Patent ID: 8276065
Filing Date: 2012-09-25
Classification: G06F,Y10S

Abstract:
1. A method for classifying electronically posted documents, the method comprising: receiving a first document and a second document; generating a first metadata summary for the first document and a second metadata summary for the second document, wherein the first metadata summary includes a first plurality of sub-trees and the second metadata summary includes a second plurality of sub-trees, wherein each of the sub-trees includes a plurality of nodes, wherein each of the sub-trees in the first and second pluralities of sub-trees comprises a structural format defined by a plurality of hierarchical structural constructs, and wherein subsets of the metadata summaries are grouped into a set of different summary groups based on a mime-type designation associated with each subset of the metadata summaries; comparing the first and second metadata summaries on a structural level by comparing the entire structural format defined by the plurality of hierarchical structural constructs of the sub-trees of the first metadata summary with the entire structural format defined by the plurality of hierarchical structural constructs of the sub-trees of the second metadata summary; identifying the first and second documents as distinct if the entire structural formats of the sub-trees of the first and second metadata summaries are not equivalent; if the entire structural formats of the sub-trees of the first and second metadata summaries are equivalent, performing a further comparison of the first and second metadata summaries, wherein the further comparison of the first and second metadata summaries includes the sub-steps of: