Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/76886
Title: Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface
Authors: Luk, RWP 
Issue Date:  31
Source: US Patent 8,620,900 B2. Washington, DC: US Patent and Trademark Office, 2013. How to cite?
Abstract: A method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface, comprising using a computing device to: access an inverted index to obtain an initial retrieval of results in response to a query, and to generate a rank list of the results, the results referring to information units (IUs) where the query occurs; and determine a number of "N" IUs in the results that are regarded by the computing device to be relevant by accessing a forward index; and use the forward index to perform any one from the group consisting of: computing query expansion weights for top "N" retrieved IUs, building the relevance models by the contexts of query terms in the top "N" retrieved IUs, and finding the longest contiguous sequences of query terms in a query found in an IU; wherein the forward index and inverted index have pointers to locations in the IUs where terms of the query occur, and the forward index retrieves a term frequency vector of the IU or a set of contexts of the IU.
URI: http://hdl.handle.net/10397/76886
Rights: Assignee: The Hong Kong Polytechnic University
Appears in Collections:Patent

Show full item record

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.