principal curve meaning in English
主曲线
助线
Examples
- The high dimensional data can be projected to a curve and the accuracy of classification will be improved . a simplified algorithm of nonlinear principal curves called nonlinear principal poly line is developed and its effect for feature extraction of hyperspectral data is researched
研究了高光谱图像数据的非线性主曲线构造算法，该方法是对主成分分析的一种非线性扩展，用以把原始数据投影到空间曲线上，以便进一步对地物进行精确分类。 - In this paper , based on the notion of passing smoothly through the " middle " of data and analyzing sketch curve ' s character , i developed the concept of principal curve of sketch curve , and provide an adaptive algorithm by polygonal line for approximating principal curve
本文分析了徒手画曲线的性质，基于从徒手画曲线数据点“中间”穿过的思想，运用一乘距离，提出了徒手画曲线的主曲线( principalcurve )的概念，并提供了一种搜索该主曲线的折线逼近算法，自适应地得到主曲线。 - The experimental results show that the gained curve using our algorithm is smooth and can capture original curve ' s character , remove the noise , represent drawer ' s intention . moreover , the points are relatively fewer that confirm the principal curve . all these suggested the practicality of the adaptive method in this paper
通过大量的试验证明，本文提供的算法得到的主曲线能抓住原徒手画曲线的特征，光滑流畅，去除了原曲线的噪声，反应绘图的愿望，并且确定该主曲线的数据点较少，充分体现了本文徒手画曲线自适应方法的实用性。