1. A method for deriving a cluster of nodes in a graph that correspond to an identified community, the method comprising: generating a label for each node in a graph, wherein said label identifies a community in which a node participates; propagating each label locally within two or more segments of the graph based on a participation percentage of each node in at least one identified community within the graph; and deriving at least one cluster of nodes in the graph that corresponds to the at least one identified community based on said propagating; wherein at least one of the steps is carried out by a computer device.