基于本体和Lucene的网络教育资源管理检索系统

摘要

The basic functions of network education resources management and retrieval are implemented by ontology and Lucene full-text retrieval technology, they consist of those such as the extensions of query semantics based on ontology, document indexes of network edu-cation resources and their category management. document retrieval, sorting and paging of retrieval results, user registration and login, etc. The system employs JSF framework to build Web application according to MVC pattern, and employs JPA to achieve ORM mapping. EL ex-pression is embedded into JSF and JSTL tag, Web page is built by employing Facelets template technology for full-text retrieving based on Lu-cene package. Education resources ontology is parsed to extend the semantics of user query by OWLAPI, this enhances the recall and preci-sion rates. Experiments show that the system is stable, accessible, reliable and easy to operate.%利用本体和Lucene全文检索技术实现了对网络教育资源管理检索的基本功能,包括基于本体的查询语义扩展、网络教育资源文档索引及其分类管理、文档检索、检索结果排序与分页、用户注册与登录等.系统遵循MVC模式,基于JSF框架构建Web应用,使用JPA实现ORM映射,将EL表达式嵌入JSF标签和JSTL标签,运用Facelets模板技术构建Web页面,基于Lucene包进行全文检索,通过OWL API解析教育资源领域本体,扩展用户查询请求语义,提高了查全率和查准率.测试表明,该系统运行稳定,可访问性、可靠性好,操作简便.