基于本体和语义标引的地质资料服务与管理研究  

Study of Service and Management of the Geological Resources Based on Ontology and Semantic Indexing

作　　者：闫东 王诚[1] 

机构地区：[1]中国航天空气动力技术研究院,北京100074

出　　处：《软件》2017年第9期117-121,共5页Software

摘　　要：在信息化时代,高效地组织管理大量地质领域数据成为实现良好的地质资料服务与管理的关键所在。为解决我国地质资料标准化程度低及应用难度大等问题,本文提出了一种基于本体和语义标引的地质资料服务与管理方法。首先建立地质领域信息资源元数据模型和关联关系模型;并根据关联模型自动化构建计算机可读的地质本体;采用基于地质本体的语义概念映射的方法将高维的词语向量转换到低维语义空间,加之词频、词位置和词跨度等权重因子的综合作用,对地质资料文本进行精准快速有效的分类,实现文本的语义标引;最后根据地质本体和语义标引开展地质资料检索试验,试验结果表明,查全率和查准率分别从75.7%和81.2%提高到80.7%和84.8%,检索效果得到了明显提升。因此,本文为地质资料的服务与管理模型设计与实现奠定了良好的基础。There is an urgent need of organizing geological resources by knowledge in the field of geological information management and servicesin the global information age. The geological data and resources are very abundant in China. Therefore, it is difficult to retrieval geological information due to distributed storage and non-unified processing techniques of geological data. In order to solve this problem,this paper presented a kind of the geologicalresources service and management framework based on ontology and semantic indexing.Firstly,this paperbuilt geological field resource metadata model and link-relation model. Next,built he geological domain ontologyautomatically based on the link-relation model.And then studied the geological resources organization method for knowledge service, presented the dimension reduction and classification with semantic indexing method of text based on geology ontology. Finally, this paper realized the retrieval system based on ontology and semantic indexing.The results showed that the recall and precision had respectively increased from 75.7% to 81.2% and 80.7% to 84.8%, which laid a good foundation for service and management of the geological resources in the future.

关 键 词：计算机应用技术 知识服务 本体 语义标引 

分 类 号：B016[哲学宗教—哲学理论]