文件自动分类系统Delphi 关键词:文件分类；向量空间模型；特征项的提取；特征项的选择 [gap=1155]Keywords: File Classification;Vector Space Model; Feature Selection; Feature Extraction
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在这个模型中，有两个主要影响描述准确度的因素：一个是特征项的选择，一个是特征项的权重计算方式。
In this model, there are two factors affecting the description's precision: one is the choice of the feature words; another is the method of weight computing.
特征选择是数据处理的一项重要内容。
一项最新的研究显示，你选择的运动方式透露出来的个性特征比你想象的要多。
Now a new study has revealed that your choice of sport says more about you than you could possibly have imagined.
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