Patent ID: 7197451
Filing Date: 2007-03-27
Classification: G06F

Abstract:
1. A method for determining dominant phrase vectors in a topological vector space for a semantic content of a document on a computer system, the method comprising: identifying a directed set of concepts as a dictionary, the directed set including a maximal element and at least one concept, and at least one chain from the maximal element to every concept; selecting a subset of the chains to form a basis for the dictionary; accessing dominant phrases for the document, the dominant phrases representing a condensed content for the document; measuring how concretely each dominant phrase is represented in each chain in the basis and the dictionary; constructing at least one state vector in the topological vector space for each dominant phrase using the measures of how concretely each dominant phrase is represented in each chain in the dictionary and the basis; and collecting the state vectors into the dominant phrase vectors for the document.