| 摘要 |
PROBLEM TO BE SOLVED: To provide a search intention dictionary which allows user's search intention to be more accurately obtained.SOLUTION: A search intention dictionary creation device 1 extracts search queries each of which includes a keyword used for search and one or more keywords other than the keyword, from a search log DB 21 as search queries relating to the keyword. Next, terms resulting from deletion of the keyword in the search queries are taken as search intention candidates of the keyword, and terms selected from a set of terms resulting from deletion of each of the search intention candidates in the search queries acquired from the search log DB 21 are defined as coordinate terms for the candidate. Next, terms resulting from deletion of the coordinate terms in the search queries acquired from the search log DB 21 and including the coordinate terms are taken as search intention candidates of the coordinate terms, and a set of search intentions selected from all of these candidates is defined as search intention candidates relating to the set of the coordinate terms. On the basis of these search intention candidates and search intention candidates of the keyword, search intentions are classified to general search intentions and search candidates specific to the keyword. |
