Denoising Autoencoders for Overgeneralization in Neural Networks (English)

In: IEEE Transactions on Pattern Analysis and Machine Intelligence   ;  42 ,  4  ;  998-1004  ;  2020

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Despite recent developments that allowed neural networks to achieve impressive performance on a variety of applications, these models are intrinsically affected by the problem of overgeneralization, due to their partitioning of the full input space into the fixed set of target classes used during training. Thus it is possible for novel inputs belonging to categories unknown during training or even completely unrecognizable to humans to fool the system into classifying them as one of the known classes, even with a high degree of confidence. This problem can lead to security problems in critical applications, and is closely linked to open set recognition and 1-class recognition. This paper presents a novel way to compute a confidence score using the reconstruction error of denoising autoencoders and shows how it can correctly identify the regions of the input space close to the training distribution. The proposed solution is tested on benchmarks of ‘fooling’, open set recognition and 1-class recognition constructed from the MNIST and Fashion-MNIST datasets.

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    Denoising Autoencoders for Overgeneralization in Neural Networks
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    IEEE
  • Year of publication:
    2020
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    996699 byte
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    Article (Journal)
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    Electronic Resource
  • Language:
    English
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Table of contents – Volume 42, Issue 4

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The tables of contents are generated automatically and are based on the data records of the individual contributions available in the index of the TIB portal. The display of the Tables of Contents may therefore be incomplete.

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2020 COMPSAC CFP
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C1
Table of Contents
| 2020
C2
Cover
| 2020