Search Results for author: Thomas Humphries

Found 4 papers, 2 papers with code

FastLloyd: Federated, Accurate, Secure, and Tunable $k$-Means Clustering with Differential Privacy

no code implementations3 May 2024 Abdulrahman Diaa, Thomas Humphries, Florian Kerschbaum

By utilizing the computational DP model, we design a lightweight, secure aggregation-based approach that achieves four orders of magnitude speed-up over state-of-the-art related work.

Constrained Clustering Privacy Preserving

Self-Attention Generative Adversarial Network for Iterative Reconstruction of CT Images

no code implementations23 Dec 2021 Ruiwen Xing, Thomas Humphries, Dong Si

Conventional reconstruction algorithms can be used if the X-ray data are adequately sampled and of high quality; however, concerns such as reducing dose to the patient, or geometric limitations on data acquisition, may result in low quality or incomplete data.

Computed Tomography (CT) Denoising +2

Investigating Membership Inference Attacks under Data Dependencies

1 code implementation23 Oct 2020 Thomas Humphries, Simon Oya, Lindsey Tulloch, Matthew Rafuse, Ian Goldberg, Urs Hengartner, Florian Kerschbaum

Our results reveal that training set dependencies can severely increase the performance of MIAs, and therefore assuming that data samples are statistically independent can significantly underestimate the performance of MIAs.

BIG-bench Machine Learning Inference Attack +1

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