HKBU’s AI-enhanced technology adopted by LeaveHomeSafe

The artificial intelligence (AI)-enhanced technology developed by researchers from HKBU has been incorporated into the latest version of LeaveHomeSafe, a contact tracing mobile app launched by the Government.


The privacy-preserving technology was originally developed by Professor Xu Jianliang, Associate Head and Professor of the Department of Computer Science, and his team for BU-Trace, which is the city’s first and HKBU’s own COVID-19 alert system.


Powered by a novel AI algorithm, LeaveHomeSafe can now utilise the built-in accelerometer in mobile phones to automatically record the time when users get out of a taxi. The app does this by monitoring the motion patterns of users, and it doesn’t require them to tap on the screen.


The BU-Trace system was awarded The Best Paper Award by the International Workshop on Mobile Ubiquitous Systems and Technologies earlier this year, and it was recently shortlisted for the Technological or Digital Innovation of the Year in the Times Higher Education (THE) Awards Asia 2021.


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Photo source: Communication and Public Relations Office, HKBU

News source: Communication and Public Relations Office, HKBU