VisRecall: Quantifying Information Visualisation Recallability via Question Answering
This work addresses the problem of assessing visualization effectiveness for designers, though it is incremental as it builds on existing QA and dataset creation methods.
The authors tackled the lack of quantitative study on fine-grained recallability of information visualizations by proposing a question-answering paradigm and introducing VisRecall, a dataset with 200 visualizations and human recallability scores from 305 participants, and developed a computational method that outperforms baselines in overall and specific question-type recallability.
Despite its importance for assessing the effectiveness of communicating information visually, fine-grained recallability of information visualisations has not been studied quantitatively so far. In this work, we propose a question-answering paradigm to study visualisation recallability and present VisRecall - a novel dataset consisting of 200 visualisations that are annotated with crowd-sourced human (N = 305) recallability scores obtained from 1,000 questions of five question types. Furthermore, we present the first computational method to predict recallability of different visualisation elements, such as the title or specific data values. We report detailed analyses of our method on VisRecall and demonstrate that it outperforms several baselines in overall recallability and FE-, F-, RV-, and U-question recallability. Our work makes fundamental contributions towards a new generation of methods to assist designers in optimising visualisations.