05375235 is referenced by 112 patents and cites 9 patents.

A method of storing and searching data on a mass storage medium is provided. A dictionary of keywords in a data file is compiled and a unique ID number is assigned to each keyword. A plurality of the most frequently occurring keywords are assigned ID numbers opposite in sense to the frequency of occurrence of the keyword. The dictionary of keywords is classified into a plurality of classes, the class of keywords least frequently occurring within the database having the fewest levels of indexing and the most amount of information regarding the exact location of a keyword within the data file.

Title
Method of indexing keywords for searching in a database recorded on an information recording medium
Application Number
7/788081
Publication Number
5375235
Application Date
November 5, 1991
Publication Date
December 20, 1994
Inventor
Aaron G Daisley Harrison
Framingham
MA, US
Evan B Ross
Waltham
MA, US
Arsene Hanssens
Milford
MA, US
Victor A Berry
Milford
MA, US
Agent
Foley & Lardner
Assignee
Northern Telecom
CA
IPC
G06F 15/40
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