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LingoTrip: Spatiotemporal context prompt driven large language model for individual trip prediction
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Byggvetenskap, Transportplanering.
Institute of Physics, Henan Academy of Sciences, Zhengzhou 450000, China.
Department of Data Science and Artificial Intelligence, Monash University, Melbourne, Victoria 3800, Australia.
KTH, Skolan för arkitektur och samhällsbyggnad (ABE), Byggvetenskap, Transportplanering.ORCID-id: 0000-0002-2141-0389
2025 (Engelska)Ingår i: Journal of Public Transportation, ISSN 1077-291X, Vol. 27, artikel-id 100117Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Large language models (LLMs) showed superior performance in many language-related tasks. It is promising to model the individual mobility prediction problem as a language model and use pretrained LLMs to predict the individual next trip information (e.g., time and location) for personalized travel recommendations. Theoretically, it is expected to overcome the common limitations of data-driven prediction models in zero/few shot learning, generalization, and interpretability. The paper proposes a LingoTrip model for predicting individual next trip location by designing the spatiotemporal context prompts for LLMs. The designed prompting strategies enable LLMs to capture implicit land use information (trip purposes), spatiotemporal mobility patterns (choice preferences), and geographical dependencies of the stations used (choice variability). The lingoTrip is validated using Hong Kong Mass Transit Railway trip data by comparing it with the state-of-the-art data-driven mobility prediction models under different training data sizes. Sensitivity analyses are performed for model hyperparameters and their tuning methods to adapt for other datasets. The results show that LingoTrip outperforms data-driven models in terms of prediction accuracy, transferability (between individuals), zero/few shot learning (limited training sample size) and interpretability of predictions. The LingoTrip model can facilitate the effective provision of personalized information for system crowding and disruption contexts (i.e., proactively providing information to targeted individuals).

Ort, förlag, år, upplaga, sidor
Elsevier BV , 2025. Vol. 27, artikel-id 100117
Nyckelord [en]
Individual Mobility, Large Language Models, Personalied Infromation, Public Transport, Spatiotemporal Context Prompt
Nationell ämneskategori
Transportteknik och logistik Annan data- och informationsvetenskap
Identifikatorer
URN: urn:nbn:se:kth:diva-359903DOI: 10.1016/j.jpubtr.2025.100117ISI: 001419730300001Scopus ID: 2-s2.0-85216559338OAI: oai:DiVA.org:kth-359903DiVA, id: diva2:1937213
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QC 20250303

Tillgänglig från: 2025-02-12 Skapad: 2025-02-12 Senast uppdaterad: 2025-03-03Bibliografiskt granskad

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Qin, ZhenlinMa, Zhenliang

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