Journal of Northeast Agricultural University最新文献

筛选

英文中文

A new hybrid prediction model of PM_2.5 concentration based on secondary decomposition and optimized extreme learning machine. 基于二次分解和优化极限学习机的新型 PM2.5 浓度混合预测模型。

IF 5.8

Journal of Northeast Agricultural University Pub Date : 2022-09-01 Epub Date: 2022-05-06 DOI: 10.1007/s11356-022-20375-y

Hong Yang, Junlin Zhao, Guohui Li

{"title":"A new hybrid prediction model of PM2.5 concentration based on secondary decomposition and optimized extreme learning machine.","authors":"Hong Yang, Junlin Zhao, Guohui Li","doi":"10.1007/s11356-022-20375-y","DOIUrl":"10.1007/s11356-022-20375-y","url":null,"abstract":"As air pollution worsens, the prediction of PM2.5 concentration becomes increasingly important for public health. This paper proposes a new hybrid prediction model of PM2.5 concentration based on complete ensemble empirical mode decomposition with adaptive noise (CEEMDAN), amplitude-aware permutation entropy (AAPE), variational mode decomposition improved by marine predators algorithm (MPA-VMD), and extreme learning machine optimized by chimp optimization algorithm (ChOA-ELM), named CEEMDAN-AAPE-MPA-VMD-ChOA-ELM. Firstly, CEEMDAN is used to decompose the original data, and AAPE is used to quantify the complexity of all IMF components. Secondly, MPA-VMD is used to decompose the IMF component with the maximum AAPE. Lastly, ChOA-ELM is used to predict all IMF components, and all prediction results are reconstructed to obtain the final prediction results. The proposed model combines the advantages of secondary decomposition technique, feature analysis, and optimization algorithm, which can predict PM2.5 concentration accurately. PM2.5 concentrations at hourly intervals collected from March 1, 2021, to March 31, 2021, in Shanghai and Shenyang, China, are used for experimental study and DM test. The experimental results in Shanghai show that the RMSE, MAE, MAPE, and R2 of the proposed model are 1.0676, 0.7685, 0.0181, and 0.9980 respectively, which is better than all comparison models at 90% confidence level. In Shenyang, the RMSE, MAE, MAPE, and R2 of the proposed model are 1.4399, 1.1258, 0.0389, and 0.9976, respectively, which is better than all comparison models at 95% confidence level.","PeriodicalId":16565,"journal":{"name":"Journal of Northeast Agricultural University","volume":"19 1","pages":"67214-67241"},"PeriodicalIF":5.8,"publicationDate":"2022-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78284778","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and Application of New Testing Slots in the Tracking Control System 跟踪控制系统中新型测试槽的设计与应用

Journal of Northeast Agricultural University Pub Date : 2012-04-01 DOI: 10.4028/www.scientific.net/AMR.507.112

Yan Yu, X. Liu, S. Shang

引用次数: 1