Patent ID: 6751614
Filing Date: 2004-06-15
Classification: G06F,Y10S

Abstract:
A Topic Analysis System for analyzing documents to assess the relevance of documents with respect to a topic of interest to a user, said system comprising:(a) a document evaluation subsystem for evaluating a document, said document evaluation subsystem comprises means for computing inter-relation among a plurality of key-phrases within the document, wherein the computation comprises the steps of: computing the probability of occurrence of a key-phrase in the document depending on the occurrence of said plurality of key-phrases in the document, and computing the probability of non-occurrence of a key-phrase in the document depending on the occurrence of said plurality of key-phrases in the document; and (b) a clustering subsystem for representing a plurality of documents with respect to the topic associated with the user, said clustering subsystem comprising means for clustering the plurality of documents, wherein the plurality of documents includes a plurality of documents analyzed by said system and a plurality of documents analyzed by the user, and the representing comprises the steps of: assigning a document of the plurality of documents to a hierarchically related plurality of positive clusters and plurality of negative clusters.