CAJ | 학술논문

针对传统Web教育主体难以获得高可用教育资源的问题,提出了一种面向语义主题相似度的Web教育资源查询方法。该方法建立了本体概念语义网络(Ontology Concept Semantic Network,OCSN),在此基础上,设计了基于语义主题相似度匹配的概念检索方法：在检索前主动将教育资源根据其语义和主题组织到本体概念语义网络中,然后建立一个基于语义特性的Web教育资源发现的垂直搜索引擎,并通过构造满足条件的相似度函数,将对应的语义距离映射为相似度,有效地提高了查询效率。实验结果表明此方法能够提高Web教育资源的查准率和查全率。
침대전통Web교육주체난이획득고가용교육자원적문제,제출료일충면향어의주제상사도적Web교육자원사순방법。해방법건립료본체개념어의망락(Ontology Concept Semantic Network,OCSN),재차기출상,설계료기우어의주제상사도필배적개념검색방법：재검색전주동장교육자원근거기어의화주제조직도본체개념어의망락중,연후건립일개기우어의특성적Web교육자원발현적수직수색인경,병통과구조만족조건적상사도함수,장대응적어의거리영사위상사도,유효지제고료사순효솔。실험결과표명차방법능구제고Web교육자원적사준솔화사전솔。
In order to make users acquire high availability of educational resources to solve the defects of the keyword search,a Web edu-cational resources query methods oriented semantic theme is proposed. This method builds the ontology concept semantic networks,on the basis of this,the concept retrieval method based on the semantic theme similarity matching is designed,that is the semantic theme was in-troduced into ontology concept semantic network,then a Web education resource vertical search engine was set up which blended with the semantic characteristic,and map the corresponding semantic distance into similarity by constructing a similarity function to meet the con-ditions,improving the query efficiency effectively. Experiment results show the method can improve information retrieval precision and recall.