查询词典 probability density

Based on the idea of tolerance-robustness design,considering the fuzziness of product quality,and taking the ratio of the variance of probability density function of deviation distribution for the close-loop to the probability of high-quality product as design objectives,the objective function of the loss of quality robustness for this tolerance optimization design was established.

在目标函数中，加工成本是优化的一个重要目标，即寻求总加工成本的最小化，同时还要使设计的产品质量稳健性好，即寻求产品质量稳健性损失成本的最小化。

On the basis of implementing statistical analysis to the parameters data of each logging response feature,the paper determined the probability density function and subordinate functions and gave math model used for lithologic identification by vulcanite fuzzy probability.

在对各测井响应特征参数数据进行统计分析的基础上，确定了模糊概率的概率密度函数和隶属函数，并给出了用于火山岩模糊概率识别岩性的数学模型。

The content involves Digital Filter, Auto Correlation, Cross Correlation, mean and standard deviation, probability density and probability distribution statistic, as well as Auto Power Spectrum based on Fast Flourier Transfer, Correct Power Spectrum, Cestrum and Frequency Response. The Short-time Flourier Transfer and Wavelet Transfer are included in the analysis program.

具体内容包括：数字滤波、时域加窗、自相关计算与互相关处理、均值和方差计算、概率密度和概率分布统计，快速傅立叶变换基础上的自功率谱、互功率谱、频率响应函数、相关函数、倒频谱分析；基于短时傅立叶分析的联合时频分析、小波变换等。

This paper uses mixture density networks to forecast the time-varying conditional density values of financial time series, and puts forth a new numerical algorithm to calculate Expected Shortfall. The application in Hong Kong Hangseng index approves that Value-at-Risk at high probability levels is accurate, and that it also has good forecasting ability in fluctuation. MDNs can effectively describe the empirical distribution of returns and the volatility mechanism, and is a new model for measuring financial market risk.

基于混合密度网络模型估计金融时间序列的时变条件密度，提出采用数值模拟方法计算Expected Shortfall的新途径，对香港恒生指数的实证研究表明，VaR的预测精度在高端分位点较好，模型评估指标反映出预测效果良好，混合密度网络可以有效地描述收益的经验分布统计特征和波动规律，是一种有效的金融市场风险测量模型。

On this foundation, the followingfew problems are resolved. Firstly, we have a kinematic density formula for pairs of needles by using thekinematic density formula for pairs of oriented lines. The geometric probability thatthe random pairs of needles intersect at a point in convex body K is considered.

在此基础上，重点解决了以下几个问题：首先利用R~2上有向直线偶的运动不变密度公式，得到了针偶的运动不变密度公式，考虑了针偶与凸体K相交且针偶的交点属于K的这样一个几何概率问题。

In the sequential density evolution analysis, we obtain the calculation expression of information density evolution by analyzing the probability measure based on the log likelihood ratio measurement.

在连续密度进化中，使用基于对数似然比量度上的概率测度进行分析，获得了消息密度进化的计算表达式。

In the method, the probability density function of a stochastic process is described from the spectral density function of the stochastic process.

根据S。 O。 Rice对随机过程峰的一维概率分布的研究方法，扩展到对随机过程峰的联合概率密度的分析。

In the method,the probability density function of a stochastic process is described from the spectral density function of the stochastic process.S.O.

根据S.O.Rice对随机过程峰的一维概率分布的研究方法，扩展到对随机过程峰的联合概率密度的分析。

The binned kernel density estimators were exploited to estimate the probability density function of background intensity in training sequence.

该模型采用分箱核密度估计算法从训练图像序列中得到背景的密度函数。

Secondly, we improve Minimum Semi-variance Model with fitting the joint probability density function of rate of return between futures and spot prices based on wavelet density estimation method for improving goodness of fit for the first time.

其次，为提高估计的精度，对最小半方差模型提出了进一步改进，首次引入小波密度估计的方法拟合期现货收益率的联合密度函数，并与经验和正态核密度估计方法进行了比较。

He tendered his resignation to the Prime Minister.

他向首相递了辞呈。不适合

International economy and trade,Nanking 210044

国际经济与贸易，南京 210044