Improving novelty detection using the reconstructions of nearest neighbours

We show that using nearest neighbours in the latent space of autoencoders (AE) significantly improves performance of semi-supervised novelty detection in both single and multi-class contexts. Autoencoding methods detect novelty by learning to differentiate between the non-novel training class(es) an...

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Bibliographic Details
Main Authors: Michael Mesarcik, Elena Ranguelova, Albert-Jan Boonstra, Rob V. van Nieuwpoort
Format: Article
Language:English
Published: Elsevier 2022-07-01
Series:Array
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590005622000388