Full Text:   <5313>

Summary:  <598>

CLC number: TP181

On-line Access: 2024-08-27

Received: 2023-10-17

Revision Accepted: 2024-05-08

Crosschecked: 2023-09-18

Cited: 0

Clicked: 1571

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Lequan LIN

https://orcid.org/0009-0006-4677-7327

-   Go to

Article info.
Open peer comments

Frontiers of Information Technology & Electronic Engineering  2024 Vol.25 No.1 P.19-41

http://doi.org/10.1631/FITEE.2300310


Diffusion models for time-series applications: a survey


Author(s):  Lequan LIN, Zhengkun LI, Ruikun LI, Xuliang LI, Junbin GAO

Affiliation(s):  Discipline of Business Analytics, The University of Sydney Business School, Camperdown, NSW 2006, Australia; more

Corresponding email(s):   lequan.lin@sydney.edu.au, lizk@zts.com.cn, ruikun.li@sydney.edu.au, xuli3128@uni.sydney.edu.au, junbin.gao@sydney.edu.au

Key Words:  Diffusion models, Time-series forecasting, Time-series imputation, Denoising diffusion probabilistic models, Score-based generative models, Stochastic differential equations



Abstract: 
diffusion models, a family of generative models based on deep learning, have become increasingly prominent in cutting-edge machine learning research. With distinguished performance in generating samples that resemble the observed data, diffusion models are widely used in image, video, and text synthesis nowadays. In recent years, the concept of diffusion has been extended to time-series applications, and many powerful models have been developed. Considering the deficiency of a methodical summary and discourse on these models, we provide this survey as an elementary resource for new researchers in this area and to provide inspiration to motivate future research. For better understanding, we include an introduction about the basics of diffusion models. Except for this, we primarily focus on diffusion-based methods for time-series forecasting, imputation, and generation, and present them, separately, in three individual sections. We also compare different methods for the same application and highlight their connections if applicable. Finally, we conclude with the common limitation of diffusion-based methods and highlight potential future research directions.

Open peer comments: Debate/Discuss/Question/Opinion

<1>

Please provide your name, email address and a comment





Journal of Zhejiang University-SCIENCE, 38 Zheda Road, Hangzhou 310027, China
Tel: +86-571-87952783; E-mail: cjzhang@zju.edu.cn
Copyright © 2000 - 2025 Journal of Zhejiang University-SCIENCE