Server, control method thereof, and system for producing rankings of search terms whose popularities increase rapidly

A server comprising:

• a storage configured to store a ranking value table including ranking values corresponding to rankings of search terms;
• and
• a controller configured to identify first ranking values corresponding to previous rankings of a plurality of search terms and second ranking values corresponding to current rankings of the plurality of search terms by using the ranking value table, obtain difference values based on differences between the first ranking values and the second ranking values of the plurality of search terms, respectively;
• identify popularity rankings of the plurality of search terms by using the difference values;
• and provide the popularity rankings of the plurality of search terms to a user terminal upon a request from the user terminal
• wherein the controller is further configured to identify two or more pairs each including a first ranking, which is a previous ranking, and a second ranking, which is a current ranking, ranking values of the first ranking and the second ranking of each pair being designated to have the same ranking difference therebetween,
• wherein the controller is further configured to generate ranking values for the identified two or more pairs by comparing the first ranking of each pair and, for a pair having a higher first ranking, providing a higher ranking value to the second ranking of the pair and generate the ranking value table based on the generated ranking values.

A system for generating popularity rankings of search terms, the system comprising:

• a plurality of user terminals;
• a search term ranking provider server configured to transmit rankings of a plurality of search terms according to frequencies of the plurality of search terms being searched by the plurality of user terminals;
• and
• a server configured to generate a ranking value table including ranking values corresponding to rankings of search terms, identify first ranking values corresponding to previous rankings of the plurality of search terms and second ranking values corresponding to current rankings of the plurality of search terms, obtain difference values based on differences between the first ranking values and the second ranking values of the plurality of search terms, respectively, identify popularity rankings of the plurality of search terms by using the difference values, and provide the popularity rankings of the plurality of search terms to a user terminal upon a request from the user terminal,
• wherein the server is configured to generate the ranking value table by performing:
• identifying two or more pairs each including a first ranking, which is a previous ranking, and a second ranking, which is a current ranking, the first ranking and the second ranking of each pair being designated to have the same ranking difference therebetween;
• generating ranking values for the identified two or more pairs by comparing the first ranking of each pair and, for a pair having a higher first ranking, providing a higher ranking value to the second ranking of the pair;
• and
• generating the ranking value table based on the generated ranking values.