CA2320386A1 - Similar document retrieval method using plural similarity calculation methods and recommended article notification service system using similar document retrieval method - Google Patents

Similar document retrieval method using plural similarity calculation methods and recommended article notification service system using similar document retrieval method Download PDF

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Publication number
CA2320386A1
CA2320386A1 CA002320386A CA2320386A CA2320386A1 CA 2320386 A1 CA2320386 A1 CA 2320386A1 CA 002320386 A CA002320386 A CA 002320386A CA 2320386 A CA2320386 A CA 2320386A CA 2320386 A1 CA2320386 A1 CA 2320386A1
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CA
Canada
Prior art keywords
retrieval method
document retrieval
similar document
similarity calculation
calculation methods
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CA002320386A
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French (fr)
Other versions
CA2320386C (en
Inventor
Kazunori Matsumoto
Shigeki Muramatsu
Kazuo Hashimoto
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KDDI Corp
Original Assignee
KDD Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by KDD Corp filed Critical KDD Corp
Publication of CA2320386A1 publication Critical patent/CA2320386A1/en
Application granted granted Critical
Publication of CA2320386C publication Critical patent/CA2320386C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
    • G06F16/30—Information retrieval; Database structures therefor; File system structures therefor of unstructured textual data
    • G06F16/33—Querying
    • G06F16/3331—Query processing
    • G06F16/334—Query execution
    • G06F16/3346—Query execution using probabilistic model
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing
    • Y10S707/99933—Query processing, i.e. searching
    • Y10S707/99935—Query augmenting and refining, e.g. inexact access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99931—Database or file accessing
    • Y10S707/99933—Query processing, i.e. searching
    • Y10S707/99936—Pattern matching access
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S707/00—Data processing: database and file management or data structures
    • Y10S707/99941—Database schema or data structure
    • Y10S707/99944—Object-oriented database structure
    • Y10S707/99945—Object-oriented database structure processing

Abstract

A similar document retrieval method capable of realizing an improved retrieval performance is disclosed.
In this similar document retrieval method for retrieving similar documents of a reference document from a plurality of retrieval target documents, similarities of each one of the plurality of retrieval target documents with respect to the reference document are calculated by using each one of two or more similarity calculation methods separately, and the similar documents of the reference document are retrieved by carrying out a discrimination analysis with respect to each one of a plurality of similarities calculated by using each one of the two or more similarity calculation methods separately.
CA002320386A 1999-09-22 2000-09-21 Similar document retrieval method using plural similarity calculation methods and recommended article notification service system using similar document retrieval method Expired - Fee Related CA2320386C (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP26952899 1999-09-22
JPP11-269528 1999-09-22
JPP2000-69478 2000-03-13
JP2000069478A JP2001160067A (en) 1999-09-22 2000-03-13 Method for retrieving similar document and recommended article communication service system using the method

Publications (2)

Publication Number Publication Date
CA2320386A1 true CA2320386A1 (en) 2001-03-22
CA2320386C CA2320386C (en) 2005-02-22

Family

ID=26548809

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002320386A Expired - Fee Related CA2320386C (en) 1999-09-22 2000-09-21 Similar document retrieval method using plural similarity calculation methods and recommended article notification service system using similar document retrieval method

Country Status (4)

Country Link
US (1) US6301577B1 (en)
EP (1) EP1087302A3 (en)
JP (1) JP2001160067A (en)
CA (1) CA2320386C (en)

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US7376643B2 (en) * 2004-05-14 2008-05-20 Microsoft Corporation Method and system for determining similarity of objects based on heterogeneous relationships
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US20060142993A1 (en) * 2004-12-28 2006-06-29 Sony Corporation System and method for utilizing distance measures to perform text classification
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US8676802B2 (en) 2006-11-30 2014-03-18 Oracle Otc Subsidiary Llc Method and system for information retrieval with clustering
US8027977B2 (en) * 2007-06-20 2011-09-27 Microsoft Corporation Recommending content using discriminatively trained document similarity
US7856434B2 (en) 2007-11-12 2010-12-21 Endeca Technologies, Inc. System and method for filtering rules for manipulating search results in a hierarchical search and navigation system
US8325362B2 (en) * 2008-12-23 2012-12-04 Microsoft Corporation Choosing the next document
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WO2014167880A1 (en) * 2013-04-09 2014-10-16 株式会社日立国際電気 Image retrieval device, image retrieval method, and recording medium
US20170169032A1 (en) * 2015-12-12 2017-06-15 Hewlett-Packard Development Company, L.P. Method and system of selecting and orderingcontent based on distance scores
WO2020022536A1 (en) * 2018-07-27 2020-01-30 (주)브레인콜라 Book recommendation method utilizing similarity between books
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Also Published As

Publication number Publication date
EP1087302A3 (en) 2005-08-24
JP2001160067A (en) 2001-06-12
US6301577B1 (en) 2001-10-09
EP1087302A2 (en) 2001-03-28
CA2320386C (en) 2005-02-22

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