Methods for the evaluation of an interactive InfoVis tool supporting exploratory reasoning processes
Proceedings of the 2006 AVI workshop on BEyond time and errors: novel evaluation methods for information visualization
Judging correlation from scatterplots and parallel coordinate plots
Information Visualization
Evaluation of cluster identification performance for different PCP variants
EuroVis'10 Proceedings of the 12th Eurographics / IEEE - VGTC conference on Visualization
Storygraph: extracting patterns from spatio-temporal data
Proceedings of the ACM SIGKDD Workshop on Interactive Data Exploration and Analytics
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Comparing different Information Visualization (InfoVis) techniques is a challenging task and a necessary step to reach the users and their tasks. We evaluated the effectiveness in visualizing psychotherapeutic data of two InfoVis techniques, namely the Stardinates and the Parallel Coordinates by a comparative study with 22 participants. Based on three research questions we interpret the results of our study in order to derive statements on both visualization techniques. We evaluated (1) the time participants were engaged in testing our material, (2) the number of correct answers, (3) subjectsý statements, which were categorized by the type of statement, and (4) the subjectsý key statements in comparison to those defined by an expert. Our empirical results indicate that the Stardinates are a more appropriate method for interpreting such highly structured data in detail whereas Parallel Coordinates show advantages for gaining information at the first glance.