A Ghost Ontology is a steganographic technique consisting of the application of a privately-shared thesaurus of symbol replacements to an (inconspicuous) document, revealing its "true" intended meaning. The quality of a Ghost Ontology is determined by: *the inconspicuousness of the matched (input) symbols *the lack of "false-positive" collisions with ordinarily-intended symbols Application Ghost Ontologies may be distributed according to a private-key cryptosystem. A web browser plugin, upon detecting an applicable Ghost Ontology, replaces certain text according to the ontology's pattern matchings.
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