【作者】 王静；

【导师】 丁振国；

【作者基本信息】 西安电子科技大学 ， 情报学， 2005， 硕士

【摘要】 网络和现代教育理论的发展为个性化的学习提出新的要求。一方面,信息社会以创新型人才的培养为目标,个性化、创造力的培养成为教育的重点。另一方面,现代远程教育在强调学习者个性发展的同时,也强调学习者社会性的培养,即对学习者学习的合理引导和控制。为了解决新形势下学习者个性发展和社会要求之间的矛盾,本文提出了个性化受控的学习模式。这种模式在发展学习者个性的同时也注重抑制网络对学习者的负面影响,使学习者在长期的远程学习过程中接受一种潜移默化的良性引导。结合个性化受控学习模式,本文设计并开发了相应的学习支持系统Pcon。为了使系统更具生命力,提出了以SCORM 规范为基准,以数据挖掘为核心的系统模型。其中,为了构建深层次的学习者个性模型,使用Web 使用挖掘和XML 技术生成学习者个性档案文件;为了实现对学习行为趋势的分析,使用了基于支撑向量机的混沌时间序列分析技术处理来自学习管理系统的数据;为了提供学习者良好的学习内容服务,使用XML 挖掘和UDDI 技术来发现内容对象,并在此基础上提出了基于CIT 对XSD 描述的XML 文档进行挖掘的算法。另外,为了配合SCORM 规范中的序列和导航建议实现课程导学,提出了对象构建和内容重组的方法来为学习者自动组织个性化内容。为了保证系统开发的质量和效率,采用了软件工程中螺旋模型进行系统开发,并最终实现了学习者个性信息收集、挖掘、整理以及学习内容重组等功能。个性化远程学习系统的研究涉及了大量的理论和技术,许多尚在发展中,还有大量的工作需要进一步的探索和研究。提高学习者行为预测精度、LCMS 支持以及代理的支持等都将成为下一步研究的主要目标。更多还原

【Abstract】 The development of the network and modern educational theory raises new requirement for personalized learning. On one hand, the society of information, featuring by the Internet, aims at making the persons have creative abilities, with the emphasis on education of personalization and innovative abilities. On the other hand, the modern distance education stresses not only the development of personality, but also the education of learners’ sociality, namely the reasonable steering of and control over learners’ studies. In order to solve the conflict between the personalized development of the learners and the social requirements, the paper, based on detailed analysis of the connotation of personalization and the achievement of the modern distance education, presents a personalized and controllable learning mode, which, in addition to advocate to develop learners’ personalities, attaches great importance to restrain the negative influence from the internet on learners so as to enable them, in a long run, to obtain a good abduction in the process of study. With the assistance of the personalized learning model, the designing and developmenting of Pcon(Personally Controllable E-learning System)is presented. For the system to be energetic, the supporting-learning system, on the basis of SCORM, uses the technology of data mining as the core of the systemic model. Of which, the web mining and XML technology is applied to structure the abstract personalized model for the learners; in order to analyze the tendency of the learning behavior, the data resulting from the LMS are processed with the adoption of the technology of predicting Chaotic Time Series based on SVM; XML and UDDI are used to discover the target, and on the basis of CIT, the arithmetic method for describing the XSD document described by XML is presented. In addition, course leading is proposed so as to coordinate the sequence and navigation in the regulations of SCORM. The methods for target construction and content restructure is formulate to automatically organize the personalized content. In order to assure the quality and efficiency of the system development, helix model which is often used in software development is adopted to develop the system, finally, the functions of assembling, mining, processing and restructuring the personalized information of the learners are achieved. The research on the personalized distance learning system involves a great variety of theories and technologies, many of which are still under development. Owing to the limitation of time and condition, much work are required to do further in the future with the main target research on improvement in predicting precision of learners, XML Mining, sequence, and the support to LCMS and the agency.更多还原