input format is a hadoop or spark distributed file with following format:
1 3 4 5 => this means user 1 follows user 3, 4, and 5.
2 1 3 5
3 1 2 4 5
4 1 2 3 5
5 3
Implemented algorithms show how we can recommend other user that might be intersting to follow for each user.
for this input example we have to have a recommendation like following fromat:
1 2(2)
2 4(3)
3
4
5 1(1) 2(1) 4(1)