基于情境感知和本体的E-Learning系统研究

摘要

为了合理、有效地描述E-Learning环境中学习者的学习情形,利用本体论具有知识组织清晰、概念和关系定义明确的特性,建立了E-Learning环境中的情境信息本体模型.为提高学习者的学习兴趣和学习效率,对采集到的情境信息进行情境推理后,采用资源调度控制算法调用相应的学习资源服务及时向学习者提供.应用实例验证了基于情境感知的本体E-Learning系统的服务性能.%For reasonable and effective description of learner's learning under E-Learning environment, the context information ontology model of E-Learning environment is established by the use of ontology theory with the characteristics of clear knowledge organization and definite concepts and relationship definition. Meanwhile, to stimulate the learner' s interest in learning and improve their learning efficiency, learning resource services are called by means of resource scheduling control algorithm and delivered to the learners in time after scenario reasoning to the collected context information. Application examples have verified service performance of ontology E-Learning system based on context aware.