| 摘要 |
<P>PROBLEM TO BE SOLVED: To enable a user to easily search a required content. <P>SOLUTION: First knowledge information and second knowledge information associated with the first knowledge information are inputted. First relation information showing a relation of the first knowledge information to the second knowledge information is acquired from a database. Knowledge information having a relation shown by the first relation information, to the second knowledge information is acquired from the database. The acquired knowledge information is outputted as knowledge information similar to the first knowledge information, which is to be presented to a user. <P>COPYRIGHT: (C)2012,JPO&INPIT |
