查询词典 geometrical mean

In the feature extraction stage, methods of extracting geometrical and statistics are introduced in this paper, which include geometrical extracting method, singular value decomposition, linear discriminated analysis, discrete cosines transform, feature extraction based on wavelet analysis.

重点介绍了本论文所使用的主分量分析和定点独立分量分析的方法，定点独立分量分析是一种基于高阶统计信息的特征提取方法，收敛速度快克服了一般ICA收敛慢的缺点。

Some applied examples show that the differential relationship not only contains fundamental content in geometrical optics, such as the three laws of geometrical optics, imaging formula of single spheric face, but is another form of differential equation of the light ray.

通过应用示例可见，此微分关系式包含了几何光学的3个实验定律和球面镜成像公式等，而且是光线方程的另一种表达形式。

Moreover, sum up the modeling method and step for tap;The paper focus on the tapping speciality of screw tap, and the influence between geometrical parameters and cutting performance, targeting the minimum tapping and axial force, the optimum design of geometrical parameters is done, especially the flute shape.

论文重点研究了螺旋槽丝锥的攻丝特性及其几何参数对切削性能的影响，基于最优设计原理建立了攻丝扭矩最小及轴向力为零的双目标非线性优化模型，并利用Matlab软件，对螺旋槽丝锥的几何参数，尤其是丝锥容屑槽槽形，进行了优化，根据优化结果建立了丝锥的三维CAD造型。

Beaming with smiles, two hand palms wipe mutually, mean"expect amusedly";The face concentrate on, mean"Be consider";Double the elbow clips tightly, wiping a palm in a short while, in a short while the back of the hand of , mean"cold";Double the palm descend to rub to wipe, the meaning BE"finish", also mean"I ignored this matter any further" in English nation.

面带微笑，两手手掌相擦，表示"愉快地期待"；面部聚精会神，表示"在思考"；双肘紧夹，一会儿擦擦手掌，一会儿摩摩手背，表示"冷"；双掌上下搓擦，意思是"完了"，在英语国家中也表示"我再也不管这件事了"。

Finishing calculation of mean value, standard deviation, skewness, kurtosis of Beta distribution.(2) Fitting parameters of many kinds of typical distribution and using residual deviation to evaluate fitting precision.(3) Using Beta distribution as an agreed indication distribution applied to many kinds of practical photoelectric measurement distributions.(4) Deriving theory formula of Bayes point estimation about Beta distribution parameters and mean value and standard deviation on the condition of mean square error loss function and supposed the prior distribution is uniform distribution.(5) Generating MCMC sample from post distribution by the method of Gibbs sample algorithm. Calculating bayes point estimation from sample on the condition of mean square error loss function. Calculating confidence interval by an approximate method to complete interval estimation.

本文的主要工作有：(1)解决了Beta分布参数a和b的精确计算以及均值、标准差、偏度、峰度的计算问题；(2)拟合出10余种典型分布的Beta分布的两个参数，并且采用剩余标准差评价该Beta分布的拟合精度；(3)对多种典型的光学与光电测量系统的测量分布进行了Beta分布统示表示；(4)在假设先验分布为均匀分布前提下，得到参数a和b以及均值μ和标准差σ在均方误差损失函数下的贝叶斯点估计理论计算公式；(5)利用直接抽样的Gibbs抽样算法，从后验分布中产生MCMC样本，从样本直接计算均方误差损失函数下的贝叶斯点估计，并使用一种近似方法计算其置信区间，完成区间估计。

In particular, Stolarsky mean are generalized from two variables to n variables. Moreover,we make ωi become weight function to diversity the kinds of mean function. For the mean family, we discuss mean family with single parameter or multi-parameter .

此外还通过改变权w_i，使之成为权函数，从而使n元平均函数的形式多样化，在n元平均族中给出了单参数和多参数平均族，并讨论了具体的单参数的幂平均族和指数平均族，多参数的Dresher平均以及由此构造的另一种形式的双参数平均族。

Runnin down to the station catch the first mail train I see Runnin down to the station catch that old first mail train I see I got the blues bout Miss So and So and the child got the blues bout me And I'm leavin this morning with my arm fold up and cryin And I'm leaving this morning with my arm fold up and cryin I ahte to leave my baby but she treats me so unkind I got mean things I got mean things on my mind I got mean things I got mean things all on my mind I got to leave my baby cause she treats me so unkind 1When You got a Good Friend ?

Runnin到站赶上第一邮政列车喔 Runnin到站副渔获物，旧的第一个邮件列车喔我得到了布鲁斯回合小姐某某和孩子蓝调回合箱我今天上午leavin 与我的胳膊折叠和哭泣我今天上午离开与我的胳膊折叠和哭泣余ahte离开我的孩子但她对待我这么不客气我指的我的意思的事情，我的脑海我指的我的意思的东西都在我心中我离开我的孩子导致她对待我这么不客气 1When你有一个好朋友？

Based on the existence of the " mean point s"in Differential mean value Theorem,This paper futher studies the problem of the number of the " mean point s" in Differential mean value Theorem.

在微分中值定理"中值点"存在的基础上，进一步研究微分中值定理"中值点"的个数问题。

We gain the distributing instance as a whole by the spatial analyse of the daily、 mensal and annual precipitation.Then, we adopt mean error、 mean absolute error、 mean relative error、 and the root mean squared interpolation error and the correlative coefficient as the determinant standard of interpolation effect. The results show that the mensal precipitation effect of SIA is the best, and the daily precipitation effect is worse reversely.

然后，对年降水量、月降水量以及日降水量的SIA结果采用平均误差、平均绝对误差、平均相对误差、插值平均误差平方和的平方根误差以及相关系数作为判定插值效果的标准，并得到以下结果：月降水量的SIA效果最好，日降水的相对较差。

Meanwhile, 2-D spectrum and the corresponding parameters of irregular wave transformation (predominant wave direction and mean wave direction, peak frequency and peak spectrum density, spectrum width, mean period, mean wave length, mean wave crest length and 3-D index and so on)、 1-D frequency spectrum and the corresponding parameters and numerical results of wave height、 wave direction of regular wave transformation are offered.

提供不规则波传播变形二维谱及其谱参数(主波向及平均波向、峰频及谱峰值、谱宽度、平均周期、平均波长、平均波峰长度及三维性指标等等)，不规则波一维频率谱及其谱参数和规则波变形的波高、波向模拟值。

Listen,point and check your answers.

听，指出并且检查你的答案。

Warming needle is one of effective treatment methods for knee arthralgia aggravated by cold,and it is simple,safety,so it should be developed in clinical acupuncture and moxibustion extensively.

但以本院科针灸门诊在2005年1月—2006年6月期间共收治膝痛患者100余例，经过临床的诊断后，其中施以温针治疗的48例，疗效显著，报道如下。1临床资料本组病例48