Here I talked about how the Comptroller General of Brazil (where I work) uses machine learning to identify corrupt government employees and other problems.
Here I talked about data mining in the Brazilian government, with a focus on Neo4j. Slides.
A four-talk panel that I moderated. It was about risk and fraud detection in the Brazilian government. Q&A session starts at 1h25m. 2016-08-25, Brasília, Brazil, in Portuguese.
Here I talked about how the Brazilian government uses Neo4j, Python, R, and other tools to detect corruption and other crimes.
Here I talked about using NLP to classify the goods the Brazilian government buys. Slides.
This is just the Q&A session that followed the panel where I gave the talk above.