4 ON-LINE HELPING IF LEARNERS ENCOUNTER PROBLEMS DURING THE LEARNI...

2.4 On-Line Helping If learners encounter problems during the learning process, their learning perform-ances could be significantly devastated due to no instant aid. So, online helping sys-tem is very important for an adaptive e-learning system[10].In this multi-agent framework, the on-line aid function is undertaken by auto-reply agent. The auto-reply agent can automatically reply most of the questions submitted by the students with the answers provided by the teachers. If no feasible answer[11] can be found in the an-swer document repository, the agent will forward the questions to the teacher/expert interface agent, and then the auto-reply agent will remind and assist teacher in an-swering the question. Once the new answer is available, the system will send it to the learner via the learner interface agent. Moreover, the teachers can review all of the questions submitted by the learners and the answers replied by the systems with cor-responding satisfaction degrees rated by the learners, which is helpful to the teacher in realizing the learning status of each learner and the performance of the system.