Data processing: database and file management or data structures – Database design – Data structure types
Patent
1997-02-20
1998-09-15
Black, Thomas G.
Data processing: database and file management or data structures
Database design
Data structure types
707 3, 707531, G06F 1730
Patent
active
058094962
ABSTRACT:
A method is described for a computerized search for words in an electronic database with a large number of documents stored in memory. With this method, a Boolean retrieval method is used to determine in which of a large number of documents an initial word meets a Boolean condition. A probabilistic retrieval method is then used to determine in which of the documents fulfilling the Boolean condition, the relevance of appearance of a second word exceeds a specified value. The two retrieval methods use different indexes for this. The disadvantages normally found with this are avoided by the two different indexes having a common element that can be processed by both retrieval methods.
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Byrd, Jr. Roy Jefferson
Goeser Sebastian
Black Thomas G.
Homere Jean R.
International Business Machines - Corporation
Kappos David J.
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