The experiment shows that B-spline interpolation algorithm has better precision and stability than movable surface interpolation and weighed mean interpolation. 实践表明,非均匀B样条最小二乘内插算法比单点移动曲面拟合、多方位取点加权等内插算法有更高的精度和可靠性。
When evaluating the average of the road network serviceability, this paper put forward to using weighed geometric mean to calculate PQI. 在评价路网平均服务水平时,提出用加权几何平均值来计算路面使用性能综合评价指标PQI;
The weighed haar wavelet method has smaller mean relative error than previous containment join methods under the same space budget. 在相同的空间限制下,权重哈尔小波估计法比先前的XML包含连接估计法具有更小的估计误差。