Robert Boschgmbh

Chaithanya Kumar Mummadi

Jan Hendrik Metzen

Volker Fischer

Kilian Rambach

Thomas Pfeil

Robin Hutmacher

Evgeny Levinkov

A computer-implemented method for training a classifier. The classifier is configured to determine an output signal characterizing a classification of an input signal. The training of the classifier includes: determining a first training input signal; determining a first latent representation comprising a plurality of factors based on the first training input signal by means of an invertible factorization model, wherein the invertible factorization model, determining a second latent representation by adapting at least one factor of the first latent representation; determining a second training input signal based on the second latent representation by means of the invertible factorization model; and training the classifier based on the second training input signal.

Device and method for training a classifier using an invertible factorization model

A method for training a neural network. The method includes providing learning input images and associated learning output data; providing auxiliary input images; generating modifications of these auxiliary input images by introducing at least one predefined change into them; supplying the modifications to the neural network; ascertaining predictions for the predefined change, using output data onto which the neural network maps the modifications; assessing deviations of the predictions from the predefined change, using an auxiliary cost function; optimizing parameters of the neural network to improve the assessment by the auxiliary cost function during further processing of auxiliary input images; supplying the learning input images to the neural network; assessing deviations of the output data, thus obtained, from the learning output data, using a main cost function; optimizing parameters of the neural network to improve the assessment by the main cost function during further processing of learning input images.

Data-based updating of the training of classifier networks

A method for generating a universal data signal interference for generating a manipulated data signal for deceiving a first machine learning system, which is configured to ascertain a semantic segmentation of a received one-dimensional or multidimensional data signal, The method includes a) ascertaining a training data set that includes pairs of data signals and associated desired semantic segmentations, b) generating the data signal interference, as a function of the data signals of the training data set, of the associated desired semantic segmentation, as well as of estimated semantic segmentations of the data signals acted upon by the data signal interference.

Method and device for improving the robustness against 'adversarial examples'

A method for generating a manipulated data signal for misleading a first machine learning system, which is designed to ascertain a semantic segmentation of a received one-dimensional or multi-dimensional data signal, the method having the following steps: a) ascertaining a desired semantic segmentation of the manipulated data signal; and b) generating the manipulated signal as a function of the received data signal and the ascertained desired semantic segmentation as well as an estimated semantic segmentation of the manipulated data signal.

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Heimsheim, Germany

Chaithanya Kumar Mummadi