Fig 1.
Methodology diagram.
Fig 2.
Example voting network.
Fig 3.
Example voting network after keeping only positive weights.
Fig 4.
Modularity x Density of the networks for randomly removed edges.
Fig 5.
Number of yearly propositions for the Senate and the Chamber of Deputies.
Fig 6.
Brazilian Deputies Chamber cumulative members distribution.
Fig 7.
Senate cumulative members distribution.
Fig 8.
Number of parties over time for both houses.
Table 1.
Network statistics for Brazilian Deputies Chamber before backbone extraction application.
Table 2.
Network statistics for the Senate before backbone extraction application.
Table 3.
Resulting backbone extraction methods and fractions for the Chamber of Deputies.
Table 4.
Resulting backbone extraction methods and fractions for the Senate.
Table 5.
Network statistics for Brazilian Deputies Chamber after the backbone extraction application.
Table 6.
Network statistics for the Senate after the backbone extraction application.
Fig 9.
The resulting networks with colors representing political parties.
a) The raw Brazilian Deputies Chamber network for 2013. b) Brazilian Deputies Chamber network after the backbone extraction. c) The raw Senate network for 2013. d) The Senate network after the backbone extraction. Visualizations created with Gephi.
Fig 10.
A comparison of the number of found communities for the Senate and the Chamber of Deputies.
Fig 11.
Comparison of the modularity for parties and communities for the Senate and the Chamber of Deputies.
Fig 12.
Comparison of the Surprise for parties and communities for the Chamber of Deputies.
Fig 13.
Comparison of the Surprise for parties and communities for the Senate.
Fig 14.
Comparison between the number of communities and the true diversity of communities for the Senate and the Chamber of Deputies.
Fig 15.
The party distribution over communities for 2013.
Colors represent the political spectrum of parties with red being more to the left and blue more to the right.
Fig 16.
The party distribution over communities for 2016 and 2017.
Colors represent the political spectrum of parties with red being more to the left and blue more to the right.
Fig 17.
The government x opposition distribution inside communities for 2013.
Fig 18.
The government x opposition distribution inside communities for 2016.
Fig 19.
Chamber of Deputies fragmentation rank by year.
Fig 20.
Senate fragmentation rank by year.
Fig 21.
Chamber of Deputies isolation rank by year.
Fig 22.
Senate isolation rank by year.