Traffic Event Detection as a Slot Filling Problem

Xiangyu Yang, Ioannis Bekoulis, Nikos Deligiannis

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)


Social media platforms, such as Twitter, can be used to extract information
related to traffic events. Previous works focused mainly on classifying tweets
into predefined categories (i.e., traffic or non-traffic) without many details of
traffic events. However, extracting traffic-related fine-grained information from
tweets is essential to build an intelligent transportation system. In this work,
we address for the first time the problem of detecting traffic events using Twitter as two subtasks: (i) identifying whether a tweet is traffic-related or not as
a text classification subtask, and (ii) extracting more fine-grained information
(i.e., “what”, “when”, “where”, and the “consequence” of the traffic event) as
a slot filling subtask. We also publish two Dutch Traffic Twitter datasets from
Belgium and the Brussels capital region. We propose using deep learning based
methods that process the two subtasks separately or jointly. Experimental results indicate that the proposed architectures achieve high performance scores
(i.e., more than 95% F1 score) on the constructed datasets for both subtasks,
even in a transfer learning scenario. In addition, incorporating tweet-level information in each of the tokens comprising the tweet (for the BERT-based model) can lead to a performance improvement for the joint setting. Our datasets and code are available on GitHub.
Original languageEnglish
Article number106202
Pages (from-to)1-13
Number of pages13
JournalEngineering Applications of Artificial Intelligence
Issue numberPA
Publication statusPublished - Aug 2023

Bibliographical note

Funding Information:
This work has been supported in part by the Innoviris Project MobiPulse (2018-EXPLORE-22a) and in part by the Flemish Government, under the “Onderzoeksprogramma Artificiële Intelligentie (AI) Vlaanderen” programme.

Publisher Copyright:
© 2023 Elsevier Ltd

Copyright 2023 Elsevier B.V., All rights reserved.


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