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Methods of Feature Weighting Ascertainment Based on Text Categorization
Author(s): 
Pages: 86-89
Year: Issue:  3
Journal: JOURNAL OF GANSU SCIENCES

Keyword:  文本分类特征项权值确定;
Abstract: 文本表示中特征项的权值确定方法决定了文本特征的提取,在很大程度上影响了文本分类的准确率.通过系统总结常用的几种特征项权值的确定方法,并运一比较分析和研究,提出了一种性能较好的确定方法--据位定权函数,经实验验证据位定权函数确实能够有效地提高文本分类的准确性.
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