Data security system and method with adaptive filter
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United States of America Patent
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Jun 9, 2009
Grant Date -
Jun 23, 2005
app pub date -
Nov 26, 2004
filing date -
Nov 13, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A method, program and information processing system filters and secures data (security sensitive words-characters-data objects) in a source document. The adaptive filter uses a compilation of additional data (typically networked) and identifies the sensitive words/objects in the compilation of additional data, and retrieves contextual, semiotic and taxonomic words/objects from the compilation related to the sensitive words/objects. The resulting compiled filter is used to extract sensitive words/objects and retrieved data (words/objects) from the source document to obtain extracted data and remainder data therefrom. Contextual words, related to the security sensitive words/objects, are based upon statistical analysis of the additional data compilation. Semiotic words related words are synonyms, antonyms, and pseudonyms, syntactics relative to the target words and retrieved words, and pragmatics relative to the sensitive words and retrieved words.
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