网络远程教育数字资源共享系统与应用

张艮山 刘旭宁

摘  要： 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。

关键词： 数字资源共享; 网络远程教育; 系统设计; 资源预处理; 数据库设计; 应用测试

中图分类号： TN711?34; TP311.52               文献标识码： A                     文章编号： 1004?373X（2020）08?0029?03

Application of digital resource?sharing system for network distance education

ZHANG Genshan1， LIU Xuning2

（1. Shijiazhuang College， Shijiazhuang 050035， China; 2. School of Computer Science and Engineering， Shijiazhuang College， Shijiazhuang 050035， China）

Abstract： 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 resource?sharing system for network distance education is better.

Keywords： digital resource?sharing; network distance education; system design; resource preprocessing; database design; application test

0  引  言

计算机技术与互联网的快速发展，对网络的大规模建设以及应用网络实现大量数据传输能力大幅提升。实际线下教学由于受到地域、师资、教育硬件资源等因素局限，很难得到较好的教育效果。网络则能实现教育资源的数字化远程共享[1]，并且允许用户根据自身需求自行选择教育资源。网络教育资源共享还可以使得教育资源多元化，丰富教育模式。网络的良好交互性，能够提高用户的学习效率[2]。但是，随着网络的快速发展和教育资源的丰富，传统的资源共享系统已经不能满足当下的需求。……