Defogger: A Visual Analysis Approach for Data Exploration of Sensitive Data Protected by Differential Privacy
Xumeng Wang - Nankai University, Tianjin, China
Shuangcheng Jiao - Nankai University, Tianjin, China
Chris Bryan - Arizona State University, Tempe, United States
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Room: Bayshore II
2024-10-17T18:45:00Z GMT-0600 Change your timezone on the schedule page
2024-10-17T18:45:00Z
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Keywords
Differential privacy, Visual data analysis, Data exploration, Visualization for uncertainty illustration
Abstract
Differential privacy ensures the security of individual privacy but poses challenges to data exploration processes because the limited privacy budget incapacitates the flexibility of exploration and the noisy feedback of data requests leads to confusing uncertainty. In this study, we take the lead in describing corresponding exploration scenarios, including underlying requirements and available exploration strategies. To facilitate practical applications, we propose a visual analysis approach to the formulation of exploration strategies. Our approach applies a reinforcement learning model to provide diverse suggestions for exploration strategies according to the exploration intent of users. A novel visual design for representing uncertainty in correlation patterns is integrated into our prototype system to support the proposed approach. Finally, we implemented a user study and two case studies. The results of these studies verified that our approach can help develop strategies that satisfy the exploration intent of users.