形式化的本体模型及其检验问题一直是人工智能中的研究热点。
Ontology model and ontology checking recently are still under hot discussion.
根据结构实体几何法（CSG）建模思想，采用层次化、结构化的建模方法，构建了机床本体（包括刀具）模型；
On the basis of the idea of CSG modeling method, the hierarchical structural modeling method was adopted to construct machine(including tool)model.
一个特定信息领域的用户模型是包含了用户信息的个性化领域本体和个性化信息需求的集合。
A user model in a special information domain is a set of personal domain ontology and personal information need which contain the user 's information.
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