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。
Compared with existing ROI-based image retrieval approaches, it makes use of space information of ROI and multi-resolution retrieval concept, is able to query shape-free and any size objects.
与已有的基于感兴趣区域的检索方法相比，该方法很好地利用了感兴趣区域的空间信息，采用多分辨率检索思想，能够有效地对不同大小任意形状的物体进行检索。
Concept based search engine meet the needs of the future information retrieval system.
基于概念的智能检索才符合信息检索未来的需求。
In order to reduce the burden of the process of retrieving information, in this paper, we have introduced the concept of ontology and established an information retrieval model based on ontology.
为了减轻用户在检索信息过程中的负担，本文根据现有信息检索模型存在的问题，引入本体的概念，建立了一种基于本体的信息检索模型。
Research into information retrieval based on the combination of keyword and semantic concept;
新模型合理地考虑了术语关系，实现了基于语义概念的检索。
Research into information retrieval based on the combination of keyword and semantic concept;
新模型合理地考虑了术语关系，实现了基于语义概念的检索。
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