摘要
协商研讨是处理开放复杂问题的一种方法，从思维科学的层次来看，它是思维科学的一项应用技术。可视化技术是协商研讨系统中的关键部分，协商研讨系统利用可视化的人机交互过程，结合试探性和启发性的问题求解方法来帮助研讨专家逐步加深和调整对问题结构的认识；通过交互图表展示从复杂的数据集中提取的关键信息，将看不见的信息直观的显示出来，提供了发现新问题的新的途径，丰富了研究和认知手段。
本文研究的是协商研讨系统中的可视化技术，其理论基础是群体研讨、计算机图形学和认知心理学。本文首先在介绍协商研讨系统相关知识的基础上，分析了现有可视化技术在协商研讨系统中的应用现状及不足。其次，根据研讨信息模型，改进了研讨信息的组织结构，并且提炼出了协商研讨过程中需要可视化的内容，即研讨信息文本的可视化、共识达成态势可视化、共识提取及研讨专家意见分布可视化，帮助研讨专家更好的思维。利用树视图实现了研讨信息文本的树状可视化展示；根据共识达成算法，使用MSChart技术实现了共识达成态势可视化、共识提取及研讨专家意见可视化。并将以上可视化技术应用于协商研讨系统中，实现了相应的可视化模块。最后，通过实例分析了具有可视化功能的协商研讨系统和没可视化功能的协商研讨系统的实际应用效果。结果表明，将以上可视化技术应用于协商研讨系统后，可以使研讨专家更好的把握研讨进程，促进新方案的提出，加快共识达成速度，提高了协商研讨效率，使协商研讨结论更加科学化、客观化。
Deliberation is a mean to deal with open and complex problems. From the perspective ofcognitive science, it is the technology of application in cognitive science. Visualization is the keypart in deliberation system. Deliberation system help the group to have a better understanding of theproblem and adjust the cognition by using the process of visualization human-computer and thesolution methods that is probing and inspiring. Also it helps to extract the key information from thecomplex data set and show the invisible information directly by the interactive diagram. At the sametime, it provides a new way to discover problems and rich means to research.
This paper studies the visualization which based on group deliberation, computer graphics andcognitive psychology in deliberation system. Firstly, the paper introduces the basic theory indeliberation system and analyses the status of application and the disadvantage of the existingvisualization in deliberation. Then we improve the structure of the discussion information accordingto the discussion information model. And extract the content of visualization that are thevisualization of discussion information, the consensus situation, the consensus extract and thedistribution of experts' views. This could help experts better thinking. The visualization of thediscussion information is implemented with TreeView control. The visualization of the consensussituation, the consensus extract and the distribution of experts' view are implemented in MSChartcontrol. At last, we analyses the application effect by comparing the deliberation system with andwithout the visualization function. The result show that the deliberation system with the abovevisualization can make the group grasp the process of the discussion better. Also it promotes the newsolution be proposed. It speeds up the consensus reach. It improves the deliberation efficiency. Andit make the result of deliberation more scientific and objective.
引文
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