基于句子重要度的特征项权重计算方法

Feature Weighting Based on the Importance of Sentence

特征项权重的计算方法是文本分类的一个重要问题,计算方法的选择关系到分类的效果。使用句子的重要度对特征项权重进行计算,并与其他几种传统的权重计算方法进行了比较。该方法能够有效地提高分类的准确度。

The text categorization performance depends on the method of feature weighting. After analyzing conventional method in feature weighting, this paper uses the importance of sentence to calculate feature＇s weight. This approach can increase the accuracy of text categorization.