Google COVID-19 Vaccination Search Insights: Anonymization Process Description

07/02/2021

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by   Shailesh Bavadekar, et al.

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This report describes the aggregation and anonymization process applied to the COVID-19 Vaccination Search Insights (published at http://goo.gle/covid19vaccinationinsights), a publicly available dataset showing aggregated and anonymized trends in Google searches related to COVID-19 vaccination. The applied anonymization techniques protect every user's daily search activity related to COVID-19 vaccinations with (ε, δ)-differential privacy for ε = 2.19 and δ = 10^-5.