A Survey on Data Synthesis and Augmentation for Large Language Models

• URL: http://arxiv.org/abs/2410.12896v1
• Date: Wed, 16 Oct 2024 16:12:39 GMT
• Title: A Survey on Data Synthesis and Augmentation for Large Language Models
• Authors: Ke Wang, Jiahui Zhu, Minjie Ren, Zeming Liu, Shiwei Li, Zongye Zhang, Chenkai Zhang, Xiaoyu Wu, Qiqi Zhan, Qingjie Liu, Yunhong Wang,
• Abstract summary: This paper reviews and summarizes data generation techniques throughout the lifecycle of Large Language Models. We discuss the current constraints faced by these methods and investigate potential pathways for future development and research.
• Score: 35.59526251210408
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: The success of Large Language Models (LLMs) is inherently linked to the availability of vast, diverse, and high-quality data for training and evaluation. However, the growth rate of high-quality data is significantly outpaced by the expansion of training datasets, leading to a looming data exhaustion crisis. This underscores the urgent need to enhance data efficiency and explore new data sources. In this context, synthetic data has emerged as a promising solution. Currently, data generation primarily consists of two major approaches: data augmentation and synthesis. This paper comprehensively reviews and summarizes data generation techniques throughout the lifecycle of LLMs, including data preparation, pre-training, fine-tuning, instruction-tuning, preference alignment, and applications. Furthermore, We discuss the current constraints faced by these methods and investigate potential pathways for future development and research. Our aspiration is to equip researchers with a clear understanding of these methodologies, enabling them to swiftly identify appropriate data generation strategies in the construction of LLMs, while providing valuable insights for future exploration.

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