Patent ID: 7392238
Filing Date: 2008-06-24
Classification: G06F,Y10S

Abstract:
1. A method comprising: receiving a search term for a query; searching a network of concept terms for terms related to the search term, wherein each related term and the search term appear together in at least one sentence in a web page; reformulating the query using the search term and the related terms before performing a search for documents based on the search term; searching a local database for data terms that match the search term and the related terms, wherein the data terms are generated based on occurrence frequencies within a document residing on the web sites located on server connected to, wherein the occurrence frequencies include mutual information associated with a first term and a second term within a given web page using a predetermined algorithm, wherein the mutual information is determined based on one or more weight factors of the first and second terms, the one or more weight factors representing occurrence frequencies of the respective term, and wherein the mutual information (MI) of the first term x and the second term y is determined by MI(x, y)=f(x,y)/f(x)+f(y)−f(x, y), wherein f(x, y) corresponds to an occurrence frequency of both the first term and the second term, wherein f(x) corresponds to an occurrence frequency of the first term, and wherein f(y) corresponds to an occurrence frequency of the second term; and in response to matching data terms with the search terms and related terms corresponding to the data terms, retrieving the documents from the respective websites.