...特征降维；散度差；KNN分类器 [gap=917]Key words:text classification;feature selection;feature extraction;feature reduction;scatter difference;KNN classifier ..
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non-linear feature reduction 非线性特征降维
feature dimension reduction 特征降维
noise reduction feature 减弱噪音的装置
feature vectors reduction 特征向量简化
feature template reduction 特征模板约简
feature dimensional reduction 特征压缩
feature extraction and reduction 特征提取与约简
Feature reduction can generally fall into feature extraction or feature selection.
特征约简可通过特征提取或特征选择实现。
参考来源 - 高光谱遥感数据特征约简技术研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Feature reduction method involves feature selection and feature extraction.
降维的主要方法是特征选择和特征提取。
Feature reduction can generally fall into feature extraction or feature selection.
特征约简可通过特征提取或特征选择实现。
Therefore, it is necessary to perform feature reduction for every decision of the shot boundary.
因此，有必要对每一个镜头检测决策进行特征约简。
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