4 citations · 6 across the 7 of their papers we have counts for
8 papers
Optimal Privacy-Utility Trade-Offs in LDP: Functional and Geometric Perspectives
Seung-Hyun Nam, Hyun-Young Park, Si-Hyeon Lee
Local differential privacy (LDP) has emerged as a gold-standard framework for privacy-preserving data analysis. However, characterizing the optimal privacy-utility trade-off (PUT)…
Fundamental Limit of Discrete Distribution Estimation under Utility-Optimized Local Differential Privacy
Sun-Moon Yoon, Hyun-Young Park, Seung-Hyun Nam +1
We study the problem of discrete distribution estimation under utility-optimized local differential privacy (ULDP), which enforces local differential privacy (LDP) on sensitive dat…
Enhancing Sum Capacity via Quantum and No-Signaling Cooperation Between Transmitters
Seung-Hyun Nam, Hyun-Young Park, Jiyoung Yun +3
We consider communication over discrete memoryless interference channels or multiple access channels without feedback, where transmitters exploit classical, quantum, or no-signalin…
Quantum Advantage in Locally Differentially Private Hypothesis Testing
Seung-Hyun Nam, Hyun-Young Park, Si-Hyeon Lee +1
We consider a private hypothesis testing scenario, including both symmetric and asymmetric testing, based on classical data samples. The utility is measured by the error exponents,…
Exactly Minimax-Optimal Locally Differentially Private Sampling
Hyun-Young Park, Shahab Asoodeh, Si-Hyeon Lee
The sampling problem under local differential privacy has recently been studied with potential applications to generative models, but a fundamental analysis of its privacy-utility…
Achieving the Exactly Optimal Privacy-Utility Trade-Off with Low Communication Cost via Shared Randomness
Seung-Hyun Nam, Hyun-Young Park, Si-Hyeon Lee
We consider a discrete distribution estimation problem under a local differential privacy (LDP) constraint in the presence of shared randomness. By exploiting the shared randomness…
Exactly Optimal and Communication-Efficient Private Estimation via Block Designs
Hyun-Young Park, Seung-Hyun Nam, Si-Hyeon Lee
In this paper, we propose a new class of local differential privacy (LDP) schemes based on combinatorial block designs for discrete distribution estimation. This class not only rec…
Nonlocal and quantum advantages in network coding for multiple access channels
Jiyoung Yun, Seung-Hyun Nam, Hyun-Young Park +3
In this work, we consider two-sender, one-receiver communication over a discrete memoryless multiple-access channel without feedback, where two senders may cooperate on channel cod…