同时，S -TFIDF算法保持了TFIDF算法的高运行效率，适合大规模的文本分类任务。
Moreover, S-TFIDF algorithm is as efficient as TFIDF algorithm, which implies it is competent for large scale text categorization task.
特征提取因其方法简单、计算速度快，适合用来处理大规模的文本数据，在文本分类中得到了广泛的应用。
Feature selection has been effectively applied in text classification, because of its simplicity, fast calculation, suitable for handling large-scale text data.
特征提取因其方法简单、计算速度快，适合用来处理大规模的文本数据，在文本分类中得到了广泛的应用。
Feature selection has been effectively applied in text classification, because of its simplicity, fast calculation, suitable for handling large-scale text data.
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