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- W3207613863 abstract "Air pollution forecasting, particularly of PM 2.5 levels, can be used not only to deliver effective warning information to the public but also to provide support for decisions regarding the control and treatment of air pollution problems. However, there are still some challenging issues in air pollution forecasting that urgently need to be solved, such as how to handle and model outliers, improve forecasting stability, and correct forecasting results. In this context, this study proposes an outlier-robust forecasting system to attempt to tackle the abovementioned issues and bridge the gap in the current research. Specifically, the system developed consists of two parts that deal with point and interval forecasting, respectively. For point forecasting, a data preprocessing module is proposed based on outlier handling and data decomposition to mitigate the negative influences of outliers and noise, which can also help the model capture the main characteristics of the original time series. Meanwhile, an outlier-robust forecasting module is designed for better modeling of the preprocessed data. For the model to further improve its accuracy, a nonlinear correction module based on an error ensemble strategy is developed that can provide more accurate forecasting results. Finally, the interval forecasting part of the system is based on a newly proposed artificial intelligence–based distribution evaluation and the results of the point forecasting part to present the range of future changes. Experimental results and analysis utilizing daily PM 2.5 concentration from two provincial capital cities in China are discussed to verify the superiority and effectiveness of the system developed, which can be considered an effective technique for point and interval forecasting of daily PM 2.5 concentration." @default.
- W3207613863 created "2021-10-25" @default.
- W3207613863 creator A5033935308 @default.
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- W3207613863 date "2021-10-18" @default.
- W3207613863 modified "2023-10-14" @default.
- W3207613863 title "An Outlier-Robust Point and Interval Forecasting System for Daily PM2.5 Concentration" @default.
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- W3207613863 doi "https://doi.org/10.3389/fenvs.2021.747101" @default.
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