Search Results for author: Sina Däubener

Found 8 papers, 1 papers with code

On the Limitations of Model Stealing with Uncertainty Quantification Models

no code implementations9 May 2023 David Pape, Sina Däubener, Thorsten Eisenhofer, Antonio Emanuele Cinà, Lea Schönherr

We realize that during training, the models tend to have similar predictions, indicating that the network diversity we wanted to leverage using uncertainty quantification models is not (high) enough for improvements on the model stealing task.

Uncertainty Quantification

How Sampling Impacts the Robustness of Stochastic Neural Networks

no code implementations22 Apr 2022 Sina Däubener, Asja Fischer

Stochastic neural networks (SNNs) are random functions whose predictions are gained by averaging over multiple realizations.

Adversarial Attack

SmoothLRP: Smoothing Explanations of Neural Network Decisions by Averaging over Stochastic Input Variations

no code implementations1 Jan 2021 Arne Peter Raulf, Ben Luis Hack, Sina Däubener, Axel Mosig, Asja Fischer

With the excessive use of neural networks in safety critical domains the need for understandable explanations of their predictions is rising.

Efficient Calculation of Adversarial Examples for Bayesian Neural Networks

no code implementations pproximateinference AABI Symposium 2021 Sina Däubener, Joel Frank, Thorsten Holz, Asja Fischer

In this paper we propose to efficiently attack Bayesian neural networks with adversarial examples calculated for a deterministic network with parameters given by the mean of the posterior distribution.

Detecting Adversarial Examples for Speech Recognition via Uncertainty Quantification

1 code implementation24 May 2020 Sina Däubener, Lea Schönherr, Asja Fischer, Dorothea Kolossa

The neural networks for uncertainty quantification simultaneously diminish the vulnerability to the attack, which is reflected in a lower recognition accuracy of the malicious target text in comparison to a standard hybrid ASR system.

Automatic Speech Recognition Automatic Speech Recognition (ASR) +3

Predictive Uncertainty Quantification with Compound Density Networks

no code implementations4 Feb 2019 Agustinus Kristiadi, Sina Däubener, Asja Fischer

Despite the huge success of deep neural networks (NNs), finding good mechanisms for quantifying their prediction uncertainty is still an open problem.

Bayesian Inference Uncertainty Quantification

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