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Ambient air pollutants concentration prediction during the COVID-19: A method based on transfer learning.
Chen, Shuixia; Xu, Zeshui; Wang, Xinxin; Zhang, Chenxi.
  • Chen S; Business School, Sichuan University, Chengdu 610064, China.
  • Xu Z; Business School, Sichuan University, Chengdu 610064, China.
  • Wang X; Business School, Sichuan University, Chengdu 610064, China.
  • Zhang C; Business School, Sichuan University, Chengdu 610064, China.
Knowl Based Syst ; 258: 109996, 2022 Dec 22.
Article in English | MEDLINE | ID: covidwho-2069433
ABSTRACT
Research on the correlation analysis between COVID-19 and air pollution has attracted increasing attention since the COVID-19 pandemic. While many relevant issues have been widely studied, research into ambient air pollutant concentration prediction (APCP) during COVID-19 is still in its infancy. Most of the existing study on APCP is based on machine learning methods, which are not suitable for APCP during COVID-19 due to the different distribution of historical observations before and after the pandemic. Therefore, to fulfill the predictive task based on the historical observations with a different distribution, this paper proposes an improved transfer learning model combined with machine learning for APCP during COVID-19. Specifically, this paper employs the Gaussian mixture method and an optimization algorithm to obtain a new source domain similar to the target domain for further transfer learning. Then, several commonly used machine learning models are trained in the new source domain, and these well-trained models are transferred to the target domain to obtain APCP results. Based on the real-world dataset, the experimental results suggest that, by using the improved machine learning methods based on transfer learning, our method can achieve the prediction with significantly high accuracy. In terms of managerial insights, the effects of influential factors are analyzed according to the relationship between these influential factors and prediction results, while their importance is ranked through their average marginal contribution and partial dependence plots.
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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Observational study / Prognostic study Language: English Journal: Knowl Based Syst Year: 2022 Document Type: Article Affiliation country: J.knosys.2022.109996

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Full text: Available Collection: International databases Database: MEDLINE Type of study: Experimental Studies / Observational study / Prognostic study Language: English Journal: Knowl Based Syst Year: 2022 Document Type: Article Affiliation country: J.knosys.2022.109996