1. Giraph,
https://github.com/apache/giraph
.
2. Konect: the Koblenz network collection.
http://konect.uni-koblenz.de/
. Accessed: 2019-11-22.
3. Law: Laboratory for web algorithmics.
http://law.di.unimi.it/
. Accessed: 2019-11-22.
4. Snap: Stanford network analysis platform.
http://snap.stanford.edu/snap/index.html
. Accessed: 2019-11-22.
5. What is twitter, a social network or a news media?
https://an.kaist.ac.kr/traces/WWW2010.html
. Accessed: 2019-11-22.