Sub-classification and stage differentiation are needed in the setting of treatment purposes.
治疗目的的设定需要细分类别，区别阶段；
This article tries to analyze the following aspects such as connotation of similarity, sub-classification and cognitive way of icon.
本文拟从肖似性的含义、图像符号的再分类以及图像符号的认知方式等三个方面给以尝试性的论述。
If the distribution of training samples only had little influence on the sub-classification, the combined classifiers would have stable performances.
当子分类器均受训练样本分布影响较小，组合结果也具有较好的稳定性。
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