Which data analytics initiative was pioneered by the U.S. federal government to improve transparency and citizen engagement through open data?

In the evolving landscape of politics and government, data analytics has transformed how policy decisions are made and public services are delivered. Government agencies are increasingly adopting sophisticated analytics tools similar to retail analytics systems to better understand citizen needs, optimize resource allocation, and improve public engagement. Test your knowledge about this growing intersection of government operations and data science!

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Data.gov (launched in 2009 as part of the Open Government Initiative)
GovTrack (a privately operated website that aggregates congressional data)
USASpending.gov (launched in 2017 under the DATA Act)
Census Explorer (launched in 2014 to visualize demographic data)