最小二乘逼近 meaning in Chinese
least squares approximation
Examples
- Computer programming of minimum squares approximating curves
最小二乘逼近曲线的计算机程序设计 - Least square approximation
最小二乘逼近 - This paper researchs into the problem on fitting the shell flight - time of anti - aircraft gun by interpolation and quadratic approximation
摘要用插值拟合和最小二乘逼近拟合方法对高炮射弹飞行时间拟合问题进行了研究。 - For h - d scattered data , local weighted least - squares fitting ( llsf ) methods for approximation and interpolation are respectively put forward and the latter is got by adjusting weight function in the former case , and the interpolating method is also used to construct hyper - surface models with the radial function . the problem of choosing weight function during local least square approximation is discussed and two good weight functions are given : one with a parameter , the other with no parameter . based on them
二、对非规则区域上分布的h - d数据，提出了散乱数据超曲面拟合的局部最小二乘逼近法。通过对局部最小二乘逼近的权因子作适当的改进，得到了拟合精度较高的局部最小二乘插值法，还用径向基函数构造了超曲面模型，找到了一种性质好带参数的权函数以及另一种有着普遍精度性质的不含参数的权函数，获得了较好的逼近效果。