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Dergiler / Atmospheric Pollution Research / 2020 / Cilt: 11 - Sayı: 7

PM2.5 concentrations forecasting using a new multi-objective feature selection and ensemble framework

Haiping WU
Hui LIU
Zhu DUAN
Sayfa
1187–1198
DOI
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⚡ TL;DR(1 Cümlede Hızlı Çıkarım)

The proposed hybrid computing model can generate accurate forecasting results with relatively small computational time, when compared with several existing models.

📌 3 Maddede Bu Makale

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Amaç & Hipotez:Multi-step PM2.5 concentrations forecasting can help reduce the negative impact of PM2.5 on public health.
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Temel Bulgular & Veri:In this study, a hybrid method is proposed for multi-step PM2.5 concentrations forecasting.
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Sonuç & Katkı:The proposed hybrid computing model can generate accurate forecasting results with relatively small computational time, when compared with several existing models.
🔬Tür:Modelleme & Sayısal Simülasyon
📍Kapsam:Genişletilmiş Akademik Örneklem
⚙️Değişkenler:Alan Parametreleri

Özet

Multi-step PM2.5 concentrations forecasting can help reduce the negative impact of PM2.5 on public health. In this study, a hybrid method is proposed for multi-step PM2.5 concentrations forecasting. The proposed hybrid computing framework consists of three modules: hybrid data pretreatment, multi-objective feature selection and ensemble predicting. The hybrid data pretreatment can smooth the original series, generate more predictable sublayers. The multi-objective feature selection can produce the optimal input structure by rough selection and fine selection. The ensemble predicting can generate the forecasting results with the selected input structure. Four hourly pollutant data from four different cities in China are utilized to verify the effectiveness of the proposed model. The studying results indicated that: (a) the computational framework of the proposed model is proved to be effective; (b) the selected algorithms are advanced when compared with the alternative algorithms; (c) the 1-step mean absolute errors of the proposed model and three existing models on data from Hohhot are 3.2804 μg/m3 , 7.0232 μg/m3 , 5.1644 μg/m3 and 3.4720 μg/m3 , respectively. The proposed hybrid computing model can generate accurate forecasting results with relatively small computational time, when compared with several existing models.

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Bu Makaleye Atıf Yap

WU, H., LIU, H., DUAN, Z. (2020). PM2.5 concentrations forecasting using a new multi-objective feature selection and ensemble framework. Atmospheric Pollution Research, Cilt: 11 - Sayı: 7, 1187–1198. https://ajindex.com/articles/141874

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Kaynakça (10)

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