基于中介器/包装器的联合数字图书馆集成信息检索机制  

Integrated information retrieval mechanism for federated digital librarybased on mediator/wrapper

作　　者：师雪霖[1] 牛振东[2] 宋瀚涛[1] 

机构地区：[1]北京理工大学计算机科学与工程系,北京100081 [2]北京理工大学软件学院

出　　处：《计算机应用》2005年第3期703-705,共3页journal of Computer Applications

基　　金：霍英东教育基金资助项目(91101)

摘　　要：联合数字图书馆的目的就是为了实现信息的集成共享,给用户提供统一资源查询服务。提出了一种基于中介器 /包装器的联合数字图书集成信息检索机制,以RDF作为中间信息表示语言,完成查询转换和结果合成。此外描述了实现此机制的FDL集成信息检索系统,重点介绍了基于RDF的中介器、包装器产生模块的设计。并以原型系统为例,测试分析了系统性能。Federated digital library should enable heterogeneous data sources to be shared and allow users to access them easily. An integrated information retrieval mechanism for federated digital library based on mediator/wrapper was proposed. It used RDF as information exchange format, and implemented query translation and result integration. An FDL integrated information retrieval system using the mechanism was implemented. The designs of mediator and wrapper generator were introduced and the performance of the system was analyzed.

关 键 词：联合数字图书馆 中介器 包装器 RDF 

分 类 号：TP311.13[自动化与计算机技术—计算机软件与理论]