Brazil Data Commons: Unified Platform for Analyzing Public Data from Different Repositories

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Abstract
The fragmentation of public data in Brazil reflects broader sociotechnical challenges in digital governance, institutional coordination, and knowledge organization. Heterogeneous standards and limited interoperability restrict collective knowledge production, weaken evidence-based policymaking, and reinforce data asymmetries. We introduce Brazil Data Commons, a semantic infrastructure designed to integrate heterogeneous Brazilian public datasets within a shared knowledge framework. By adopting globally recognized ontologies and interoperable data standards, Brazil Data Commons contributes to the development of digital public infrastructure and connects Brazilian data to the broader Data Commons ecosystem. Beyond technical integration, the platform supports new forms of cross-domain analysis, public transparency, and data accessibility. Through intuitive interfaces and flexible access mechanisms, Brazil Data Commons lowers barriers to data use and strengthens the capacity of researchers, policymakers, and civic actors to generate data-driven insights. We hope our system may help researchers to correlate ‘offline’ social-economic indicators with online digital traces. This opens new avenues for digital demography, allowing researchers to integrate traditional data with social media and web activity to better understand Brazil’s complex population dynamics.

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