多分类支持向量机实现方法的分析比较：一对一、一对多和DAG的对比，比较专业，-more SVM method of comparison : one-to-one, one-to-many and DAG contrast, more professional-huh

多文本分类，有数据集，中文文本，支持向量机的-Text classification, data sets, the Chinese text, the support vector machine (SVM)