no code implementations • 4 Jun 2024 • Róbert István Busa-Fekete, Travis Dick, Claudio Gentile, Andrés Muñoz Medina, Adam Smith, Marika Swanberg
Across a range of experimental settings, we find that differentially private schemes dominate or match the privacy-utility tradeoff of more heuristic approaches.
3 code implementations • 12 Apr 2023 • CJ Carey, Travis Dick, Alessandro Epasto, Adel Javanmard, Josh Karlin, Shankar Kumar, Andres Munoz Medina, Vahab Mirrokni, Gabriel Henrique Nunes, Sergei Vassilvitskii, Peilin Zhong
In this work, we present a new theoretical framework to measure re-identification risk in such user representations.
no code implementations • 1 Mar 2023 • Travis Dick, Alex Kulesza, Ziteng Sun, Ananda Theertha Suresh
We propose a new definition of instance optimality for differentially private estimation algorithms.
1 code implementation • 6 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.
1 code implementation • 20 Oct 2022 • Mikhail Khodak, Kareem Amin, Travis Dick, Sergei Vassilvitskii
When applying differential privacy to sensitive data, we can often improve performance using external information such as other sensitive data, public data, or human priors.
1 code implementation • 19 Dec 2020 • Kaiwen Wang, Travis Dick, Maria-Florina Balcan
We provide the first utility guarantees for differentially private top-down decision tree learning in both the single machine and distributed settings.
1 code implementation • 12 Jun 2020 • Emily Diana, Travis Dick, Hadi Elzayn, Michael Kearns, Aaron Roth, Zachary Schutzman, Saeed Sharifi-Malvajerdi, Juba Ziani
We consider a variation on the classical finance problem of optimal portfolio design.
1 code implementation • 10 Feb 2020 • Avrim Blum, Travis Dick, Naren Manoj, Hongyang Zhang
We show a hardness result for random smoothing to achieve certified adversarial robustness against attacks in the $\ell_p$ ball of radius $\epsilon$ when $p>2$.
no code implementations • NeurIPS 2019 • Kareem Amin, Travis Dick, Alex Kulesza, Andres Munoz, Sergei Vassilvitskii
The covariance matrix of a dataset is a fundamental statistic that can be used for calculating optimum regression weights as well as in many other learning and data analysis settings.
no code implementations • 8 Aug 2019 • Maria-Florina Balcan, Dan DeBlasio, Travis Dick, Carl Kingsford, Tuomas Sandholm, Ellen Vitercik
We provide a broadly applicable theory for deriving generalization guarantees that bound the difference between the algorithm's average performance over the training set and its expected performance.
no code implementations • 22 Jul 2019 • Maria-Florina Balcan, Travis Dick, Dravyansh Sharma
We consider the class of piecewise Lipschitz functions, which is the most general online setting considered in the literature for the problem, and arises naturally in various combinatorial algorithm selection problems where utility functions can have sharp discontinuities.
no code implementations • ICLR 2020 • Maria-Florina Balcan, Travis Dick, Manuel Lang
Clustering is an important part of many modern data analysis pipelines, including network analysis and data retrieval.
no code implementations • 18 Apr 2019 • Maria-Florina Balcan, Travis Dick, Wesley Pegden
We apply our semi-bandit results to obtain the first provable guarantees for data-driven algorithm design for linkage-based clustering and we improve the best regret bounds for designing greedy knapsack algorithms.
no code implementations • NeurIPS 2019 • Maria-Florina Balcan, Travis Dick, Ritesh Noothigattu, Ariel D. Procaccia
In classic fair division problems such as cake cutting and rent division, envy-freeness requires that each individual (weakly) prefer his allocation to anyone else's.
no code implementations • NeurIPS 2018 • Maria-Florina Balcan, Travis Dick, Colin White
Algorithms for clustering points in metric spaces is a long-studied area of research.
no code implementations • ICML 2018 • Maria-Florina Balcan, Travis Dick, Tuomas Sandholm, Ellen Vitercik
Tree search algorithms recursively partition the search space to find an optimal solution.
no code implementations • 8 Nov 2017 • Maria-Florina Balcan, Travis Dick, Ellen Vitercik
We present general techniques for online and private optimization of the sum of dispersed piecewise Lipschitz functions.
no code implementations • ICML 2017 • Maria-Florina Balcan, Travis Dick, YIngyu Liang, Wenlong Mou, Hongyang Zhang
We study the problem of clustering sensitive data while preserving the privacy of individuals represented in the dataset, which has broad applications in practical machine learning and data analysis tasks.
no code implementations • 15 Dec 2015 • Travis Dick, Mu Li, Venkata Krishna Pillutla, Colin White, Maria Florina Balcan, Alex Smola
In distributed machine learning, data is dispatched to multiple machines for processing.
no code implementations • 10 Nov 2015 • Maria Florina Balcan, Travis Dick, Yishay Mansour
We present a new perspective on the popular multi-class algorithmic techniques of one-vs-all and error correcting output codes.