Agent-based knowledge management in intelligent tutoring systems

A formal model of agent-based knowledge management in intelligent tutoring systems is presented in this paper. It consists of three agents, a knowledge acquisition agent, a knowledge distribution agent and a knowledge maintaining agent. The knowledge acquisition agent is responsible for the construction of user model and domain knowledge base. The knowledge distribution agent is responsible for producing personalized teaching web pages (learning units) to students dynamically. The knowledge maintaining agent is responsible for the refinements of student models and domain knowledge. These agents work together to construct, distribute and maintain knowledge. After given the formalisms of the above three kinds of agents, the formal model of agent-based knowledge management is presented and discussed in detail to show that it is practicable.