Welcome to the PEARL Program   欢迎加入珍珠计划

       PEARL (Probing Entity Aggregation in Real Life) program aims to probe the interaction among people with helps of mobile phones and BlueTooth technique. With thousands of volunteers joining in the program, we can simulate the real social contact network very well, so as to give exact prediction on TB transmission, and so on.

Where are volunteers?

The following map shows the quantity of volunteers in certain dates. Note that there are many overlapping counts due to volunteers' movement.

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Growth of volunteers

Thanks volunteers!


Interaction network

How the volunteers interact? Click here!


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