Patent ID: 7958118

Claim:
A method of sorting out a search keyword showing a difference between two groups of searchers, the method being implemented on a computer-readable recording medium comprising instructions, that when executed, implement the method, comprising: creating a plurality of tuples associated with a plurality of keywords for a first group of searchers and a second group of searchers, wherein each tuple comprises a keyword, a number of searches of the keyword by the first group of searchers and a number of searches of the keyword by the second group of searchers; defining a data group comprising a group of the created tuples; creating a keyword value for each of the keywords by using the data group, wherein the keyword value is based on the number of searches of the keyword by the first group of searchers and the number of searches of the keyword by the second group of searchers; creating a keyword group associated with the keywords and the keyword value corresponding to each of the keywords; and creating an output group describing at least one attribute of each group of searchers, wherein the output group comprises the keyword group, wherein the keyword group comprises a group comprising the keyword, the keyword value, and a number of searches for the keyword, and the output group sorts the keyword group by the keyword value.