Proposal and Evaluation of Visual Analytics Interface for Time-Series Data Based on Trajectory Representation

Rei TAKAMI  Yasufumi TAKAMA  

IEICE TRANSACTIONS on Information and Systems   Vol.E103-D   No.1   pp.142-151
Publication Date: 2020/01/01
Online ISSN: 1745-1361
DOI: 10.1587/transinf.2019ZDP0002
Type of Manuscript: PAPER
Category: Human-computer Interaction
visual analytics,  human computer interaction,  interactive systems,  time-series data,  

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This paper proposes a visual analytics (VA) interface for time-series data so that it can solve the problems arising from the property of time-series data: a collision between interaction and animation on the temporal aspect, collision of interaction between the temporal and spatial aspects, and the trade-off of exploration accuracy, efficiency, and scalability between different visualization methods. To solve these problems, this paper proposes a VA interface that can handle temporal and spatial changes uniformly. Trajectories can show temporal changes spatially, of which direct manipulation enables to examine the relationship among objects either at a certain time point or throughout the entire time range. The usefulness of the proposed interface is demonstrated through experiments.