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Research Seminar: Discovering Social Conflicts based on Social Media Data

  • Date

    23 Mar 2023

  • Organiser

    Department of Land Surveying and Geo-Informatics (LSGI)

  • Time

    15:30 - 16:30

  • Venue

    Y306 Map  


Prof. Wei HUANG


Ms Anna Choi 3400 8158


Deadline for registration: 3:00pm, 22 Mar 2023


Social events such as massive protests are likely to turn into social conflicts by some triggers, leading to critical issues for urban governance and society stability. A quantitative understanding of their spatiotemporal patterns, including that how a protest is triggered, how a protest is propagating over time and over geography, what factors may influence the location of a protest occurring, etc., could help urban governors make better decisions for protecting citizens and make effective urban sustainable policies. Social media has been a popular venue for sharing such information before, during and after the social events. By analyzing not only the textual information but the tagged geoinformation involved in a massive social media dataset related to the events, one can investigate the key components of the events. Hence, this work focuses on applying a data-driven framework to a geo-tagged twitter dataset collected for the 2019-2020 Hong Kong protests as a case study. We explore the features of the data through the lens of a set of quantitative analyses such as sentiment analysis, time series analysis and spatial analysis, trying to capture the underlying spatiotemporal patterns of the protests and their violent conflicts.


Keynote Speaker

Prof. Wei HUANG


Tongji University

Prof. Wei Huang is a Professor at the College of Surveying and Geo-informatics, Tongji University, China, and an Adjunct Professor at Toronto Metropolitan University (formerly Ryerson University), Canada. Prior to Tongji, he was a Planner at the Ministry of Transportation Ontario, Canada. From 2016 to 2018, he was a Postdoctoral Research Fellow in the GIScience research group at Heidelberg University, Germany. He received his PhD degree in Civil Engineering (Geomatics Engineering) from Toronto Metropolitan University in 2016. His research interests include urban mobility, urban informatics and GIScience. He is the Chair of the ISPRS WGIV/6 - Human Behaviour and Sptial Interactions, and a Committee Member for the Chinese Society for Geodesy Photogrammetry and Cartography and the Low-Carbon Smart City Committee of Chinese Society of Technology Economics. He also serves as an Associate Editor for the ISPRS IJGI and an Editorial board Member for the Journal of Geodesy and Geoinformation Science.

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