14. The method of claim 13 , wherein a commonality between the instances i and j is computed by expanding respective descriptions to include one or more other statements that can be inferred based on the object-sets for the at least one given ontology property and the taxonomy defined based on the range of the at least one given ontology property, and obtaining common pairs of statements that occur in both of the respective descriptions.
15. The method of claim 14 , wherein information content in the commonality is a probability that a pair of random instances satisfies a pair of statements in the commonality.