activity
20152020
most citedPSI (Ψ): a Private data Sharing Interface

16 citations · 29 across the 6 of their papers we have counts for

collaborators

8 papers

cs.DS2020

Spectral Sparsification via Bounded-Independence Sampling

Dean Doron, Jack Murtagh, Salil Vadhan +1

We give a deterministic, nearly logarithmic-space algorithm for mild spectral sparsification of undirected graphs. Given a weighted, undirected graph on vertices described…

cs.CC2019

High-precision Estimation of Random Walks in Small Space

AmirMahdi Ahmadinejad, Jonathan Kelner, Jack Murtagh +3

We provide a deterministic -space algorithm for estimating random walk probabilities on undirected graphs, and more generally Eulerian directed graphs, to within…

cs.CC2019

Deterministic Approximation of Random Walks in Small Space

Jack Murtagh, Omer Reingold, Aaron Sidford +1

We give a deterministic, nearly logarithmic-space algorithm that given an undirected graph , a positive integer , and a set of vertices, approximates the conductance of $…

cs.LG2018★ 7 cited

Thwarting Adversarial Examples: An -RobustSparse Fourier Transform

Mitali Bafna, Jack Murtagh, Nikhil Vyas

We give a new algorithm for approximating the Discrete Fourier transform of an approximately sparse signal that has been corrupted by worst-case noise, namely a bounded numbe…

cs.HC2018★ 4 cited

Usable Differential Privacy: A Case Study with PSI

Jack Murtagh, Kathryn Taylor, George Kellaris +1

Differential privacy is a promising framework for addressing the privacy concerns in sharing sensitive datasets for others to analyze. However differential privacy is a highly tech…

cs.CC2017

Derandomization Beyond Connectivity: Undirected Laplacian Systems in Nearly Logarithmic Space

Jack Murtagh, Omer Reingold, Aaron Sidford +1

We give a deterministic -space algorithm for approximately solving linear systems given by Laplacians of undirected graphs, and consequently also approximating h…