PROBLEM TO BE SOLVED: To efficiently process calculation required by association or the like among words and to reduce load on a device even when an amount of words to deal with increases in an encyclopedia browsing server device that receives words to be headers from a terminal device, creates encyclopedia images corresponding to the received words, and provides them.;SOLUTION: A server device Sv has a database which divides a list showing an association among related words with respect to words to be headers comprising an encyclopedia into a plurality of clusters, tables the created list, and stores it. The server searches the database according to the words received from the terminal device, searches for a word in strong association, two-dimensionally arranges words in strong association according to the searched words and information showing the degree of association, and creates as an encyclopedia image a map image connecting the words by a line of thickness according to the information showing the degree of association.;COPYRIGHT: (C)2015,JPO&INPIT
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