A Study on Network Media Systems Assisting Life-Long learning in Collaboration

为了创造一个终身学习的环境，帮助有共同目标的学习者在广域网上进行协作学习，本研究实现了以下4个目标，并取得了如下结果：(1)为了使学习者能够比较相同或不同类别的知识和案例；我们提出并原型化了一个系统，帮助教师和学习者注释信息资源的位置，解释或举例说明解决问题所必需的知识单元的使用，以及那些建立它们的知识单元，由讲师指定的问题库。另一方面，系统创建了一个表示知识单元之间资源关系的图。地图通过注释、解释和举例说明相同知识单元的使用差异或在不同情况下使用不同的知识单元，帮助学习者检索资源。应用于日语辅助学习的标注系统和应用于地理共享媒体系统的地图系统都取得了良好的效果。(2)作为一个帮助老年人与媒体代表的学习材料互动的例子，我们开发了一个软件系统，使图标指向操作更容易，更快捷。我们要开发一种可以识别书写对象的手写输入系统。(3)在帮助学习者解决问题的任务方面，我们致力于巩固与由此衍生的知识单元相关的问题类型的基本概念。通过帮助作者轻松地描述特定问题的解决方案计划中问题类型的使用，详细了解了领域可伸缩性。另一方面，开发了帮助学习者进行规划和重做的算法。(4)建立了一个电子工作场所的原型，在这个原型中，一组学习者可以通过合作讨论来完成上述任务。设计一个基于字符的流方案，使进程能够远程调用其他进程的方法，我们可以实现一个服务器多客户端系统，在该系统中，来自服务器批准的客户端的消息或字符串编码方法被传递给所有客户端，编码方法被解释以执行。少

Aiming at developing an environment for life-long learning to assist learners who share goals to learn collaboratively on wide-area networks, the following 4 objectives were persued and results were obtained as outlined:(1)In order to make learners compare knowledge and cases of the same or different categories, we proposed and prototyped a system which assists teachers and learners to annotate such positions of information resources as explaining or exemplifying use of knowledge units necessary in solving problems as well as those founding them, the repertoire of the problems being specified by the instructor. The system, on the other hand, creates a map representing the appearances of relationships in the resources between the knowledge units. The map helps learners retrieve resources, via annotations, explaining and exemplifying differences in usage of the same knowledge units or use of different knowledge units in different situations. Annotation system applied to assisting learnin … More g Japanese as the second language and a map system applied to our Share Media system in geography both turned out effective.(2)As an example of assisting the aged people in interacting with media-represented learning materials, we developed a software system for making icon pointing operation easier and faster. We are to develop a handwriting input system that can recognize written objects.(3)As for assistance of learners' problem-solving tasks, we worked for consolidating fundamental concepts of problem types in relation to knowledge units derived therefrom. And domain scalability was perused by assisting the authors easily to describe use of problem types in the solution plans for specific problems. On the other hand, algorithms were developed for assisting the learners in planning as well as redoing.(4)An electronic workplace was prototyped where a group of learners can collaborate with discussion to carry out such tasks as mentioned above. Devising a character-based streaming scheme enabling a process remotely to invoke methods of other processes, we could realize a server multi-client system in which a message or a string-coded method from a client given approval by the server is delivered to all of the clients, the coded method being interpreted for execution. Less