English

Data Augmentation with Variational Autoencoders and Manifold Sampling

Machine Learning 2021-09-29 v3 Machine Learning

Abstract

We propose a new efficient way to sample from a Variational Autoencoder in the challenging low sample size setting. This method reveals particularly well suited to perform data augmentation in such a low data regime and is validated across various standard and real-life data sets. In particular, this scheme allows to greatly improve classification results on the OASIS database where balanced accuracy jumps from 80.7% for a classifier trained with the raw data to 88.6% when trained only with the synthetic data generated by our method. Such results were also observed on 3 standard data sets and with other classifiers. A code is available at https://github.com/clementchadebec/Data_Augmentation_with_VAE-DALI.

Keywords

Cite

@article{arxiv.2103.13751,
  title  = {Data Augmentation with Variational Autoencoders and Manifold Sampling},
  author = {Clément Chadebec and Stéphanie Allassonnière},
  journal= {arXiv preprint arXiv:2103.13751},
  year   = {2021}
}
R2 v1 2026-06-24T00:32:56.592Z