【作者】 陈妍；

【导师】 朱国进；

【作者基本信息】 东华大学 ， 计算机应用技术， 2005， 硕士

【摘要】 随着Internet的发展,现代远程教学在教育领域中发挥着越来越重要的作用,教学资源作为一种可共享资源,为读者提供了极具价值的信息。但是在传统的现代远程教学系统中,当使用搜索引擎对教学资源进行搜索时,往往会检索到许多不相关的信息,而且不同的读者会得到相同的搜索结果。导致读者难以查找到与需求相关的资源,难以实现相关资源的语义融合和较高的找准率和找全率,使得传统的现代远程教学系统不能为读者提供个性化服务,不能实现学生的个性化学习。这是由于传统的现代远程教学系统对资源的表示不具有语义信息,机器不理解这些信息表示的内容,在作者表达的信息空间和读者要浏览的信息空间之间缺少一种统一的联系机制。 针对目前现代远程教学系统中存在的不足,本文结合国家自然科学基金项目《面向资源自动发现的网络信息空间结构化模型研究》,提出面向个性化学习的网上自助教学系统。该教学系统基于某一个特定领域对教学资源进行语义描述,使其具有机器可以理解的语义信息。同时本文提出一种新的教学模式——网上自助教学模式,使学生能够进行自主地和自助地学习,解决传统的现代远程教学系统中由于没有改变以教师为中心的授课方式,而产生的统一的教学模式和学生自我设计的矛盾。其创新点在于:1、引入本体对教学资源进行语义描述;2、实现个性化搜索和浏览;3、提出一种新的更多还原

【Abstract】 With the development of Internet, modern distance learning is playing a more and more important role in the educational field. And as shared resource, teaching resource can offer valuable information to reader. But in the traditional modern distance learning, when use the searching engine to search for teaching resources, it often search a lot of uncorrelated information, and different readers will receive the same search result. Which cause reader to be difficult to find out resource correlated with what he want to, difficult to realize relevant semantic merge and finding rating accurately and looking for the whole rating high of resource. And make the traditional modern distance learning unable to offer personalized service for readers, can’t realize that students’ personalized study, because the traditional modern distance learning does not have semantic information to the expression of resources, the computer does not understand what information expresses. There lack a kind of unified mechanism of contacting in space the author expresses and space the reader browses.This paper combines the fund project of national natural science—A research on a structured model of networked information space for automatic resource discovery, propose to the self-help teaching system based on web for personalized study aiming to the deficiency existing to the modern distance learning at present. The teaching system describes teaching resource with semantic based on a certain specific field, and make it has semantic information understood by the machine. Meanwhile this paper puts forward a kind of new teaching mode—self-help teaching mode which makes students’ study autonomous and self-helping, solves the contradiction between uniform teaching mode and student self-design in the traditional modern distance learning. The innovations are: 1.Semantic describe to teaching resources with ontology; 2.Realize personalized searching for and browsing; 3.Propose to a kind of new self-help teaching model, solve the contradiction between uniform teaching mode and student self-design; 4. Realize that the display form define of the component of teaching resources and the describing of operate the authority; 5.Self-help teaching system of based on domain knowledge.This paper carries on ontological analysis and ontological modeling introduce to self-help teaching system based on web for personalized study by using ontology. And describe teaching resource’s ontological model by using that language OWL (Web Ontology Language ), thus support computer analyzing , Webnetwork transmitting and inquiry based on semantic. Combine together with other subproject—a networked information personalized browsing space based on domain knowledge realize personalized browsing. This paper has verified the feasibility of this system with a application instance finally, have reflected its using value.更多还原