查询词典 statistical decision process

But,the drawbacks of Shewhart's control chart is that when the control chart shows abnormal,it cannot tell us what and where is the assignable cause,i.e.it cannot diagnose the abnormalityof the process.In 1982,Prof.Gongxu Zhang proposed the diagnosis theory with two kinds ofquality,solved the diagnosis problem of assignable cause,thus opened a new direction ofstatistical diagnosis theory and developed the theory of SPC into a new stage ofSPCD(Statistical Process Control and Diagnosis).The multi-operation and multi-index system exists everywhere,in general,nearly all theproduction lines of factories belong to this system.

但休哈特控制图的缺点是，当控制图显示异常时，它不能告知是何原因、何处发生了异常，即不能诊断。1982年，我国著名质量管理专家张公绪教授提出两种质量诊断理论，解决了对异常因素的诊断问题，开辟了统计诊断理论的新方向，将质量控制推向了一个新的发展阶段——统计过程控制与诊断阶段。

The analysis in theory proves that cellular automaton is equal with a stochastic process that described by stochastic difference equations. The primary differential equation is expectation of this stochastic process. And its variance function is controllable. These results show that cellular automata are in agreement with primary differential equation in the statistical sense.

理论分析证明：该方法设计的细胞自动机等价于一个可用随机差分方程描述的随机过程，该随机过程以原微分方程为期望函数，并且，其方差函数是可控的，表明细胞自动机和原微分方程在统计意义上是一致的。

Multivariate statistical process control ; squared prediction error; principal component analysis ; process monitoring

多元统计过程控制；平方预测误差；主元分析；过程监控

Studies on statistical properties of spontaneous spike trains of single auditory nerve have shown that the distributing patterns of interval in spike trains represent Poisson distribution. Since Poisson distribution is one of the simplest stochastic processes, previous studies on spontaneous spike trains of single auditory nerve were performed primarily by assuming them as stochastic processes. Recently, further studies on nonlinear dynamic system show that we have not enough evidence to demonstrate the process, whose distribution of probability density is exponential, is Poisson process.

中文题名豚鼠听神经单纤维放电序列的非线性特性分析副题名外文题名 Analysis on nonlinear properties in spike trains of single auditory nerve fiber in guinea pig 论文作者林龙年导师孙心德教授学科专业生理学研究领域\研究方向听觉神经生物学学位级别博士学位授予单位华东师范大学学位授予日期2001 论文页码总数91页关键词听神经听觉神经生理豚鼠馆藏号BSLW /2001 /Q42 /41 对听神经单纤维自发放电序列的统计特性研究表明，听神经单纤维放电间隔呈泊松分布，而泊松过程是最简单的随机过程之一，因此以往的研究主要将听神经单纤维自发放电序列作为随机过程来处理。

Then the reconstructed data are analyzed by multiple statistical indexes such as T2 or SPE to determine if the supervised process exceeds the normal control limits. If fault occurs, then the supervising program will alarm to prompt that the process has abnormal states. Because it is hard to get the inverse mapping from the kernel space to the original space after the original data are nonlinear mapped by the KPCA method, hence it is difficult to diagnose how the fault happened.

该方法首先构造系统正常时的核主元模型，然后将新的数据映射到该核主元模型，对数据进行重构，重构的数据用多元统计指标T2或SPE判断监测过程是否超出了正常的控制限，若有故障发生，则监测程序将给于警告，提示过程出现了异常操作状况。

Under the assumption that a geometric process at the start point follows a lognormal distribution, the statistical inference problem for the geometric process is studied.

在假定几何过程的初始分布为对数正态分布的前提下，研究了几何过程的统计推断问题。

Quality control ; statistical process control ; multivariable control system ; Markov process

质量控制；统计过程控制；多变量控制系统； Markov过程

Statistical quality control; Process capability indiceses; Process quality control; Sampling inspection

统计质量控制；过程能力指数；工序质量控制；抽样检验

With the development of CAPP s application, the research of CAPP technology will be changed from self-generating of processing process chart s to the self-generating of statistical process chart s.

随着CAPP应用的不断发展，CAPP技术的研究自然从生产用工艺卡片的自动生成，向统计类卡片的自动生成转变。

Statistical process quality control is a useful and effective means in product quality control of mechanical process.

统计过程质量控制方法是机械加工中产品质量控制常用而有效的手段之一。

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。