高精度逼近 highly precise approach
This paper has also given the calculate method of approximating precision of B-spline surface.
文中还给出了B样条曲面逼近精度的计算方法。
参考来源 - 自由曲面的B样条拟合In this paper, we regard the significance of attributes defined from the approximation quality with respect to the partition and condition attributes set as heuristic information, and introduce the heuristic information into genetic algorithm based on optimizing initial population.
为了获得决策系统中属性的极小相对约简,本文将决策表中相对于每个条件属性的集合和划分的粗糙逼近精度作为衡量属性重要程度的准则,并以此作为启发式信息引入遗传算法,提出了一种在优化初始种群的基础上提高算法性能的启发式遗传算法。
参考来源 - 基于改进启发式遗传算法的属性约简方法·2,447,543篇论文数据，部分数据来源于NoteExpress
运用双重鲍尔点附近的两段曲线来逼近给定的两段直线，其逼近精度为3阶。
Using two curves around the double Ball point to approach two given lines with 3 order precision is realized, which solves the problem of double straight line synthesis.
然后分析了多结点样条插值方法的逼近精度、正则性、插值核函数的频域特性。
Then the accuracy of approximation, regularity of many-knot splines interpolation method and frequency property of the interpolation kernel are worked out for comparison.
利用应力佳点，可以在不增加计算时间与存贮量的情况下显著提高应力逼近精度。
When this result is applied to numerical computation the accuracy of the stress approximation can be greatly improved, and the time of computation and the memory requiment will not be increased.
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