查询词典 probability density

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。

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。

This dissertation adopts two new variables, the congestion probability and the congestion distance, which provide new metrics for describing the congestion situation, and present a theoretical basis for the dropping probability of packets in the random early detection.

通过与其它数据流和传输协议性能的分析和比较，这一方法表现出了很好的TCP友好性、快速收敛的公平性、高效的资源利用率和平滑性，并且还具有缓解网络数据流的突发性等性能。

Breakeven Point and Sensitivity analysis were revised to make the risk evaluation properly and scientifically. The evaluations of the probability analysis of random risks were analyzed in the way of the theoretical probability and Monte Carlo simulation. And the application of gray prediction can make up the lack of data. 5. For the risk assessment of the real estate investment, the fuzzy math and the gray cluster were applied to reduce the influence of the subjective factors in the risk measurement.

对于房地产投资风险的估计则主要是针对随机风险进行概率研究，首先对目前常用的BP分析和敏感性分析进行改良，进一步降低风险估计的确定性成分；其次对随机风险的估计进行了研究，结合案例探讨了理论概率分析和蒙特卡罗模拟方法在分析中的应用；并且将灰色预测应用于风险估计，弥补我国房地产业发展时间短、数据不完整的缺点。

It inculcates justification before God on the ground of human merits.

它说明在上帝灌输在地上人类优点。

TH Leaguer has excellent Quality Control and Management System.

本公司具有完善的品管部门。