同时，这些算法几乎都是在单层次上做一次终结式分类，没有考虑到文本类别的逐层分类。
Meanwhile, almost all of these algorithms are built on single hierarchical platform, without considering the hierarchies of text category.
同时，这些算法几乎都是在单层次上做一次终结式分类，没有考虑到文本类别的逐层分类。
Meanwhile, almost all of these algorithms are built on single hierarchical platform, without considering the hierarchies of text category.
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