Data processing: database and file management or data structures – Database and file access
Reexamination Certificate
2004-09-27
2010-06-29
Ali, Mohammad (Department: 2158)
Data processing: database and file management or data structures
Database and file access
C707S736000, C707S737000, C707S748000, C707S999005, C704S231000, C704S240000, C704S245000
Reexamination Certificate
active
07747593
ABSTRACT:
A method of determining cluster attractors for a plurality of documents comprising at least one term. The method comprises calculating, in respect of each term, a probability distribution indicative of the frequency of occurrence of the, or each, other term that co-occurs with said term in at least one of said documents. Then, the entropy of the respective probability distribution is calculated. Finally, at least one of said probability distributions is selected as a cluster attractor depending on the respective entropy value. The method facilitates very small clusters to be formed enabling more focused retrieval during a document search.
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Dobrynin Vladimir
Patterson David
Ali Mohammad
Meyer Jerald L.
Ruiz Angelica
St. Petersburg State University
The Nath Law Group
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