We discuss the common hypothesis that, in collaborative projects, all partners interact with each other in homogeneous ways. More precisely, this research aims to determine the existence and frequency of Partner interactions in a collaborative project. From a survey of participants involved in...

__Abstract__ A median (antimedian) of a profile of vertices on a graph $G$ is a vertex that minimizes (maximizes) the remoteness value, that is, the sum of the distances to the elements in the profile. The median (or antimedian) function has as output the set of medians (antimedians) of a...