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Diffusion models in text generation: a survey

delete2024-02-23
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OA
AI
Q
Qiuhua Yi
X
Xiangfan Chen
C
Chenwei Zhang
Z
Zehai Zhou
L
Linan Zhu
X
Xiangjie Kong *
DOI:10.7717/peerj-cs.1905delete
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Abstract

Abstract

En 中文
Diffusion models are a kind of math-based model that were first applied to image generation. Recently, they have drawn wide interest in natural language generation (NLG), a sub-field of natural language processing (NLP), due to their capability to generate varied and high-quality text outputs. In this article, we conduct a comprehensive survey on the application of diffusion models in text generation. We divide text generation into three parts (conditional, unconstrained, and multi-mode text generation, respectively) and provide a detailed introduction. In addition, considering that autoregressive-based pre-training models (PLMs) have recently dominated text generation, we conduct a detailed comparison between diffusion models and PLMs in multiple dimensions, highlighting their respective advantages and limitations. We believe that integrating PLMs into diffusion is a valuable research avenue. We also discuss current challenges faced by diffusion models in text generation and propose potential future research directions, such as improving sampling speed to address scalability issues and exploring multi-modal text generation. By providing a comprehensive analysis and outlook, this survey will serve as a valuable reference for researchers and practitioners interested in utilizing diffusion models for text generation tasks.
Keywords:
Diffusion models
Text generation
Natural language generation
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Journal

PeerJ Computer Science cover
PeerJ Computer Science
IF:
2.5
Papers:
3.4K
Citations:
6.9K

Organization

U
University of Hong Kong
Scholars:
4.1W
Papers: 3.9W
Citations: 10.1W
Z
zhejiang university of technology
Scholars:
3.3W
Papers: 2.0W
Citations: 22