基于Agent联盟的协作学习系统研究

Collaborative Learning System Based on Coalitions of Agents

为了在协作学习系统中实现学习者Agent之间的有效合作,通过引入一种新的合作机制——同学关系网模型(School mate Relation Web Model),来构建学习系统中学习者Agent之间的同学联盟,并且基于学习者Agent之间的同学联盟来实现多个学习者Agent之间的协作学习。在每个同学联盟中,任意两个Agent之间都具有同学关系,并且联盟中的所有Agent相互协作,共同完成学习任务。另外,联盟中的学习者Agent之间的通信不是直接进行的,而是通过一个黑板来进行,这可以显著地提高Agent之间的通信效率。由于同学关系网模型可以避免Agent联盟形成的盲目性,并且可以提高学习者Agent之间的交互效率,从而使得我们基于Agent同学联盟的协作学习系统可以实现学习者Agent之间的有效合作,弥补了现有协作学习系统的不足。

In order to implement an efficient collaboration between different learners in a collaborative learning system, we proposed a new kind of collaborative mechanism -- Schoolmate Relation Web Model, by which we can construct coalitions of schoolmates among different learner Agents. Based on this kind of coalition of schoolmates we can implement the collaborative learning between different learner Agents. In each coalition of schoolmates, every Agent has a schoolmate relation with other Agents, they cooperate with each other and finish learning tasks together. And the agents in the coalition do not communicate directly with each other, but through a blackboard set up in the coalition, which can remarkably improve the efficiency of communication among Agents. Since Schoolmate Relation Web Model can avoid blindness in the forming process of coalition and improve the efficiency of negotiation among learner Agents,our collaborative learning system based on coalitions of schoolmates can realize an effective collaboration among learner agents and solve the problem of large communication and calculation cost which widely exists in current collaborative learning systems.