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Predicting Vehicle Behavior Using Multi-task Ensemble Learning
Malmö University, Faculty of Technology and Society (TS), Department of Computer Science and Media Technology (DVMT). Malmö University, Internet of Things and People (IOTAP).ORCID iD: 0000-0002-3797-4605
Center for Applied Intelligent Systems Research (CAISR), Halmstad University, Sweden.ORCID iD: 0000-0002-0051-0954
Volvo Group Connected Solutions, Gothenburg, Sweden.ORCID iD: 0000-0003-0325-5722
Center for Applied Intelligent Systems Research (CAISR), Halmstad University, Sweden.ORCID iD: 0000-0001-8804-5884
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2023 (English)In: Expert systems with applications, ISSN 0957-4174, E-ISSN 1873-6793, Vol. 212, p. 118716-118716, article id 118716Article in journal (Refereed) Published
Abstract [en]

Vehicle utilization analysis is an essential tool for manufacturers to understand customer needs, improve equipment uptime, and to collect information for future vehicle and service development. Typically today, this behavioral modeling is done on high-resolution time-resolved data with features such as GPS position and fuel consumption. However, high-resolution data is costly to transfer and sensitive from a privacy perspective. Therefore, such data is typically only collected when the customer pays for extra services relying on that data. This motivated us to develop a multi-task ensemble approach to transfer knowledge from the high-resolution data and enable vehicle behavior prediction from low-resolution but high dimensional data that is aggregated over time in the vehicles. This study proposes a multi-task snapshot-stacked ensemble (MTSSE) deep neural network for vehicle behavior prediction by considering vehicles’ low-resolution operational life records. The multi-task ensemble approach utilizes the measurements to map the low-frequency vehicle usage to the vehicle behaviors defined from the high-resolution time-resolved data. Two data sources are integrated and used: high-resolution data called Dynafleet, and low-resolution so-called Logged Vehicle Data (LVD). The experimental results demonstrate the proposed approach’s effectiveness in predicting the vehicle behavior from low frequency data. With the suggested multi-task snapshot-stacked ensemble deep network, it is shown how low-resolution sensor data can highly contribute to predicting multiple vehicle behaviors simultaneously while using only one single training process.

Place, publisher, year, edition, pages
Elsevier, 2023. Vol. 212, p. 118716-118716, article id 118716
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Information Systems
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URN: urn:nbn:se:mau:diva-55080DOI: 10.1016/j.eswa.2022.118716ISI: 000870841300003Scopus ID: 2-s2.0-85138456634OAI: oai:DiVA.org:mau-55080DiVA, id: diva2:1697970
Available from: 2022-09-22 Created: 2022-09-22 Last updated: 2023-07-05Bibliographically approved

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Khoshkangini, Reza

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Khoshkangini, RezaMashhadi, PeymanTegnered, DanielLundström, JensRögnvaldsson, Thorsteinn
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