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Data processing: database and file management or data structures – Database design – Data structure types

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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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Radecki, T., "On a probabilistic approach to determining the similarity between Boolean search request formulations", Journal of Documentation, vol. 38, No. 1, p. 14-28, Mar. 1982.

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