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Author:

Li, Xiaoli (Li, Xiaoli.) (Scholars:李晓理) | Zhang, Shan (Zhang, Shan.) | Wang, Kang (Wang, Kang.)

Indexed by:

EI Scopus SCIE

Abstract:

For the severe haze situation in the Beijing-Tianjin-Hebei region, conventional fine particulate matter (PM2.5) concentration prediction methods based on pollutant data face problems such as incomplete data, which may lead to poor prediction performance. Therefore, this paper proposes a method of predicting the PM2.5 concentration based on image analysis technology that combines image data, which can reflect the original weather conditions, with currently popular machine learning methods. First, based on local parameter estimation, autoregressive (AR) model analysis and local estimation of the increase in image blur, we extract features from the weather images using an approach inspired by free energy and a no-reference robust metric model. Next, we compare the coefficient energy and contrast difference of each pixel in the AR model and then use the percentages to calculate the image sharpness to derive the overall mass fraction. Furthermore, the results are compared. The relationship between residual value and PM2.5 concentration is fitted by generalized Gauss distribution (GGD) model. Finally, nonlinear mapping is performed via the wavelet neural network (WNN) method to obtain the PM2.5 concentration. Experimental results obtained on real data show that the proposed method offers an improved prediction accuracy and lower root mean square error (RMSE).

Keyword:

prediction Autoregressive model PM2.5 concentration feature extraction Wavelet neural network

Author Community:

  • [ 1 ] [Li, Xiaoli]Minist Educ, Beijing Key Lab Computat Intelligence & Intellige, Beijing 100124, Peoples R China
  • [ 2 ] [Li, Xiaoli]Minist Educ, Engn Res Ctr Digital Community, Beijing 100124, Peoples R China
  • [ 3 ] [Li, Xiaoli]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 4 ] [Zhang, Shan]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 5 ] [Wang, Kang]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China
  • [ 6 ] [Li, Xiaoli]Beijing Future Network Sci & Technol Innovat Ctr, Beijing 100124, Peoples R China

Reprint Author's Address:

  • 李晓理

    [Li, Xiaoli]Minist Educ, Beijing Key Lab Computat Intelligence & Intellige, Beijing 100124, Peoples R China;;[Li, Xiaoli]Minist Educ, Engn Res Ctr Digital Community, Beijing 100124, Peoples R China;;[Li, Xiaoli]Beijing Univ Technol, Fac Informat Technol, Beijing 100124, Peoples R China;;[Li, Xiaoli]Beijing Future Network Sci & Technol Innovat Ctr, Beijing 100124, Peoples R China

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Source :

KSII TRANSACTIONS ON INTERNET AND INFORMATION SYSTEMS

ISSN: 1976-7277

Year: 2020

Issue: 2

Volume: 14

Page: 907-923

1 . 5 0 0

JCR@2022

ESI Discipline: COMPUTER SCIENCE;

ESI HC Threshold:132

Cited Count:

WoS CC Cited Count: 2

SCOPUS Cited Count: 2

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 6

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