A Pilot Study on the Use of Generative Adversarial Networks for Data Augmentation of Time Series

Abstract

Data augmentation is needed to use Deep Learning methods for the typically small time series datasets. There is limited literature on the evaluation of the performance of the use of Generative Adversarial Networks for time series data augmentation. We describe and discuss the results of a pilot study that extends a recent evaluation study of two families of data augmentation methods for time series (i.e., transformation-based methods and pattern-mixing methods), and provide recommendations for future work in this important area of research.

Keywords

• data augmentation
• deep learning
• generative adversarial networks
• time series