Source Code Data Augmentation for Deep Learning: A Survey

• URL: http://arxiv.org/abs/2305.19915v4
• Date: Mon, 13 Nov 2023 17:34:53 GMT
• Title: Source Code Data Augmentation for Deep Learning: A Survey
• Authors: Terry Yue Zhuo, Zhou Yang, Zhensu Sun, Yufei Wang, Li Li, Xiaoning Du, Zhenchang Xing, David Lo
• Abstract summary: We conduct a comprehensive survey of data augmentation for source code. We highlight the general strategies and techniques to optimize the DA quality. We outline the prevailing challenges and potential opportunities for future research.
• Score: 32.035973285175075
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: The increasingly popular adoption of deep learning models in many critical source code tasks motivates the development of data augmentation (DA) techniques to enhance training data and improve various capabilities (e.g., robustness and generalizability) of these models. Although a series of DA methods have been proposed and tailored for source code models, there lacks a comprehensive survey and examination to understand their effectiveness and implications. This paper fills this gap by conducting a comprehensive and integrative survey of data augmentation for source code, wherein we systematically compile and encapsulate existing literature to provide a comprehensive overview of the field. We start with an introduction of data augmentation in source code and then provide a discussion on major representative approaches. Next, we highlight the general strategies and techniques to optimize the DA quality. Subsequently, we underscore techniques useful in real-world source code scenarios and downstream tasks. Finally, we outline the prevailing challenges and potential opportunities for future research. In essence, we aim to demystify the corpus of existing literature on source code DA for deep learning, and foster further exploration in this sphere. Complementing this, we present a continually updated GitHub repository that hosts a list of update-to-date papers on DA for source code modeling, accessible at \url{https://github.com/terryyz/DataAug4Code}.

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