Hierarchical Chinese document categorization was researched.
对层次化中文文档分类进行了研究。
Clustering analysis is an important research in data mining, and has been widely used in many fields, such as message filtering, document categorization, bioinformatics, etc.
聚类分析是数据挖掘中重要的研究课题，在信息过滤、资料自动分类、生物信息学等领域得到广泛应用。
Ontology is a description between the conception and the relation. The document categorization based on ontology is based upon the level of knowledge and semantic relations categorization indeed.
本体就是对概念和关系的描述，基于本体的文本分类就是基于知识层面和语义层次上的分类。
Ontology is a description between the conception and the relation. The document categorization based on ontology is based upon the level of knowledge and semantic relations categorization indeed.
本体就是对概念和关系的描述，基于本体的文本分类就是基于知识层面和语义层次上的分类。
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