【正文】 prove the learning efficiency. The proposed system works in the following way. At the beginning, the learner starts to study the learning materials. The teacher checks the learning situation and based on that decides how to support the learner. In the learner support subsystem is implemented the Windows Messenger (WM). Using the messenger, the teacher and learner can municate together. If the learner understands the problem he asked the teacher, he goes back to the learning subsystem and starts again learning process. Learning subsystem The interface of elearning system is shown in Fig. 3 and the elearning flow is shown in Fig. 4. Atthebeginning,the learner logins to the system. Next, if the learner understands the text, he starts to do the exercises. Then, the obtained results and ranking are shown in the puter that, the learner decides the next items to study. If the learner does not understand some parts of the text, the learner moves to the learner support subsystem, when understands all the text goes back to the learning subsystem. Teacher supporting subsystem In this subsystem, the person who is registered as teacher can enter the system by using the registered login and password. By using this subsystem, the teacher is able to judge the learning situation of the learners. The teacher can check the following items. amp。 Tamaki et al., 2020。 California Virtual University。 Sato et al., 1999). Consequently, many large projects such as CALAT。外文文獻(xiàn)原文及翻譯 A webbased elearning system for increasing study efficiency by stimulating learner’s motivation Abstract： Due to the opportunities provided by the Inter, more and more people are taking advantage of distance learning courses and during the last few years enormous research efforts have been dedicated to the development of distance learning systems. So far, many elearning systems are proposed and used practically. However, in these systems the elearning pletion rate is about 30%. One of the reasons is the low study desire when the learner studies the learning materials. In this research, we propose an interactive Webbased elearning system. The purpose of our system is to increase the elearning pletion rate by stimulating learner’s motivation. The proposed system has three subsystems: the learning subsystem, learner support subsystem, and teacher support subsystem. The learning subsystem improves the learner’s study desire. The learner support subsystem supports the learner during the study, and the teacher support subsystem supports the teacher to get the learner’s study state. To evaluate the proposed system, we developed several experiments and surveys. By using new features such as: display of learner’s study history, change of interface color, encourage function, ranking function, selfdetermination of the study materials, and grouping of learners, the proposed system can increase the learning efficiency. Keywords ： Webbased systems, Elearning, Increase of learning efficiency Stimulating learner’s motivation. Grouping of learners 1 Introduction Due to the opportunities provided by the Inter, more and more people are taking advantage of distance learning courses. During the last few years enormous research efforts have been dedicated to the development of distance learning systems (Nakabayashi et al., 1999。 Ohkawa et al., 2020。 The University of the Air。 and DAIX Web College have been establised. However, in these systems the elearning pletion rate is about 30%. One of the reasons is the low study desire when the learner studies learning materials. Therefore, it is very important to stimulate learner’s motivation during the study. Recently, several distance learning systems that consider the learner’s capability and understanding have been proposed (Matsumoto et al., 1999。 Koyama, 2020, 2020), we proposed an agent based distance learning system to deliver appropriate studying materials to learners and stimulate learner’s motivation by using mental action of color (Tatsuno, 1995。 The learner has problems during the study or not (is the learner using the learner supporting system or not). amp。 The present study item. amp。 Learner address, amp。 BB, amp。 Communication between the teacher and student (explanation). All these munications are done in the synchronous mode. However, by using the the system can offer also asynchronous mode munication. Thus, the proposed system different from other implemented elearning systems can support the learners and teachers to municate with each other in synchronous and asynchronous modes. 3 Proposed system evaluation method In order to evaluate the proposed system, we used some questionnaires and asked the learners how the system performed and especially how the system stimulated the learner’s motivation. For the experiment, ten students and two professors of our laboratory used the system and then we prepared three questionnaires as shown in Tables1, 2 and 3. The first questionnaire has questions related with improvement of learner’s motivation. The second questionnaire has questions about the interactive functions. Finally, in the third questionnaire are written the ments and suggestions from the teachers and students. We used a five grade evaluation system. When the grade is higher, it shows that the system provides better functions. Finally, in the last experiment, we used 15 learners to check how the system does their grouping. 4 System evaluation results The evaluation results for the proposed system are shown in Figs. 7, 8 and 9. In Figs. 7 and 8 are shown the average