【Key words】 support vector machine （SVM）； decision tree； multi-category classification；
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Directed acyclic graph support vector (DAG - SVMS) multi - category classification methods, is a new multi - category classification methods.
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。
Produce an algorithm based on encoding binary tree and supporting vector multi-category classification algorithm.
给出了一种基于编码二叉树的支持向量的多类分类算法。
In this paper, learning algorithm for solving multi-category classification using convex upper losses is studied.
本文研究基于凸风险最小化方法的多分类贪婪算法，推广二分类的学习问题到多分类的情形。
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