PURPOSE: A creative keyword system and a creative keyword suggesting method using the same are provided to suggest new relation based on the relation between keywords of users and perform modification according to the reaction of the users. CONSTITUTION: A first setting unit (26) sets a coordinate area to memories equipped in a database, and sets a plurality of information as the basic unit of a group type. A second setting unit (28) overlaps a plurality of information in which at least N or more network areas are included, and sets a first restriction area to an area including M or less network area. A comparing unit (29) compares the energy consumption between the first restriction area and the peripheral area thereof. A control unit (30) suggests information, including the M or less area, as a related keyword according to the comparison result. [Reference numerals] (26) First setting unit; (27) Conversion unit; (28) Second setting unit; (29) Comparing unit; (30) Control unit
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