DOCUMENT CATEGORIZATION BY WORD LENGTH DISTRIBUTION ANALYSIS

Patent №

US 5,909,680

Granted

1999-06-01

Filed 1996

Owner

RICOH COMPANY LIMITED

Lab

AI components

4

ml · nlp · vision · kr

Assignment

Recorded

Dataset

AIPD

2023_r1 edition

Application

08709707

A system and method for efficient document categorization are disclosed. In one embodiment, word length distribution information is used as a basis for categorization. Greater than 90% accuracy in classification may be achieved in, e.g., distinguishing newspaper articles from scientific journal articles. Word length distribution information may be developed without optical character recognition (OCR), permitting use of degraded document images.

AI classification

Natural language1.00
Vision1.00
Machine learning0.94
Knowledge representation0.93
AI hardware0.28
Planning0.20
Speech0.00
Evolutionary computation0.00

Ownership

RICOH COMPANY LIMITED

assignment · 81990910

Assignors

HULL, JONATHAN J.

On an employer assignment, the assignors are typically the inventors.

From the same owner

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