| 基于VSM模型的动态文本分类器的设计 |
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| 引用本文： | 章兰,杨季文,江浩. 基于VSM模型的动态文本分类器的设计[J]. 河海大学常州分校学报, 2004, 18(2): 39-43 |
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| 作者姓名： | 章兰 杨季文 江浩 |
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| 作者单位： | 苏州大学,计算机科学与技术学院,江苏,苏州,215006 |
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| 摘 要： | 设计了一种基于VSM模型的动态文本分类器，它能针对文本的不同类别建立不同的特征子空间，各特征子空间之间相互独立，同时能将文本分类中常用的2个评估指标召回率和精确率转化为正确分类率和错分率；考察了特征子空间的维数和判定界值对这2个指标的影响．该动态文本分类器能对用户输入的文本流进行动态分类．
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| 关 键 词： | VSM模型 特征子空间 动态文本分类 特征词 |
| 文章编号： | 1009-1130(2004)02-0039-05 |
| 修稿时间： | 2004-01-05 |
Design of A Dynamic Text Classifier Based On VSM Model |
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| ZHANG Lan,YANG Ji- wen,JIANG Hao. Design of A Dynamic Text Classifier Based On VSM Model[J]. Journal of Hohai University Changzhou, 2004, 18(2): 39-43 |
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| Authors: | ZHANG Lan YANG Ji- wen JIANG Hao |
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| Abstract: | In this paper a dynamic text classifier based on VSM is designed,it provides different classes with different feature sub- spaces. Every feature sub- space is independent of another, and can transform the two comnonly- used performance measures- recalling rate and precision rate to correct classification rate and incorrect classification rate at the same time. Also it can review the dimension of the feature sub- space and boundary value influence on these performance measures. The dynamic text classifier can categorize the user input stream of Chinese text dynamically. |
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| Keywords: | VSM model feature sub- space dynamic text categorization feature words |
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