Data for: Opinion-Based Optimal Group Formation

This XML file collects the opinion of 33 decision makers on their political preferences, considering seven Italian leaders who run for the Italian national political elections on March 4th, 2018.
The decision makers were presented with a pictorial representation of the seven leaders and were asked to draw an arrow from leader A to leader B in order to specify that they prefer A over B; moreover, they provided an integer number between 1 and 10 to specify how many times A was preferred with respect to B.

The ... XML field reports basic date for each leader, in the form

Id of the leader
Name of the leader

For each decision maker we report a .. XML field, which contains an ID in the form ID of decision maker and a field ..., which contains the list of the edges associated to that decision maker.
Such edges are in the form

ID of Leader
ID of Leader
Weight

and model the fact that the leader in the .. field is preferred to the leader in the .. field.
The amount of the preference is reported in the ... field.