17. The method of claim 15 , wherein the partitions are scored based on semantic importance of the partitions, said semantic importance is a predefined function wherein at least one of variables of said function is from a combined set of said similarity coefficients and said centrality values of the partitions.
18. The method of claim 17 , wherein the semantic importance scores of a first set of partitions are used to score the semantic importance of a second set of partitions.