Search Results for author: Terrance Liu

Found 8 papers, 5 papers with code

Generating Private Synthetic Data with Genetic Algorithms

1 code implementation5 Jun 2023 Terrance Liu, Jingwu Tang, Giuseppe Vietri, Zhiwei Steven Wu

We study the problem of efficiently generating differentially private synthetic data that approximate the statistical properties of an underlying sensitive dataset.

Confidence-Ranked Reconstruction of Census Microdata from Published Statistics

1 code implementation6 Nov 2022 Travis Dick, Cynthia Dwork, Michael Kearns, Terrance Liu, Aaron Roth, Giuseppe Vietri, Zhiwei Steven Wu

Our attacks significantly outperform those that are based only on access to a public distribution or population from which the private dataset $D$ was sampled, demonstrating that they are exploiting information in the aggregate statistics $Q(D)$, and not simply the overall structure of the distribution.

Reconstruction Attack

Private Synthetic Data with Hierarchical Structure

no code implementations13 Jun 2022 Terrance Liu, Zhiwei Steven Wu

Moreover, it has not yet been established how one can generate synthetic data at both the group and individual-level while capturing such statistics.

Synthetic Data Generation

Learning Language and Multimodal Privacy-Preserving Markers of Mood from Mobile Data

no code implementations ACL 2021 Paul Pu Liang, Terrance Liu, Anna Cai, Michal Muszynski, Ryo Ishii, Nicholas Allen, Randy Auerbach, David Brent, Ruslan Salakhutdinov, Louis-Philippe Morency

Using computational models, we find that language and multimodal representations of mobile typed text (spanning typed characters, words, keystroke timings, and app usage) are predictive of daily mood.

Privacy Preserving

Iterative Methods for Private Synthetic Data: Unifying Framework and New Methods

1 code implementation NeurIPS 2021 Terrance Liu, Giuseppe Vietri, Zhiwei Steven Wu

We study private synthetic data generation for query release, where the goal is to construct a sanitized version of a sensitive dataset, subject to differential privacy, that approximately preserves the answers to a large collection of statistical queries.

Synthetic Data Generation

Leveraging Public Data for Practical Private Query Release

1 code implementation17 Feb 2021 Terrance Liu, Giuseppe Vietri, Thomas Steinke, Jonathan Ullman, Zhiwei Steven Wu

In many statistical problems, incorporating priors can significantly improve performance.

Think Locally, Act Globally: Federated Learning with Local and Global Representations

4 code implementations6 Jan 2020 Paul Pu Liang, Terrance Liu, Liu Ziyin, Nicholas B. Allen, Randy P. Auerbach, David Brent, Ruslan Salakhutdinov, Louis-Philippe Morency

To this end, we propose a new federated learning algorithm that jointly learns compact local representations on each device and a global model across all devices.

Federated Learning Representation Learning +2

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