sources of uncertainty , random uncertainty and fuzzy uncertainty .

概率统计理论可以量化随机不确定性，是目前最主要的不确定性研究方法。

Probability and statistics theory can be used to quantify the statistical uncertainty , and is the most important uncertainty analysis method .

在工程项目资格预审评审过程中存在较大程度的非随机不确定性，现行的评审方法不能有效处理这种不确定性。

Contractor prequalification evaluation process involves a high degree of nonrandom uncertainties , and current evaluation methods cannot handle these uncertainties effectively .

目前在考虑不确定性的多学科设计优化领域，已有的方法大都是针对随机不确定性，考虑认知不确定的多学科设计优化方法非常少见。

However , existing methods of MDO under uncertainty generally consider only the aleatory uncertainty , methods considering the epistemic uncertainty are quite rare .

结构系统的可靠度不仅与其影响因素的随机不确定性有关，而且与安全准则的模糊不确定性有关。

The reliability of structural system is not only related to its affective factors ' probability , but also to its safe criteria ' fuzziness .

以信息论方法为基础，研究了观测信息的随机不确定性和荷载的随机不确定性对参数识别结果的影响。

Based on the information theory , the influence of uncertainty of the observed information and the uncertainty load to the identified results is studied .

该方法能够高效率地对包含随机不确定性的机翼颤振问题进行优化。

The results show the validity and correctness of this method . This method can complete the optimization of wing flutter problem containing uncertain parameters efficiently . 3 .

金融市场的不确定性主要表现为随机不确定性和模糊不确定性，证券市场和投资者的主观判断往往表现为模糊不确定性。

Financial market uncertainties are mainly divided into random uncertainties and fuzzy uncertainties , the subjective judgment of the stock market and investors often show the fuzzy uncertainties .

给出的例子说明了所给设计方法的有效性。第三，研究了具有非线性扰动和随机不确定性的网络化控制系统的鲁棒镇定问题。

The effectiveness of the proposed design approach are illustrated by numerical example . Thirdly , the robust stability problem for discrete system with stochastic uncertainties and nonlinear perturbations is studied .

可再生能源的间歇性使得原来只在负荷侧存在随机不确定性的电网的发电侧也出现了随机波动性。

In traditional power system , generation side is relatively stable and controllable while power load is fluctuant , the intermittency of renewable energy makes generation side to be uncontrollable too .

由于多径衰落、阴影和路径损耗等的干扰，信道质量在时间、频率和空间上将产生随机不确定性，导致无线通信质量下降。

Due to multipath fading , shadowing and path loss effects , the channel quality in time , frequency and space will generate random variations , leading to the decline in the quality of wireless communications .

基于水环境-社会经济系统的随机不确定性特征，建立了一种适用于指标信息不确定的区域水环境承载力评价模糊随机优选模型。

A fuzzy-stochastic optimization model , which is suitable for water environmental carrying capacity assessment with uncertainty information , is put forward , based on the stochastic characteristic of regional water environment and social and economic system .

从随机不确定性的角度出发，分析了索赔风险产生的一般机理，揭示了索赔风险构成风险损失的作用途径，并引入构造索赔风险空间的三维坐标法。

In the point of the random indetermination , we analyzed the general mechanism of claim risk , discovered the function path of the claim risks composing risk loss , and instructed three dimensions that structuring risk claims space .

然而，普通优化设计没有考虑机械工程中设计参数和变量客观存在的随机不确定性和模糊不确定性以及零件的模糊极限状态。

However , not only random instability and fuzzy instability of parameters and variables , but also the fuzzy limited state of parts are all not considered by the general optimization design , although they exist in mechanical project objectively .

文中提出基于模糊语言场和模糊语言值结构的知识表示新型框架，并提出能够综合处理模糊不确定性与随机不确定性的广义细胞自动机和广义归纳逻辑因果模型。

New framework of knowledge representation of fuzzy language field and fuzzy language value structure is shown in this paper . Then the generalized cell automation that can synthetically process fuzzy indeterminacy and random indeterminacy and the generalized inductive logic causal model are brought forward .

风荷载和结构的设计参数具有明显的随机不确定性，因此从概率角度研究风荷载及风荷载作用下结构的静、动力响应是抗风设计的基本手段之一。

There is obvious random uncertainty in wind load and structure 's design parameters , so it is a basic way in structure wind resistance design to study the wind load and the structure 's wind-induced static or dynamic response from the probability point of view .

研究探讨了空间数据中存在的随机不确定性和模糊不确定性及其来源，详细介绍了影响空间数据质量的质量元素，并结合相关的实际项目，总结归纳了空间数据质量控制的主要内容和方法。

Discusses the random uncertainties and fuzzy uncertainty existed in the spatial data and their sources , detailed introduces the quality elements effected spatial data quality , and combined with the related practical projects , summarizes the main contents and methods of spatial data quality control . 3 .