In accordance with the prop tree diagram theory, adding the marking stations, the path-marking model in accurate way changes he annular structure speedway network into the tree structure.

准确路径识别模型是指依据图的支撑树理论，添加标识站，把环形路网结构变为树状结构的模型。

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This paper proposes a text classification method based on Cloud Theory and neural network structure decision tree.

提出一种基于云理论和神经网络构造决策树的文本分类方法。

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At last, the error recovery will be limited to the local network by the regional grouping and hierarchical tree structure.

最后，采用按区域分组和层次树的结构，将差错恢复的进行限制在了局部网络。

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