Character string processing method and apparatus

A technology of character strings and character string lengths, which is applied in the fields of electrical digital data processing, special data processing applications, natural language data processing, etc., and can solve the problem that character strings cannot appear as mask candidate characters
CN1987848AInactive Publication Date: 2007-06-27IBM CORP
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
IBM CORP
Publication Date
2007-06-27
Estimated Expiration
Not applicable · inactive patent

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Abstract

In order to solve the above problem, disclosed as a first aspect is a method including the steps of analyzing a character string in a document into partial character strings; calculating, with respect to each of the partial character strings, a score incorporating appearance frequency of the partial character string; presenting the partial character strings and the scores to a user; determining which ones of the partial character strings have been selected by the user; storing the selected partial character strings as a safe partial character string list; and replacing, with predetermined replacement character strings, the partial character strings excluding the partial character strings existing in the safe partial character string list.
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Description

technical field

[0001] The present invention relates to a method, device and program for replacing information that should be kept secret in a document with different information. Background technique

[0002] In recent years, techniques for masking (replacing) character strings in documents need to be enhanced from the viewpoint of personal information protection. There is a known technique that meets this need. With this technique, words to be masked are not displayed by using a dictionary in which strings that should be masked are stored. For example, Patent Document 1 employs the following masking technique. First, based on the dictionary, the parts to be masked are detected from the input document. The detected parts are then presented to the user as a list of masked results to allow the user to correct the list, the contents of the corrected list serving as the mask body part.

[0003] With the described method, there is a possibility that there are mask candidates...

Claims

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