Patent ID: 7275061
Filing Date: 2007-09-25
Classification: G06F,G06Q,Y10S

Abstract:
1. A method for topical indexing a document collection that is initially unconnected with a body of textual reference material, comprising: processing the body of textual reference material into a plurality of text portions, each text portion being associated with a single topic from a plurality of topics, processing said plurality of text portions to derive keywords for each topic, assigning a weight to each keyword in a text portion; associating a keyword with a corresponding text portion if the weight of said keyword in said corresponding text portion is equal to or greater than a weight of said keyword in the text portions other than the corresponding text portion, or is equal to or greater than a predetermined threshold value; forming first keyword-weight pairs of said associated keywords; applying the associated keywords to at least one document from said initially unconnected document collection and forming second keyword-weight pairs associated with said at least one document; forming a numeric score between the first and second keyword-weight pairs; and