Writing
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Sep 2023
10 min
Public data has become a critical production factor in China's digital economy, and cities across the country are now pilot-testing ways to open it up responsibly. This piece examines the authorization and operation models that Zhejiang, Qingdao, Beijing, and Changsha have adopted, each with distinct approaches: from tightly scoped, single-use permits to broader platform-based schemes where operators can build and sell data products. It unpacks the key steps in the process (who authorizes what, how operators get selected, what safeguards exist) and maps out the core players: government agencies, licensed operators, data source departments, and downstream users. The goal is to present a practical overview of where public data authorization stands today and what the main design tradeoffs look like across these models.
May 2023
10 min
This study applies Network Analysis to track the relationship between community mobility and crime rates using Big Data from New York TLC Trip Record. Both Linear Regression and Exponential Random Graph Model (ERGM) are used to study interrelations between community mobility and crime rates, revealing crime patterns that diffuse beyond adjacent neighborhoods.
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