WO2001090921A3 - System and method for automatically classifying text - Google Patents

System and method for automatically classifying text Download PDF

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Publication number
WO2001090921A3
WO2001090921A3 PCT/US2001/016872 US0116872W WO0190921A3 WO 2001090921 A3 WO2001090921 A3 WO 2001090921A3 US 0116872 W US0116872 W US 0116872W WO 0190921 A3 WO0190921 A3 WO 0190921A3
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WO
WIPO (PCT)
Prior art keywords
category
document
feature
weight
automatically classifying
Prior art date
Application number
PCT/US2001/016872
Other languages
French (fr)
Other versions
WO2001090921A2 (en
Inventor
Igor Ukrainczyk
Max Copperman
Scott B Huffman
Original Assignee
Kanisa Inc
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.)
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Publication date
Application filed by Kanisa Inc filed Critical Kanisa Inc
Priority to AU2001264928A priority Critical patent/AU2001264928A1/en
Publication of WO2001090921A2 publication Critical patent/WO2001090921A2/en
Publication of WO2001090921A3 publication Critical patent/WO2001090921A3/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
    • G06F16/35—Clustering; Classification
    • G06F16/353—Clustering; Classification into predefined classes
    • 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
    • G06F16/31—Indexing; Data structures therefor; Storage structures
    • G06F16/313—Selection or weighting of terms for indexing
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/10—Text processing
    • G06F40/103—Formatting, i.e. changing of presentation of documents
    • G06F40/117—Tagging; Marking up; Designating a block; Setting of attributes
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F40/00—Handling natural language data
    • G06F40/20—Natural language analysis

Abstract

A method is provided for automatically classifying text into categories. In operation, a plurality of tokens or features are manually or automatically associated with each category. A weight is then coupled to each feature, wherein the weight indicates a degree of association between the feature and the category. Next, a document is parsed into a plurality of unique tokens with associated counts, wherein the counts are indicative of the number of times the feature appears in the document. A category score representative of a sum of products of each feature count in the document times the corresponding feature weight in the category for each document is then computed. Next, the category scores are sorted by perspective, and a document is classified into a particular category, provided the category score exceeds a predetermined threshold.
PCT/US2001/016872 2000-05-25 2001-05-25 System and method for automatically classifying text WO2001090921A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2001264928A AU2001264928A1 (en) 2000-05-25 2001-05-25 System and method for automatically classifying text

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US20697500P 2000-05-25 2000-05-25
US60/206,975 2000-05-25

Publications (2)

Publication Number Publication Date
WO2001090921A2 WO2001090921A2 (en) 2001-11-29
WO2001090921A3 true WO2001090921A3 (en) 2003-12-24

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PCT/US2001/016872 WO2001090921A2 (en) 2000-05-25 2001-05-25 System and method for automatically classifying text

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US (2) US7028250B2 (en)
AU (1) AU2001264928A1 (en)
WO (1) WO2001090921A2 (en)

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