引入相似度，给出了伪距离的定义，确定了二者之间的关系。
By introducing similarity degree, the definition of pseudo-distance is proposed, and the relationship between them title determined.
通过对模糊c均值算法聚类特性的分析，引入了约束函数及模式相似度的概念，提出了改进的FCM算法。
With the clustering feature analyzed, restrained function and pattern similarity are introduced. Then the algorithm of improved FCM is presented.
本文使用决策树状态捆绑方法来缓解这一问题，同时引入了一种以口形相似度为基础的决策树视频问题设计方法。
Decision trees are used to solve this problem, and at the same time, a method to create visual question set is introduced based on the similarity of mouth shapes.
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