Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/162998
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dc.contributor.authorSun, Yidanen_US
dc.contributor.authorJiang, Guiyuanen_US
dc.contributor.authorLam, Siew-Keien_US
dc.contributor.authorHe, Peilanen_US
dc.contributor.authorNing, Fangxinen_US
dc.date.accessioned2022-11-15T02:03:46Z-
dc.date.available2022-11-15T02:03:46Z-
dc.date.issued2022-
dc.identifier.citationSun, Y., Jiang, G., Lam, S., He, P. & Ning, F. (2022). Multi-fold correlation attention network for predicting traffic speeds with heterogeneous frequency. Applied Soft Computing, 124, 108977-. https://dx.doi.org/10.1016/j.asoc.2022.108977en_US
dc.identifier.issn1568-4946en_US
dc.identifier.urihttps://hdl.handle.net/10356/162998-
dc.description.abstractShort-term traffic prediction (e.g., less than 15 min) is challenging due to severe fluctuations of traffic data caused by dynamic traffic conditions and uncertainties (e.g., in data acquisition, driver behaviors, etc.). Substantial efforts have been undertaken to incorporate spatiotemporal correlations for improving traffic prediction accuracy. In this paper, we demonstrate that closely located road segments exhibit diverse spatial correlations when characterized using different measurements, and considering these multi-fold correlations can improve prediction performance. We propose new measurements to model multiple spatial correlations among traffic data. We develop a Multi-fold Correlation Attention Network (MCAN) that achieves accurate prediction by capturing multi-fold spatial correlation and multi-fold temporal correlations, and incorporating traffic data of heterogeneous sampling frequencies. The effectiveness of MCAN has been extensively evaluated on two real-world datasets in terms of overall performance, ablation study, sensitivity analysis, and case study, by comparing with several state-of-the-art methods. The results show that MCAN outperforms the best baseline with a reduction in mean absolute error (MAE) by 13% on Singapore dataset and 11% on Beijing dataset.en_US
dc.description.sponsorshipNational Research Foundation (NRF)en_US
dc.language.isoenen_US
dc.relation.ispartofApplied Soft Computingen_US
dc.rights© 2022. Published by Elsevier B.V. All rights reserved.en_US
dc.subjectEngineering::Computer science and engineeringen_US
dc.titleMulti-fold correlation attention network for predicting traffic speeds with heterogeneous frequencyen_US
dc.typeJournal Articleen
dc.contributor.schoolSchool of Computer Science and Engineeringen_US
dc.identifier.doi10.1016/j.asoc.2022.108977-
dc.identifier.scopus2-s2.0-85130518373-
dc.identifier.volume124en_US
dc.identifier.spage108977en_US
dc.subject.keywordsMulti-Fold Spatial Correlationen_US
dc.subject.keywordsMulti-Fold Temporal Correlationen_US
dc.description.acknowledgementThis research project is supported in part by the National Research Foundation Singapore under its Campus for Research Excellence and Technological Enterprise (CREATE) programme with the Technical University of Munich at TUMCREATE.en_US
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item.grantfulltextnone-
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