Patent ID: 7243304
Filing Date: 2007-07-10
Classification: G06F

Abstract:
1. An apparatus for creating a map of a real name word to an anonymous word for an electronic document to be provided to a document processing person, the anonymous word being a more general and less specific meaning of the real name word, the apparatus comprising: a processor; an anonymous level decision unit configured to decide an anonymous level as an abstract degree to anonymize the real name word included in the electronic document, wherein the anonymous level decision unit sets the anonymous level for the real name word to a low level when a usage frequency of the real name word is high in the electronic document; a dictionary configured to store a correspondence relationship between the real name word and at least one anonymous term as an abstract concept of the real name word, wherein each anonymous term corresponds to the anonymous level; an additional label generation unit configured to generate an additional label uniquely corresponding to the real name word if said dictionary stores the same anonymous term corresponding to a plurality of real name words included in the electronic document; and a map creation unit configured to select the at least one anonymous term corresponding to the real name word and the decided anonymous level from said dictionary, to generate an anonymous word corresponding to the real name word by adding the additional label to the anonymous term, and to correspondingly store the real name word and the anonymous word, whereby a map representing a correspondence relationship between the real name word and the anonymous word is stored in correspondence with an identifier of the document processing person.