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均值函数
相关语句
  mean function
     Both the mean function m(x)=E(Y|X=x) and the variance function σ(x) are unknown.
     均值函数m(x) =E(Y|X =x)和方差函数σ(x)二者未知 .
短句来源
     This method can also be used to determine the mean function of time series.
     该方法也可用于确定时间序列的均值函数 (趋势项 )
短句来源
     The forecast accuracy of neural network can be increased by inputting different weighted value in mean function, according to the contributions of the time sequence data to forecast values.
     依据时间序列数据的新旧程度对预测值贡献的大小, 通过均值函数赋给输入数据不同的权值系数, 提高了神经网络的预测精度。
短句来源
     The prediction accuracy of neural network can be increased, by inputting different weighted value using mean function, according to the contributions of the time sequence data to prediction values.
     依据时间序列数据的新旧程度对预测值贡献的大小,通过均值函数赋给输入数据不同的权值系数,提高神经网络的预测精度。
短句来源
     Wiht making full use of the information contained in data,the mean function,variance matrix function and correlation coefficient matrix function of multi-dimensional correlation coefficient series can be obtained by the present method.
     通过对时域的全程分析,能够充分利用样本信息对相关系数序列的均值函数,协方差矩阵函数和相关系数矩阵函数进行估计。
短句来源
更多       
  mean value function
     Research for Trend Forecast in Neural Network of New Information Weighted with Mean Value Function
     基于均值函数新息加权的神经网络趋势预测的方法研究
短句来源
     Mean value function of interspike interval (ISI) for describing the variation of ISIs during observation time,variation coefficient function for measuring dispersion and normalized auto-covariance function (NACVF) for describing the auto-correlation property were suggested.
     用放电间隔(ISI)的均值函数描述取值的集中位置随时间变化的情况,用ISI的变异系数函数描述放电过程离散程度的变化,用标准化自协方差函数(NACVF)描述放电过程的自相关性质.
短句来源
     In the applications of the state forecast of rotating machine sets in current neural network, there are some defects in the insufficient emphasis on the new data. A new kind of forecast method based on neural network of new information weighted with mean value function is put forward in order to make up the defects.
     当前旋转机组状态预测神经网络的应用中, 存在着对新数据强调不足的缺陷, 为了弥补原有的神经网络存在的缺陷, 提出了一种新的神经网络预测方法, 即基于均值函数新息加权的神经网络预测方法。
短句来源
     In a prediction of working condition with neural network for rotating machine, there are some defects in the insufficient emphasis to new data. A new kind of prediction method based on neural network with weighted new information using mean value function is put forward, in order to make up the defects.
     在面向旋转机械的神经网络工作状态预测中,存在着对新数据强调不足的缺陷,为了弥补原有的神经网络存在的缺陷,提出一种新的神经网络预测方法,即基于均值函数新息加权的神经网络预测方法。
短句来源
  “均值函数”译为未确定词的双语例句
     It finds the solution of the lifting process Y(t), movement velocity d/(dt)Y(t) and acceleration process(d2)/(dt2)Y(t) of the pump valve. It also presents their average value function. This is the basic work for studying the pump valve's failure machanism and improving the design to increase the lifetime and performance of the pump valve.
     本文建立了往复泵泵阀运动规律的随机微分方程,求解了泵阀的升高过程Y(t)和泵阀的运动速度d/dtY(t)及加速度d~2/dt~2Y(t)过程,给出了它们的均值函数,这是研究泵阀的破坏机理进而改进设计提高泵阀的使用寿命和工作性能的基础性工作。
短句来源
     Let {X(t),T1≤t≤T2 } be a seperable measurable Gaussian process with mean zero and differentiable covariance function. For u ↑+∞,this paper discusses sajourn limiting theorem of process above Level u.
     设{X(t),T1≤t≤T2}是可分、可测的高斯过时程,均值函数为零,而协方差函数г(s,t)=EX(s)X(t)具有连续一阶编导.对于水平u↑+∞,本文讨论X(t)在u之上的逗留极限定理,
短句来源
     Thus the spectrum density of the correlation coefficient stationary process can be obtained by Fourier transform,shorttime Fourier transform or wavelet transform. The formulas for calculating the response of a linear system are derived when the input is a correlation coefficient stationary signal. In addition, the concepts of trend component spectrum density and random component spectrum density in random processes are also presented herein.
     该方法首先在时域进行全程分析,得到相关系数平稳过程的均值函数、方差函数和相关系数函数,然后可以对其进行傅里叶变换、短时傅里叶变换或小波变换,给出相关系数平稳过程的谱密度,同时提出了随机项谱密度和趋势项谱密度的概念。
短句来源
     In nonparametric models or semi-parametric models,the estimates of unknown mean functions or condition mean of unknown functions are always considered either under independent data or under dependent data.
     不论数据是独立的还是相依的,在非参数和半参数模型中,都涉及到对未知均值函数或者对某函数的未知条件期望的估计.
短句来源
     Based on the data type of software testing,a model of software safety with change-point under imperfect-software-debugging is deduced,and the software safety model with many kinds of error types is given.
     基于软件测试数据,提出了一种具有变点的非完全排错软件安全性模型,并给出了具有多种错误类型时的软件安全性均值函数模型。
短句来源
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  mean function
The results of the comparisons are then combined using a generalized mean function to produce a single number which is compared to a threshold as in the case of a perceptron consisting of a linear combiner with hard limiting function.
      
