Because computer can understand the meaning of metadata carried by RDF, our searching engine can provide information retrieval based on concept or content.
由于计算机可以理解rdf描述和携带的元数据的含义，因此可以做到基于内容的精确检索。
Conceptual information retrieval navigation based on the subject concept tree provides convenience to the user.
基于主题概念树的概念检索导航为用户检索提供了便利。
An information retrieval model based on language concept space and a clustering method which serves the IR model is propsed.
提出了一种以语言概念空间中的概念为聚类对象的信息检索方法以及适合于该方法的聚类算法。
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