多源矢量空间数据可用性评估的可视分析

The visual analysis of multi-source vector spatial data usability evaluation

本文将可视分析引入到多源矢量空间数据可用性评估中,为用户提供探索发现数据可用性的环境。在论证可行性的基础上,制定了多源矢量空间数据可用性评估可视分析应遵循的基本原则。在反映多源空间数据的同时,根据用户需求确定评估内容,触发相应模型计算并可视化表达,将用户需求、人脑认知通过交互界面和计算机算法模型相结合,允许用户按照自身需求了解不同数据的各种信息,帮助用户发现隐藏在数据中的知识,进而制定科学合理的数据使用方案。

This paper introduces visual analytics to the evaluation of multi-source vector spatial data usability, which offers the environment of visual analysis to the user. Analyzing the feasibility from concept and technique, the paper formulates the basic principles. Visualizing the multi-source spatial data, the usability evaluation is driven by user requirements, and then the relevant model program is triggered to calculate and visualize. Visual analysis can link the user demand, human cognition and usability evaluation models together through interactive interface. With the help of visual analytics, user can explore different aspects and details of multi-source vector spatial data, and then make scientific plan of data use based on obtaining the hidden knowledge. The experiments indicate that this method holds higher efficiency and better experience feeling.