用户驱动的研讨信息可视化平台的设计与实现

在“以计算机为媒介的群体沟通”环境下，常常出现“知识断层”和“信息过载”。研讨信息可视化丰富了研究和认知手段以及群体发现信息的途径，因而成为缓解“信息过载”的一个重要途径。以研讨用户为中心，从单个信息、信息关系、了解研讨状态、把握研讨过程四个方面识别出研讨用户的信息寻找、发现以及获取的需求;并基于群体研讨支持系统的信息组织模型，设计了用户驱动的研讨信息可视化平台，并结合J2EE、XML、计算机图形学等技术，实现了可视化平台，并结合一个具体应用示范了平台的功能。

User-center argumentation information visualization

In the computer-mediated group communication,it usually appears "knowledge-faultage" and "information overload".Argumentation information visualization can rich group cognition and the ways to discovery group information,becoming a good way to release the"information overload".In this study,we recognize the demand for user to search information,discovery information from the perspective of single argumentation information,relationship among argumentation information,knowing the group status and holding argumentation process;and based on the information organization model in the Group Argumentation Support Systems(GASS),we design a user-center information visualization platform,then implement the platform with the J2EE,XML and computer graphics;finally,we demonstrate the application using an argumentation example.