Title
MPA-RNN: A Novel Attention-Based Recurrent Neural Networks for Total Nitrogen Prediction
Abstract
Accurately predicting the short- and long-term variations of total nitrogen (TN) is vital for operating the wastewater treatment plants (WWTPs), considering the critical role TN plays in reflecting the eutrophication of wastewater. However, only a few relevant water quality parameters with limited samples can be obtained in WWTPs, which tremendously increases the difficulty in precisely predicting TN concentration. In this study, a multiphase attention-based recurrent neural network (MPA-RNN) is proposed. Benefited from its unique decomposition-summary attention structure, MPA-RNN first learns the temporal correlations and effectively excavates the useful information hidden in the historical data. Then, by designing a two-channel structure to transmit attention information, summary attention can integrate the decomposed information and learn the spatial relationships without information loss. Experimental results demonstrate that MPA-RNN achieves the best performance on both the SML2010 and practical TN datasets with the smallest root-mean-squared error, mean absolute error, and mean absolute percentage error when compared with the other state-of-the-art methods.
Year
DOI
Venue
2022
10.1109/TII.2022.3161990
IEEE Transactions on Industrial Informatics
Keywords
DocType
Volume
Attention-based recurrent neural network,attention mechanism,multivariate time series prediction,spatial-temporal relationship,total nitrogen (TN) prediction
Journal
18
Issue
ISSN
Citations 
10
1551-3203
0
PageRank 
References 
Authors
0.34
23
5
Name
Order
Citations
PageRank
Jingxuan Geng100.34
Chunhua Yang243571.63
Yonggang Li305.07
Lijuan Lan401.69
Qiwu Luo5149.06