| 文本分类中的特征选取 |
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| 引用本文： | 刘丽珍,宋瀚涛.文本分类中的特征选取[J].计算机工程,2004,30(4):14-15,175. |
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| 作者姓名： | 刘丽珍 宋瀚涛 |
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| 作者单位： | 北京理工大学计算机系,北京,100081;北京理工大学计算机系,北京,100081 |
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| 摘 要： | 研究了文本分类学习中的特征选取，主要集中在大幅度降维的评估函数，因为高维的特征集对分类学习未必全是重要的和有用的。还介绍了分类的一些方法及其特点。
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| 关 键 词： | 文本分类 特征选取:降维 |
| 文章编号： | 1000-3428(2004)04-0014-02 |
Feature Selection in Text Categorization |
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| LIU Lizhen,SONG Hantao.Feature Selection in Text Categorization[J].Computer Engineering,2004,30(4):14-15,175. |
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| Authors: | LIU Lizhen SONG Hantao |
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| Abstract: | The paper studies feature selection in text categorization learning. It focuses on dimensionality reduction. Because high dimensionality feature sets are not all important and available in categorization learning. In the end some categorization methods and characteristics were introduced. |
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| Keywords: | Text categorization Feature selection Dimensionality reduction |
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