Patent №
US 4,843,389
Granted
1989-06-27
Filed 1986
Owner
INTERNATIONAL BUSINESS MACHINES CORPORATION, ARMONK, NEW YORK 10504, A CORP. OF NEW YORK
Lab
AI components
1
nlp
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
06937799
A text compression method and apparatus are disclosed that enable overall compression ratios of more than six or eight to one for normal language text. Plural multiple-word dictionaries that are specialized for the particular field of use are employed together with a header transmission format that identifies which dictionaries are to be used. In addition, entries in these dictionaries are categorized by a weighted frequency of use ranking in which the product of the word length in characters and the frequency of occurrence of that word in the text is taken as the weighted figure of merit for ranking words to be placed in the individual dictionaries.
AI classification
Ownership
INTERNATIONAL BUSINESS MACHINES CORPORATION, ARMONK, NEW YORK 10504, A CORP. OF NEW YORK
assignment · 46540190
Assignors
LISLE, RONALD J., MOSS, EUAL A., RYDER, JOHN H.
On an employer assignment, the assignors are typically the inventors.