1 code implementation • 3 Apr 2023 • Anass Bairouk, Marc Chaumont, Dominique Fouchez, Jerome Paquet, Frédéric Comby, Julian Bautista
In this work, we solved various problems the datasets tend to suffer from and we present new results for classifications using astronomical image time series with an increase in accuracy of 13%, compared to state-of-the-art approaches that use image time series, and a 12% increase, compared to approaches that use light curves.
1 code implementation • 22 Feb 2023 • Kévin Planolles, Marc Chaumont, Frédéric Comby
In this paper, we study the performance invariance of convolutional neural networks when confronted with variable image sizes in the context of a more "wild steganalysis".
no code implementations • 5 Jan 2021 • Hugo Ruiz, Mehdi Yedroudj, Marc Chaumont, Frédéric Comby, Gérard Subsol
In this paper, we describe a large JPEG database composed of 2 million colour and grey-scale images.
Cryptography and Security
1 code implementation • 2 Jan 2019 • Anthony Brunel, Johanna Pasquet, Jérôme Pasquet, Nancy Rodriguez, Frédéric Comby, Dominique Fouchez, Marc Chaumont
The first one is adapted to time series and thus to the treatment of supernovae light-curves.
no code implementations • 12 Jan 2018 • Mehdi Yedroudj, Marc Chaumont, Frédéric Comby
To our knowledge, no study has been performed on the enrichment impact of a learning database on the steganalysis performance.