基于P2P计算的教育资源库共享系统研究  

Research on P2P based system for educational resource library sharing

作　　者：王文宏[1] 王凤蕊[2] 潘全科[1] 

机构地区：[1]聊城大学计算机学院,山东聊城252059 [2]聊城大学教育传播技术学院,山东聊城252059

出　　处：《计算机工程与设计》2007年第13期3130-3132,3237,共4页Computer Engineering and Design

基　　金：山东省自然科学基金项目(2004ZX17);聊城大学自然科学基金项目(X051036)

摘　　要：E-learning的有效实施需要将现有异构教育资源库进行集成,提供一个大规模的资源共享平台。深入分析了e-learning对资源共享的目标和教育资源库管理系统的发展趋势,介绍了P2P计算的分类和JXTA开发平台的技术优势。在此基础上,设计了一种混合P2P结构的教育资源库共享系统,给出了基于JXTA平台的系统体系结构与实现方案,详述了利用XML元数据与本体实现数据库与文件资源发布的机制及支持元数据搜索的查询算法。应用P2P技术和本体解决了分布式异构性教育资源的共享问题。To implement e-learning effectively, it needs to integrate all kinds of heterogeneous educational resource library and construct a large scale resource sharing platform. By using P2P and ontology technology, the distributed heterogeneous educational resource sharing problem is resolved. Development trend of current educational resource library system and requirement of e-learning resource sharing are deeply analyzed. The category of P2P computing and the technical advantages of JXTA platform are introduced concisely. Hybrid P2P architecture of educational resource sharing system and system implementation resolution based on JXTA platform are given. The mechanism of database and file resource publication using XML metadata and ontology as well as metadata search algorithm are described in detail.

关 键 词：P2P计算 教育资源库 共享系统 本体 元数据查询算法 

分 类 号：TP393.07[自动化与计算机技术—计算机应用技术]