bottom/top layer
- 底层/顶层
bottom/top layer
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The system extends the Mediation method for Information Integration to the field of Knowledge Integration and there are three layers in this system which includes from bottom to top Information Collection Layer , Knowledge Mediation Layer and User Interface Layer .
该系统将信息集成的Mediation方法扩展到知识集成范围,整个系统分为三层,包括信息抽取层、知识中介层和用户接口层。
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The chief content includes the following four aspects : ( 1 ) Proposed the ontology-based domain knowledge base construction and semantic retrieval framework ( OKB & SR ) The framework is divided into three layers from bottom to top : data layer , ontology integration layer and application layer .
主要研究工作包括以下四个方面:(1)提出了基于本体的领域知识库与语义检索框架(OKB&SR)该框架自下而上分为三层:数据层、本体融合层和应用层。