中文说明：
有向无环图支持向量(DAG-SVMS)多类分类方法，是一种新的多类分类方法。该方法采用了最小超球体类包含作为层次分类依据。试验结果表明,采用该方法进行多类分类,跟已有的分类方法相比有更高的分类精度。
English Description：
Directed acyclic graph support vector (dag-svms) multi class classification method is a new multi class classification method. This method uses the minimum hypersphere class inclusion as the basis of hierarchical classification. The experimental results show that this method has higher classification accuracy than the existing classification methods