查询词典 composite hypothesis

First, in the composite hypothesis testing, circular dispersion error which is more practicable than horizontal and vertical error is used to discuss some problems of the dispersion of impact points; and the critical area of decision in the dispersion problem is analyzed; the specific expression of Bayesian risk is worked out, which ameliorates the method that only can get the approximate solution by calculating numerical integration.

由此，本文主要应用Bayes方法对以下几方面进行了探讨：首先，在复杂假设下，本文利用圆散布误差这一精度指标对落点散布鉴定问题进行研究，它比以往所用的纵、横向偏差精度指标更具现实意义；分析了此鉴定问题的决策临界区域；给出其Bayes风险的具体表达式，对用数值积分进行近似求解的方法进行了改进；在此基础上，通过极小化试验的风险确定最优试验数n，并讨论了决策中犯两类错误的概率，给出了验前信息的表示。

In order to get reliable diagnosis results,a composite hypothesis of the normal nose signal and faulty noise signal...

试验验证表明，该方法能有效地诊断摩托车发动机存在的活塞击缸故障。

ABSTRACT Abduction, characterized as finding the most plausible composite hypothesis that explains all observation data, is a basic form of...

反绎推理是人类逻辑推理的一种基本方式，它所具有的多解性和高或然性以及由此引起的高计算复杂性是当前AI研究所遇到的困难之一。

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

We discuss the serial M-ary multisensor decentralized data fusion based on Neyman-Pearson principle, especially on multiscale hypothesis test based on composite hypothesis.

建立了基于Neyman-Pearson准则的串行M元多传感器数据融合和复合假设测试的定义和统计特性标准，引入了基于复合假设测试的多尺度假设测试。

Secondly, based on the FO estimate, we formulate the timing error and channel estimation as a problem of composite hypothesis testing according to the first signal model, and then solve the problem by the composite hypothesis testing approaches.

该估计方法包括两步：第一步是根据第二个系统模型，推导了一种有效的最大似然频偏估计器；第二步是根据所获得的频偏估计值，利用第一个系统模型，将定时误差和信道估计表示成一个复合假设检验问题，然后再利用复合假设检验方法进行定时误差和信道估计。

A Uniformly Most Powerful Test is applied to the composite hypothesis testing of leak signal With little prior statistical knowledge.

给定误警概率和漏报概率，施行具有一致最大功效的似然比检验(Uniformly Most Powerful Test，UMPT)。

In order to get reliable diagnosis results,a composite hypothesis of the normal nose signal and faulty noise signal is constructed,and by testin that hypothesis,faults can be detected accurately.

试验验证表明，该方法能有效地诊断摩托车发动机存在的活塞击缸故障。

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。

The achievement that soil ultimate bear capacity heightened under pile caps due to barrier effect of piles gained from model test, and soil move around piles acquired from numerical simulation, its not only verified hypothesis of composite pile foundation nonlinear design theory, but have important reference value to the study of design theory and design method of composite pile foundation, which help to go deep into study of promote pile-soil-pile caps nonlinear interaction theory and composite pile foundation nonlinear design theory.

由模型试验得到的桩的遮拦作用对承台下土体极限承载力提高和数值模拟得到的土体绕桩流动等成果，不仅验证了

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。