Concept-based Retrieval is a technology available. Concept Retrieval is based on keywords from the current level to a level based on knowledge.
概念检索就是其中一种实现方式。
参考来源 - 利用概念检索实现专业搜索引擎的智能化·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
This paper proposes a method of image semantic annotation and retrieval based on concept distribution.
基于概念分布进行检索是实现图像语义检索的方法之一。
When a large number of semantic concept descriptors were build up, semantic concepts based video retrieval would be the effective way to achieve content-oriented video retrieval.
当大量的语义概念检测子建立以后，基于这些语义概念的视频检索将是实现面向语义内容的视频检索的有效途径。
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