WO2002082224A3 - System, method, and software for identifying historically related legal opinions - Google Patents

System, method, and software for identifying historically related legal opinions Download PDF

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Publication number
WO2002082224A3
WO2002082224A3 PCT/US2002/010943 US0210943W WO02082224A3 WO 2002082224 A3 WO2002082224 A3 WO 2002082224A3 US 0210943 W US0210943 W US 0210943W WO 02082224 A3 WO02082224 A3 WO 02082224A3
Authority
WO
WIPO (PCT)
Prior art keywords
case
prior
cases
software
courts
Prior art date
Application number
PCT/US2002/010943
Other languages
French (fr)
Other versions
WO2002082224A2 (en
Inventor
Peter Jackson
Khalid Al-Kofahi
Original Assignee
West Publishing Co
Peter Jackson
Khalid Al-Kofahi
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 West Publishing Co, Peter Jackson, Khalid Al-Kofahi filed Critical West Publishing Co
Priority to AU2002303270A priority Critical patent/AU2002303270A1/en
Publication of WO2002082224A2 publication Critical patent/WO2002082224A2/en
Publication of WO2002082224A3 publication Critical patent/WO2002082224A3/en

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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
    • 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
    • G06F16/3332—Query translation
    • G06F16/3334—Selection or weighting of terms from queries, including natural language queries
    • 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
    • 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
    • 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

Abstract

The American legal system, judges and lawyers are continually researching an ever-expanding body of past judicial opinions, or case law, for the ones most relevant to resolution of new disputes. To facilitate these searches, some companies collect and publish the judicial opinions of courts across the United States in both paper and electronic forms, with some of the cases containing references to prior cases from other courts that have previously ruled on all or part of the same dispute. Accordingly, the present inventors devised systems, methods, and software that generally facilitate identification of one or more documents that are related to a given document, and particularly facilitate identification of prior cases for a given case (130). One specific embodiment retrieves prior-case candidates (120) based on information extracted (131) from an input case (112), and then uses a support vector machine (134) to determine (135) which of the prior-case candidates are most probably prior cases for the input case.
PCT/US2002/010943 2001-04-04 2002-04-04 System, method, and software for identifying historically related legal opinions WO2002082224A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2002303270A AU2002303270A1 (en) 2001-04-04 2002-04-04 System, method, and software for identifying historically related legal opinions

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US28134001P 2001-04-04 2001-04-04
US60/281,340 2001-04-04

Publications (2)

Publication Number Publication Date
WO2002082224A2 WO2002082224A2 (en) 2002-10-17
WO2002082224A3 true WO2002082224A3 (en) 2003-05-22

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2002/010943 WO2002082224A2 (en) 2001-04-04 2002-04-04 System, method, and software for identifying historically related legal opinions

Country Status (3)

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US (3) US7593920B2 (en)
AU (1) AU2002303270A1 (en)
WO (1) WO2002082224A2 (en)

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Also Published As

Publication number Publication date
US20100125601A1 (en) 2010-05-20
AU2002303270A1 (en) 2002-10-21
US7620626B2 (en) 2009-11-17
US20030046277A1 (en) 2003-03-06
US20060206467A1 (en) 2006-09-14
US7593920B2 (en) 2009-09-22
US7984053B2 (en) 2011-07-19
WO2002082224A2 (en) 2002-10-17

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