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Abstract

A method for preventing information inferencing from documents comprises creating a document collection view from the documents, obtaining rules based on information to be hidden, establishing a plurality of levels of the rules, said levels ranging from a shallow level to a deepest level, for each level of the rules, from the shallow level to the deepest level, examining the document collection view in accordance with the level of the rules, when said examining detects inferencing, performing trace and repair on the document collection view, and outputting the document collection view. Examining can be performed using a search engine, a natural language processing engine, and a conceptual inferencability engine. The shallow level can correspond to a search engine, a deep level can correspond to a natural language processing engine, and a deepest level can correspond to a conceptual inferencability engine. The documents can be data in digital form.

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First Claim