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least squares approximation相关的网络例句

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Then the generalized moving least squares approximation is derived under adding the residual of high orders derivative.

从而,进一步导出了不仅要求近似函数还要求其任意阶导数在各节点处的误差的平方和最小的广义移动最小二乘近似。

And the solutions given in the paper is valuable for the execution of the surveying engineering. Furthermore, the least squares approximation is introduced as a calculating method, which is theoretically creative.

因此,本文对于工程测量的实施有借鉴作用;此外,从理论上来说,把最小二乘拟合数学模型引入问题的解算,有创新意义。

The numerical examples show that the modifying generalized moving least squares approximation has high accuracy not only for function value but also first or higher orders derivatives.

数值计算显示本文提供的方法关于函数值和各阶导数值都具有很高的精度。

In this paper, the least squares approximation method is introduced to predict the trend line of carrier movement. Then the yarn paths are analyzed systematically. Finally, the three kinds of unit cell, the interior cell, the surface cell and the corner cell, are established.

采用最小二乘法分段对携纱器的相关运动位置点进行拟合,得到编织过程中纱线的空间运动规律,在此基础上,获得的预制件结构的单胞模型,包含内部单胞,表面单胞和棱角单胞。

Then, on the basis of Atluri's work, a modified MLPG method is employed, in which the moving least squares approximation is used as a trial function and the Heaviside function is used as a test function of the weighted residual method.

然后基于Atluri等人的工作,采用移动最小二乘近似函数构造试函数,采用Heaviside函数作为加权残值法中的权函数,采用直接插值法施加本质边界条件而不采用罚函数法和拉格朗日乘子法。

For the sake of decrease of the computing time, modifying generalized moving least squares approximation is constructed under adding the residual of arbitrary high orders derivative only at the portion nodes.

为了降低计算工作量,构造了要求近似函数在全部节点处和任意阶导数在部分节点处误差的平方和最小的改进广义移动最小二乘近似。

For the sake of decrease the computing time, modifying generalized moving least squares approximation was constructed under adding the residual of high orders derivative only on the portion nodes.

为了降低计算工作量,本文构造了要求近似函数在全部节点处和任意阶导数在部分节点处误差的平方和最小的改进广义移动最小二乘近似。

For this purpose, the compactly supported radial basis function and the moving least squares approximation based ones are integrated into the aforementioned two global optimizers. As a result, two novel hybrid algorithms are introduced.

其次,为解决电磁场逆问题分析、计算中由于随机类优化算法需进行数以千计次电磁场的数值分析,以致计算时间和计算量难以满足工程分析实际要求的难题,本文将表面响应模型法引入电磁场逆问题的求解,研究了基于紧支径向基函数和基于移动最小二乘法的两种表面响应模型,并将其分别与改进的遗传算法和粒子群算法相结合,提出两种不同的混合快速全局优化算法。

The technique of perturbations constraint when applied to degree reduction of Bézier curves gives fairly well results This paper discusses why these kind of technique have limitation when applied to B-spline curves, and the least squares approximation approach is presented for reducing the degree of B-spline curves Examples comparing the new method with existing ones are illustrate

将扰动约束技术应用于B啨zier曲线的降阶给出了理想的结果讨论了将这类方法应用于B样条曲线降阶时结果不理想的原因,提出了采用最佳平方逼近技术对B样条曲线做降阶运算的方法;并用实例对该方法和基于扰动约束的降阶方法进行了比

Combining the modified variational principle functional with the Moving Least Squares approximation, the HBNM involves three types of independent variables, i.

杂交边界点法将修正变分原理与移动最小二乘法结合起来,涉及三类独立的场变量。

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推荐网络例句

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面,更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值,分为几个相等的区间作为横轴,并将各区间内所测定值依所出现的次数累积而成的面积,用柱子排起来的图形,也叫做柱状图。

You rap, you know we are not so good at rapping, huh?

你唱吧,你也知道我们并不那么擅长说唱,对吧?