查询词典 probability function

A quantification method of the error probabilities for the human failure events in probability safety assess is provided, and it is applied in the error probability analysis for the human actions in the identification and isolation of the ruptured steam generator tube of nuclear power plants.

提出了用环境影响指数来定量计算情景环境迫使人的认知失误的发生概率，给出了概率安全评价中人误概率的分析方法，并用于诊断核电站蒸汽发生器传热管破裂和蒸汽发生器隔离时的人误概率分析。

Starting from the statistic characteristics of the signal and noise, the relationship between false-alarm probability and threshold SNR is deduced, as well as detection probability and SNR. The formula of operating range for spot target is given.

从信号和噪声的统计特性出发，文中详细推导了虚警概率与门限信噪比、探测概率与信噪比的关系，基于此推导了红外成像系统对点源目标的作用距离公式。

Therefore,the Bayesian network inference based on CBR(Case-based Reasoning) is proposed in this ***,constructed a suitable description of cases using Bayesian network,assessed and retrieved the cases through technology of probability spreading,achieved machine learning through revising the acquired case and updating the conditional probability of Bayesian networks.

于非，引入了基于案例的推理方式—CBR，降出了基于CBR(Case-basedReasoning)的Bayesian推理，当用Bayesian网构造一个闭于案例的适开描述，且用概率传布技巧评价和检索案例，并通功建改未获得的案例和更旧Bayesian网络须要的后降概率入行教习。

This thesis deduces the probability of a node to be a routing void node theoretically within deterministic deployed and random deployed WSNs, and gets the probability of encountering the routing void node while setting up a path randomly. Also a modified GF algorithm with backoff method to avoid the routing void nodes is presented.

本文从理论上分析了路由空洞在规则部署和随机部署情况下的存在概率，导出了随机部署情况下随机建立的路径遭遇到路由空洞的概率，并提出了一种带有退避改进方法的贪婪转发策略。

Structural improvements in reducing the pump parts with sand contact, such as probability and the probability scaling has played a certain effect, but the pump body material at all times, everywhere in the wear and corrosion can not simply eliminate the problem.

结构的改进在减少输油泵部件与砂粒接触几率和结垢几率等方面起到了一定的效果，但是泵体材料无时不在、无处不在的磨损和腐蚀问题还不能根本消除。

A numeric method of calculating invariant probability distribution for chaotic map is derived. The method is particularly useful for some realistic experimental systems whose transfer probability matrixes are easy to be determined.

提出一种计算混沌映射不变分布的数值方法，该方法特别适合于求解从实验中获得的样本数少，但转移概率易于确定的实际混沌系统的不变分布。

The experimental research on the EAF probability density has shown that the emission characteristics of gasoline engine can be defined by the probability density, which has correspondent relations with catalyst efficiency index. The catalyst efficiency can be predicted through the calculation, so it is useful to the catalyst application.

过量空气系数概率密度的试验研究表明以概率密度对汽油机排放特点进行量化，通过它和催化转化器综合效率指数的关系，推测催化转化器效率情况，对匹配研究具有指导意义。

Attempts to correlate this metric output with both experimental target detection probability and detection time yield rather good results.(2)Based on the Search_2 dataset provided by TNO Human Factors Research Institute of Netherlands, via a simple mathematical model, the target structure similarity measure is used to quantitatively describe the effect of background clutter on the human false target detection probability.

2以目标结构相似性尺度为背景杂波度量因子，以荷兰TNO人类因素研究所提供的Search_2试验数据库为基础，通过构建数学模型的方法，定量分析了背景杂波对观察者目标虚警概率的影响，并在此基础上，讨论了人眼视觉在背景杂波干扰下的虚警概率表征模型。

Probability logic is a branch of logic and its theoretical foundation is strictly probability theory, and it has been play a great role in the uncertainty reasoning.

概率逻辑作为逻辑学的一个分支，它以概率论作为其理论基础，在人工智能的不确定推理方面有着重要的应用价值。

This paper also found the theoretical relationship between the appeared probability of relative rainfall area and the climatic probability of rainfall in weather stations.

还得到了雨区相对面积的出现概率与气象站出现降水的气候概率的理论关系。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。