基于Petri网的知识空间建模方法与学习路径控制

Method on knowledge space model based on Petri net and learning path control

对学生学习路径的控制和学习状态的了解在自主学习系统中是一个重要的问题,以知识空间理论为基础建立了学习状态空间,并通过Petri网对该学习状态空间进行了建模,利用Petri网实现了学习状态空间中所有可能的学习路径控制和学生学习状态的了解,在此模型中学生可以利用Petri网的变迁实现自由的学习控制,并通过Petri网库所标识来了解学生的学习状态,达到个性化学习路径的目的。

One of the important problems for the self-learning system is to control the student＇s learning path and to know the student＇s learning knowledge state in the system.The paper studies learning state space based on knowledge space theory,and the learning state model based on Petri net is introduced.All possible learning paths in the learning state space and student＇s learning state can be attained based on Petri net technique.In the model,learner can control freely the learning path through transition of Petri net.The system can know learner＇s learning state by the mean of the place marking of Petri net.The aim of the personalized learning path can be achieved by the model.