25. The method of claim 19 wherein the parsing step produces a transitive closure of said plurality of elements.
19. A method of analyzing information regarding a plurality of documents, each having a unique document index, the method comprising the steps of: parsing each document into a plurality of elements; generating a first representation of each of said elements; and for selected pairs of documents, comprised of a first document and a second document, determining a first utility measure based on the respective first representation of the plurality of elements for the documents in that pair.