... From Feature Selection 在功能选择 Feature Selection And Extraction 特征选择和提取 feature selection process 特征选择过程 ...
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feature extraction and selection 特征提取与选择 ; 特征提取与选取
The essential technologies in process of text categoriaztin based on vector space model in present mainly include pre-process, participle technology, weighting computation, feature selection and extraction and dimension descending techonogy.
当前，文本分类主要采用的是基于统计的向量空间模型，涉及文本预处理、中文分词、特征选取、特征权重计算、分类算法、分类性能测评等多个过程。
参考来源 - 基于特征权重算法的文本分类研究·2,447,543篇论文数据，部分数据来源于NoteExpress
Feature selection and feature extraction are common methods for dimensionality reduction.
特征选择和特征抽取是维数约简常用的两种方法。
Defect feature extraction and selection techniques were studied regarding the characteristics of X-ray detection images of carbon product.
针对炭素制品X射线检测图像的特点，对缺陷特征提取与选择技术进行了研究。
The techniques of feature extraction, feature selection and design of classifier for passive sonar target recognition are reviewed.
文章对被动声纳目标识别的特征提取、特征选择和分类器设计方面进行了回顾。
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