网络远程教育数字资源共享系统与应用

Application of digital resource-sharing system for network distance education

针对传统资源共享系统的抗压能力差的问题,设计网络远程教育数字资源共享系统并研究其应用。对传统共享系统的硬件进行更新后,在硬件的基础上完成软件设计。对数字资源进行预处理,对其进行数字属性标注,建立"关键字-文档"倒索引结构。对数字资源进行管理,根据数字资源的可信度计算其权重,生成资源的搜索列表。管理员对用户上传和互联网抓取的资源进行审核。设计数据库的数据表结构,使用SQL Server应用完成整个系统的数据库设计。通过与传统资源共享系统的对比仿真实验,验证设计的数字资源共享系统的应用效果,该文设计的网络远程教育数字资源共享系统的抗压能力优于传统资源共享系统,整体具备优越性。

As the traditional resource-sharing system has poor anti-pressure ability,a digital resource-sharing system for network distance education is designed and its application is studied. The hardware of the traditional sharing system is updated,after which the software design is completed on the basis of the hardware. The digital resources are preprocessed,their digital attributes are marked,and the inverted index structure of "keyword-document" is established. The digital resources are managed,their weights are calculated according to their credibility of the digital resources,and then the search list of the resources is generated. The administrator reviews the resources uploaded by users and grabbed by the Internet. The database′s data table structure is designed,and the database design of the whole system is completed by means of the SQL Server. The simulation experiments verify the application effect of the designed digital resource-sharing system. The experimental results show that,in comparison with the traditional resource-sharing system,the anti-pressure ability of the designed digital resourcesharing system for network distance education is better.