期刊文献+

一种多元图图形特征向球面坐标映射的可视化方法 被引量:2

A novel methd for mapping multivariate graphical feature to spherical coordinate
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摘要 提出一种将二维多元图图形特征映射到三维球面坐标的可视化方法。提取二维多元图中雷达图的面积特征、融合矢量的长度和角度特征,通过球面坐标映射将其有机融合到3D球体空间。对Iris数据集的实验结果表明,该方法具有较高的灵活性,能有力揭示数据结构。 A visualization method is proposed based on mapping two-dimensional graphical feature into three-dimensional space by spherical coordinate. The projection includes two processes. Firstly, three graphical features of star plot are extracted, that are the area, the length and the angle of complex vector. Then, these features as input variables are mapped to a hypothetical sphere in three-dimension space. Results of iris data indicate that the proposed method has higher flexibility and has the merit of exposing the structure of data set.
出处 《燕山大学学报》 CAS 2010年第2期115-118,共4页 Journal of Yanshan University
基金 国家自然科学基金资助项目(60904100)
关键词 雷达图 图形特征 球面映射 可视化 star plot graphical feature spherical mapping visualization
作者简介 宋佳霖(1970-),女,江苏宜兴人,实验师,主要研究方向为中医经络诊断、可视化模式识别理论及其应用; 通信作者:洪文学(1953-),男,黑龙江依安人,教授,博士生导师,主要研究方向为信息融合、可视化模式识别和中医工程学,Email:hongwx@ysu.edu.cn。
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