Search Results for author: Elena Ranguelova

Found 2 papers, 2 papers with code

The ROAD to discovery: machine learning-driven anomaly detection in radio astronomy spectrograms

1 code implementation3 Jul 2023 Michael Mesarcik, Albert-Jan Boonstra, Marco Iacobelli, Elena Ranguelova, Cees de Laat, Rob van Nieuwpoort

We propose a new machine learning anomaly detection framework for classifying both commonly occurring anomalies in radio telescopes as well as detecting unknown rare anomalies that the system has potentially not yet seen.

Anomaly Detection Astronomy +1

Improving Novelty Detection using the Reconstructions of Nearest Neighbours

1 code implementation11 Nov 2021 Michael Mesarcik, Elena Ranguelova, Albert-Jan Boonstra, Rob V. van Nieuwpoort

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.

Anomaly Detection Data Augmentation +1

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