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The relation of a particular text to a particular subject group can be determined on the basis of lexical analysis and subsequent comparison of their frequency characteristics (say, the number of times a particular lexical unit appears in a text). IMSafer uses lexical analysis, based on a growing set of rules, which have been shown by law enforcement to indicate inappropriate online relationships with children. Adaptive lexical analysis - Adaptively learns the type of content that is considered confidential by training with public and private documents to identify key phrases, accounting for misspellings, intentionally obfuscated text, and similar patterns close to matching confidential text. |
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