基于本体的语义检索技术

基于本体的语义检索是建立在语义Web的基础上的检索技术。与传统的检索技术相比,它能提高检索的精度,减少了不相关的返回结果。使用句子成分进行实体的实例的初步创建,然后通过已经构造好的领域本体把实例和实体进行映射,从而构建领域本体的实例,通过对实例进行索引,达到概念级检索的目的。首先介绍了语义Web和本体的基本概念。然后详细讨论了基于本体的语义检索的实现的具体步骤及方法。最后分析了该方法的不足。

Technology of Semantic Search Based on Ontology

The technology of Semantic Search,based on ontology,is a kind of technology of search based on semantic web.Compared with the traditional technology of search,it improves the precision of search,reduces the count of results that are no business of the search.The feature of this paper is to create the instance of an entity by using the element of the sentence,then match the instance to the entity it belongs with field ontology created by human.Using the instance index we can achieve the purpose of conceptual retrieval.This paper introduces the basic conceptions of semantic web and ontology first.Then it discusses the main steps and method of the realization of ontology based semantic search.At last it points out the shortage of the method.