4 papers
PrivScope: Task-scoped Disclosure Control for Hybrid Agentic Systems
Shafizur Rahman Seeam, Zhengxiong Li, Zhiyuan Yu +3
Hybrid local--cloud agents enrich user requests with context from persistent working state before delegating capability-intensive subtasks to a cloud language model (CLM). While th…
Frequency Estimation of Correlated Multi-attribute Data under Local Differential Privacy
Shafizur Rahman Seeam, Ye Zheng, Yidan Hu
Large-scale data collection, from national censuses to IoT-enabled smart homes, routinely gathers dozens of attributes per individual. These multi-attribute datasets are crucial fo…
PrivAR: Client-Side Privacy Framework for Real-Time Location-Based Augmented Reality
Shafizur Rahman Seeam, Ye Zheng, Zhengxiong Li +1
Location-based augmented reality (LB-AR) applications, such as Pokemon Go, rely on sub-second GPS updates to deliver responsive and immersive user experiences. However, this high-f…
Locally Differentially Private Frequency Estimation via Joint Randomized Response
Ye Zheng, Shafizur Rahman Seeam, Yidan Hu +2
Local Differential Privacy (LDP) has been widely recognized as a powerful tool for providing a strong theoretical guarantee of data privacy to data contributors against an untruste…