Exact bahadur efficiencies of tests for superadditivity of the mean function of a non-homogeneous poisson process
      
The mean function of the elbow improved from 73° to 112°.
      
Preoperatively, the mean knee score was 34.3 points and the mean function score was 42.2 points.
      
-th record values subject to (r + 1)-th record values, record mean function, from a distribution of discrete type.
      
更多          
  mean value function
Consider a non-homogeneous Poisson process,N(t), with mean value functionΛ(t) and intensity functionsΛ(t).
      
A density functionf(x),x∈Rn is said to bepiecewise smooth if for eachx∈Rn, the mean value function
      
In this example, the mean value function tn has jumps at n = 51 and n = 151.
      


The author has Put forward a method in the ldeal system designof the machiuery transmission.In the first Part of the article wehare dealt with recurrent disturhance in the machinery transmission system.The second Part is about the exPression of Average stutistics. values for stationary chance variable and its terms concerned.The third Pant is devoted to the conputation of the best Transfer locus, and the machine tool system is cited as an instance.Finally, we also have discussed the confidence of the best Transfer...

The author has Put forward a method in the ldeal system designof the machiuery transmission.In the first Part of the article wehare dealt with recurrent disturhance in the machinery transmission system.The second Part is about the exPression of Average stutistics. values for stationary chance variable and its terms concerned.The third Pant is devoted to the conputation of the best Transfer locus, and the machine tool system is cited as an instance.Finally, we also have discussed the confidence of the best Transfer locus. )

(本文作者提出了设计机械传动理想系统的方法。) (文章的第一部份阐述了机械传动系统的周期扰动。) (第二部分是有关平稳随机变量均值的函数表达式及其有关术语。) (第三部份是研究机械传动系统最佳传递函数的计算。并引证了机床系统的实例。 (最后,讨论了最佳传运函数的置信度。)

The signal analysis methods based on the statistical theory of stochastic point processes for unit activity of neurons were described.Mean value function of interspike interval (ISI) for describing the variation of ISIs during observation time,variation coefficient function for measuring dispersion and normalized auto-covariance function (NACVF) for describing the auto-correlation property were suggested.The relation of NACVF and expectation density was given by means of Kronecker delta function.Comparisons...

The signal analysis methods based on the statistical theory of stochastic point processes for unit activity of neurons were described.Mean value function of interspike interval (ISI) for describing the variation of ISIs during observation time,variation coefficient function for measuring dispersion and normalized auto-covariance function (NACVF) for describing the auto-correlation property were suggested.The relation of NACVF and expectation density was given by means of Kronecker delta function.Comparisons of the methods suggested and the corresponding classical methods were discussed with the examples of real neural spike trains.

本文结合随机点过程的统计理论和数字信号分析原理探讨了几种神经元放电活动的信号分析方法.用放电间隔(ISI)的均值函数描述取值的集中位置随时间变化的情况,用ISI的变异系数函数描述放电过程离散程度的变化,用标准化自协方差函数(NACVF)描述放电过程的自相关性质.给出NACVF了与期望密度的关系式.并用实例将这些方法与传统方法作之对比.

This paper builds up a stochastic process hitch degree and studies thevariance function and the mean function by processing a graphic analysis of the largenumber of spot date on computers,then provides the approximation broken line methodfor the variance curve of the remnant life forecast and the extrapolation method for thetrend mean curve. Both the methods can be used for forecasting the remnsnt life of theball bearings. It has very large economic value that this kinds of remnant life forecastmethods are...

This paper builds up a stochastic process hitch degree and studies thevariance function and the mean function by processing a graphic analysis of the largenumber of spot date on computers,then provides the approximation broken line methodfor the variance curve of the remnant life forecast and the extrapolation method for thetrend mean curve. Both the methods can be used for forecasting the remnsnt life of theball bearings. It has very large economic value that this kinds of remnant life forecastmethods are used in equipment maintain in factoried.

本文通过在计算机上用作图的方法,对大量轴承故障等级发展现场数据的分析,建立了球轴承故障等级A_(dB)发展的随机过程数学模型;研究该随机过程的均值函数和均方差函数,提出了电动机球轴承剩余寿命预估的方差曲线的近似折线法;以及均值曲线趋势外推法,实际应用证明,这两种方法均可用于预估球轴承利余使用寿命。这种剩余寿命预估的技术用于工厂设备维护,具有较大的经济价值。

 
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