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| 一种新颖的特征提取方法在文本分类器中的应用 | |
| 引用本文： | 许建明,杨磊,黄同成. 一种新颖的特征提取方法在文本分类器中的应用[J]. 邵阳学院学报(自然科学版), 2008, 5(1): 37-39 |
| 作者姓名： | 许建明 杨磊 黄同成 |
| 作者单位： | 1. 湖南大学,计算机与通信学院,湖南,长沙,410082;邵阳学院,信息与电气工程系,湖南,邵阳,422000 2. 湖南大学,计算机与通信学院,湖南,长沙,410082 3. 邵阳学院,信息与电气工程系,湖南,邵阳,422000 |
| 摘 要： | 自动文本分类中类别特征提取是文本分类中的关键，传统特征提取算法存在特征提取不够准确，进而导致分类精度不高．为解决此问题，本文提出了一种有效的特征提取方法一基于滑动窗口的特征提取方法，用来构成文本分类的模型，该方法能扩大特征的提取范围．实验表明，改进后的分类模型可以有效地提高文本的分类精度。 |
| 关 键 词： | 文本分类 特征提取 滑动窗口 |
| 文章编号： | 1672-7010(2008)01-0037-03 |
| 修稿时间： | 2007-12-12 |
A New Feature Selection Algorithm in Text Categorization |
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| XU Jian-ming,YANG Lei,HUANG Tong-cheng. A New Feature Selection Algorithm in Text Categorization[J]. Journal of Shaoyang University(Natural Science Edition), 2008, 5(1): 37-39 | |
| Authors: | XU Jian-ming YANG Lei HUANG Tong-cheng |
| Affiliation: | XU Jian-ming, YANG Lei, HUANG Tong-cheng (1.School of Computer and Communication, Hunan University, Changsha, Hunan 410082,China; 2.Department of lnformation and Electrical Engineering, Shaoyang, Hunan 422000,China) |
| Abstract: | Feature selection is one of the key points in the automatic text categorization. Still there are many disadvantages in traditional feature selection algorithms such as low precision of classification etc. Based on the idea of sliding window, the paper introduces a new method of feature selection into the text categorization module for text categorization, in which the range of feature selection is enlarged. Experiments show that the revised text categorization module improves the precision of text categorization. |
| Keywords: | Text Categorization Feature selection Sliding window |
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