计算机工程与应用 ›› 2014, Vol. 50 ›› Issue (14): 185-188.

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基于最小分类错误率和Parzen窗的降维方法

贺邓超,郝文宁,陈  刚,靳大尉   

  1. 解放军理工大学 工程兵工程学院,南京 210007
  • 出版日期:2014-07-15 发布日期:2014-08-04

Dimensionality reduction method based on minimum classification error and Parzen window

HE Dengchao, HAO Wenning, CHEN Gang, JIN Dawei   

  1. Engineering Institute of Corps of Engineers, PLA University of Science & Technology, Nanjing 210007, China
  • Online:2014-07-15 Published:2014-08-04

摘要: 提出了一种基于最小分类错误率和Parzen窗的降维方法,利用Parzen窗估计数据的概率密度分布;通过计算各特征维度下的分类错误率,判断该特征维度对目标分类的贡献度;依据贡献度大小进行特征维度选择从而达到降维的目的。

关键词: Parzen窗, 降维, 概率密度, 特征选择

Abstract: A dimensionality reduction method based on minimum classification error and Parzen window is proposed, which firstly uses Parzen window to estimate the probability density of data, then calculates the contribution for classification of each feature dimension with the classification error, and selects the feature dimension according to the contribution for classification, in such a way as to achieve the intention of dimensionality reduction.

Key words: Parzen window, dimensionality reduction, density probability, feature selection