June 2nd question: Communities
Which of the following statements about communities is generally true? Communities are densely interconnected groups of nodes within a network that tend to have more connections within the group than with nodes outside the group. Communities are only applicable to social networks and do not occur in other types of networks. Communities do not overlap with each other in a network and are always disjoint. Communities' structures are rigid and do not evolve or change over time. None of the above.