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A Survey on Data Augmentation for Text Classification - 2021

Research Area:  Machine Learning

Abstract:

Data augmentation, the artificial creation of training data for machine learning by transformations, is a widely studied research field across machine learning disciplines. While it is useful for increasing the generalization capabilities of a model, it can also address many other challenges and problems, from overcoming a limited amount of training data over regularizing the objective to limiting the amount data used to protect privacy. Based on a precise description of the goals and applications of data augmentation (C1) and a taxonomy for existing works (C2), this survey is concerned with data augmentation methods for textual classification and aims to achieve a concise and comprehensive overview for researchers and practitioners (C3). Derived from the taxonomy, we divided more than 100 methods into 12 different groupings and provide state-of-the-art references expounding which methods are highly promising (C4). Finally, research perspectives that may constitute a building block for future work are given (C5).

Author(s) Name:  Markus Bayer, Marc-AndrĂ© Kaufhold, Christian Reuter

Journal name:  Computation and Language

Conferrence name:  

Publisher name:  arXiv:2107.03158

DOI:  https://doi.org/10.48550/arXiv.2107.03158

Volume Information: