Table 1.

List of notations used

Symbol	Definition	Symbol	Definition
G	Undirected, weighted graph	α	Random walk restart probability
V	Vertices in graph	λ	Early cutoff value
E	Edges in graph	k	Number of iteractions (maximum cluster size)
P	Transition matrix for graph	si	Restart vector for a node (or set of nodes) i
C	Vector consisting of a cluster of nodes	xi	Random Walk stationary vector from a node (or set of nodes) i