Search Results for author: Keyu Zhu

Found 7 papers, 0 papers with code

Privacy and Bias Analysis of Disclosure Avoidance Systems

no code implementations28 Jan 2023 Keyu Zhu, Ferdinando Fioretto, Pascal Van Hentenryck, Saswat Das, Christine Task

The results show that, contrary to popular beliefs, traditional differential privacy techniques may be superior in terms of accuracy and fairness to differential private counterparts of widely used DA mechanisms.

Fairness

Fairness Increases Adversarial Vulnerability

no code implementations21 Nov 2022 Cuong Tran, Keyu Zhu, Ferdinando Fioretto, Pascal Van Hentenryck

The remarkable performance of deep learning models and their applications in consequential domains (e. g., facial recognition) introduces important challenges at the intersection of equity and security.

Fairness

SF-PATE: Scalable, Fair, and Private Aggregation of Teacher Ensembles

no code implementations11 Apr 2022 Cuong Tran, Keyu Zhu, Ferdinando Fioretto, Pascal Van Hentenryck

A key characteristic of the proposed model is to enable the adoption of off-the-selves and non-private fair models to create a privacy-preserving and fair model.

Fairness Privacy Preserving

Post-processing of Differentially Private Data: A Fairness Perspective

no code implementations24 Jan 2022 Keyu Zhu, Ferdinando Fioretto, Pascal Van Hentenryck

Post-processing immunity is a fundamental property of differential privacy: it enables arbitrary data-independent transformations to differentially private outputs without affecting their privacy guarantees.

Fairness

Bias and Variance of Post-processing in Differential Privacy

no code implementations9 Oct 2020 Keyu Zhu, Pascal Van Hentenryck, Ferdinando Fioretto

Moreover, when the feasible region is convex, a widely adopted class of post-processing steps is also guaranteed to improve accuracy.

Privacy Preserving

Differential Privacy of Hierarchical Census Data: An Optimization Approach

no code implementations28 Jun 2020 Ferdinando Fioretto, Pascal Van Hentenryck, Keyu Zhu

To address them, this paper presents a novel differential-privacy mechanism for releasing hierarchical counts of individuals.

Computational Efficiency

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