Search Results for author: Esfandiar Mohammadi

Found 6 papers, 2 papers with code

S-GBDT: Frugal Differentially Private Gradient Boosting Decision Trees

no code implementations21 Sep 2023 Moritz Kirschte, Thorsten Peinemann, Joshua Stock, Carlos Cotrini, Esfandiar Mohammadi

For the Abalone dataset for $\varepsilon=0. 54$ we achieve $R^2$-score of $0. 47$ which is very close to the $R^2$-score of $0. 54$ for the nonprivate version of GBDT.

4k Privacy Preserving

DPM: Clustering Sensitive Data through Separation

no code implementations6 Jul 2023 Yara Schütt, Johannes Liebenow, Tanya Braun, Marcel Gehrke, Florian Thaeter, Esfandiar Mohammadi

Privacy-preserving clustering groups data points in an unsupervised manner whilst ensuring that sensitive information remains protected.

Clustering Privacy Preserving

Distributed DP-Helmet: Scalable Differentially Private Non-interactive Averaging of Single Layers

1 code implementation3 Nov 2022 Moritz Kirschte, Sebastian Meiser, Saman Ardalan, Esfandiar Mohammadi

We provide experimental evidence that blind averaging for SVMs and single Softmax-layer (Softmax-SLP) can have a strong utility-privacy tradeoff: we reach an accuracy of 86% on CIFAR-10 for $\varepsilon$ = 0. 4 and 1, 000 users, of 44% on CIFAR-100 for $\varepsilon$ = 1. 2 and 100 users, and of 39% on federated EMNIST for $\varepsilon$ = 0. 4 and 3, 400 users, all after a SimCLR-based pretraining.

Federated Learning

Learning Numeric Optimal Differentially Private Truncated Additive Mechanisms

1 code implementation27 Jul 2021 David M. Sommer, Lukas Abfalterer, Sheila Zingg, Esfandiar Mohammadi

An additive mechanism with truncated noise (i. e., with bounded range) can offer such hard bounds.

Responsible and Regulatory Conform Machine Learning for Medicine: A Survey of Challenges and Solutions

no code implementations20 Jul 2021 Eike Petersen, Yannik Potdevin, Esfandiar Mohammadi, Stephan Zidowitz, Sabrina Breyer, Dirk Nowotka, Sandra Henn, Ludwig Pechmann, Martin Leucker, Philipp Rostalski, Christian Herzog

This survey provides an overview of the technical and procedural challenges involved in creating medical machine learning systems responsibly and in conformity with existing regulations, as well as possible solutions to address these challenges.

BIG-bench Machine Learning Federated Learning +1

Computational Soundness for Dalvik Bytecode

no code implementations15 Aug 2016 Michael Backes, Robert Künnemann, Esfandiar Mohammadi

Second, we show that our abstractions are faithful by providing the first computational soundness result for Dalvik bytecode, i. e., the absence of attacks against our symbolically abstracted program entails the absence of any attacks against a suitable cryptographic program realization.

Cryptography and Security

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