A Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface
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 (89) to: access (101) an inverted index (103) 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 (105) a number of "N" IUs in the results that are assumed to be relevant by accessing a forward index (104); wherein the forward index (104) and inverted index (103) have pointers to locations in the IUs where terms of the query occur, and the forward index (104) retrieves a term frequency vector of the IU or a set of contexts of the IU.
Patent Number: US8620900B2
Application Number: US2009368282A
Inventor: Luk, Robert Wing Pong
Priority Date: 9 Feb 2009
Priority Number: US8620900B2
Application Date: 9 Feb 2009
Publication Date: 31 Dec 2013
IPC Current: G06F001730
US Class: 707715
Assignee Applicant: The Hong Kong Polytechnic University
Title: Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface
Usefulness: Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and an intelligent search interface
Summary: Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and intelligent search interface.
Novelty: Method for using dual indices to support query expansion, relevance/non-relevance models, blind/relevance feedback and intelligent search interface, involves accessing forward index for retrieving term frequency vector of document
生物醫學
醫療裝置
LUK Robert
美國
