Mitsunori Matsushita, Hayato Yonezawa, Tsuneaki Kato
We propose a new visualization system that automatically creates a graph from a large amount of numerical data corresponding to user's requirements. The system has the following functions: to understand the user's requirements, to select the necessary data from a datatable, to convert and aggregate the selected data to a suitable granularity, and to visualize the data with an appropriate graphical style. In this paper, we introduce a semantic frame in order to formally deal with the user's requirement. The semantic frame consists of two subframes: one is mainly for selecting and restructuring data, and the other is mainly for choosing an appropriate graph-type and emphasizing focal characteristics. We also explain an aggregation algorithm for making the necessary datatable. With this system, a user only inputs his/her requirements described in natural language, and then he/she is able to get an appropriate graph from an enormous amount of data even if the data granularity is not well suited to the requirement.
Keywords: Intelligent User Interfaces, Knowledge Representation, Knowledge-Based Systems
Citation: Mitsunori Matsushita, Hayato Yonezawa, Tsuneaki Kato: A Frame Representation of User Requirements for Automated Data Visualization. In W.Horn (ed.): ECAI2000, Proceedings of the 14th European Conference on Artificial Intelligence, IOS Press, Amsterdam, 2000, pp.631-635.