RELATED TERM ACQUIRING DEVICE, RELATED TERM ACQUIRING METHOD, TECHNOLOGY TREND INFORMATION CREATING DEVICE, TECHNOLOGY TREND INFORMATION CREATING METHOD, AND PROGRAM

摘要

[PROBLEMS] A related term acquiring device for acquiring a related term by using document citation relation. [MEANS FOR SOLVING PROBLEMS] The related term acquiring device comprises a document information storage section (11) storing document information, a term information receiving section (12) for receiving term information, a document information acquiring section (13) for acquiring a part of document information at least including cited document identification information for identifying other documents cited in the document information including term information, a cited document information acquiring section (14) for acquiring a part of the cited document information identified by the acquired cited document identification information and corresponding to a predetermined item from the document information storage section (11), a related term information acquiring section (15) for acquiring related term information related to the term information from the part of the cited document information, and a related term information output section (16) for outputting the related term information.