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Asian cities harness big data and AI for contact tracing

Tracking infectious diseases becomes centerpiece of smart city projects

Asian cities have turned to big data and AI to trace people with the risk of having been exposed to the coronavirus.   © Reuters

TOKYO -- China's Alibaba Group Holding offers an app that restricts individuals at a high risk of having been exposed to the coronavirus from entering certain buildings. 

The tech giant has also rolled out a system in several Chinese cities that identifies those not wearing a mask using AI.

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