12. The process as recited in claim 10 , wherein said comparing comprises selecting a mode group, transforming the knowledge signatures into reduced-dimensional representations, and performing a similarity measure between the transformed knowledge signatures.
12. The process as recited in claim 10 , wherein said comparing comprises selecting a mode group, transforming the knowledge signatures into reduced-dimensional representations, and performing a similarity measure between the transformed knowledge signatures. 14. The process as recited in claim 12 , further comprising indexing the reduced-dimensional representation in existing data structures.