查询词典 hypothesis test

Machinery noise fault diagnosis wavelet transform composite hypothesis test

机器噪声；故障诊断；小波变换；复合假设检验

A binary composite hypothesis test model with unknown and stochastic parameters was constructed.The sequential probability ratio test with the uniformly most powerful effect was provided for white Gaussian process.This novel method was used to detect the distant series of pipe mass flow difference of leakages produced in stationary and non-stationary operation situations, respectively.

建立了以泄漏信号的幅值为随机参量的二元复合假设检验模型，提出了具有一致最大功效的序列似然比检验方法，并进行了平稳观测序列强泄漏信号和非平稳观测序列弱泄漏信号的检测。

We get appropriate threshold with mean excess function plot, get severity distribution of losses over threshold with GPD and frequency distribution with hypothesis test.

首先根据均超函数图估计出恰当的阈值，利用假设检验估计超阈值的发生强度，用广义帕累托分布估计了超限参数。

Study of segmentation of surveillance objects with motionThe camera noise statistical characteristic is approximated as Gauss or Laplace distribution, then an error probability is set and a threshold is determined. According to the hypothesis test theory, a constructed statistic can judge whether an object is moved or not.

二、以运动物体作为监控对象的分割研究将噪声分布近似为Gauss分布或Laplace分布，再设定误判概率进而确定一个阈值就可以利用假设检验的思想，构成统计量对不同对象判断其运动与否。

About live load, the number and weight of vehicles loaded on the structure are analyzed and carried out hypothesis test, and then the regularity of their probability distribution is determined.

在活载方面，对作用于结构的车辆数及车重进行了分析、假设检验，确定了其概率分布规律。

In§5.4,we discuss the hypothesis test problemwhen the location and scale parameter may all change.

5.3讨论尺度参数变点的假设检验问题，引述Wangand Bhatti(1998a)的结果，利用Csorgo and Horváth(1997)的定理，对于Wang andBhatti(1998a)提出的检验统计量〓，其中〓，我们获得了〓的大样本性质，即对于一切实数x〓11进一步地，给出变点〓的估计〓，利用Csorgo and Horváth(1997)的推论1.6.2，我们讨论了变点估计〓的渐近性质，由此，可以给出变点〓的区间估计，〓12其中〓，〓满足〓和〓，这里〓为〓的分布函数。

By means of statistical inference as well as hypothesis test method, it is determined that the variables of compressive stress and shearing stress are of Extreme-value Ⅰ Distribution and that the variables of frictional coefficient and cohesion coefficient are of Logarithmic Normal Distribution.

应用统计推理和假设检验方法分析得知，压应力与切应力随机变量呈极值Ⅰ型分布，摩擦系数与粘结力系数随机变量呈对数正态分布。

For restricting the probabilities of two types of errors, the fuzzy hypothesis test under lognormal distribution is studied with crisp data and fuzzy hypotheses.

在样本数据精确，统计假设模糊的情形，以控制出现两类错误的概率为目的，研究了对数正态分布下的模糊假设检验问题。

Besides the hypothesis test and two types of error probability, the definitions of probabilistic minimum clock deviation, clock synchronization, etc.

最后，基于服务器和客户端之间双向消息通信传输模式，给出时钟偏差的估计和检验样本。

The arbitrations in each engineering division of NEEB were compared. Using the software of Statistical Package for the Social Science, this study checks nill hypothesis of bid prices, claim money amounts, and the final money amounts. The claim-compensation ratios of arbitration were analysis by T-test, significant level, and their variables.

经笔者於搜集并经过筛选得其中88个样本，试图利用SPSS程式(Statistical Package for the Social Science套装软体)作各工程处间的比较，包括发包金额、求偿金额、仲裁判断金额相互间虚无假设后以T-test了解其假设是否成立，其差异是否显著，两母群体之变异数是否相同，并分析比较各仲裁判断案例的理赔率。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。