Zhechen Li

2 accepted papers

2025

Trading Off Voting Axioms for Privacy

Zhechen Li, Ao Liu, Lirong Xia, Yongzhi Cao, Hanpin Wang

UAI 2025

In this paper, we investigate tradeoffs among differential privacy (DP) and several important voting axioms: Pareto efficiency, SD-efficiency, PC-efficiency, Condorcet criterion, and Condorcet loser criterion. We provide upper and lower bounds on the two-way tradeoffs between DP and each axiom. We a

Cited by 0 Source ↗PDF ↗Scholar ↗

2023

Differentially Private Condorcet Voting

Zhechen Li, Ao Liu, Lirong Xia, Yongzhi Cao, Hanpin Wang

AAAI 2023technical

Designing private voting rules is an important and pressing problem for trustworthy democracy. In this paper, under the framework of differential privacy, we propose a novel famliy of randomized voting rules based on the well-known Condorcet method, and focus on three classes of voting rules in this…

Cited by 5 Source ↗PDF ↗Scholar ↗