| 摘要 |
PROBLEM TO BE SOLVED: To execute a related word extraction method having more versatility.SOLUTION: An information processor 100 acquires a history from a history table 120, generates a combination of content selected from respective related types by using the history, also generates a combination reference number being information of the number of users who refer to both content in the combination, extracts feature words from content of the respective related types, evaluates a combination of feature words on the basis of at least an appearance degree in the combination of feature words selected from the respective related types, and the content combination reference number, and determines whether the combination of the feature words is the related words on the basis of a result of the evaluation. |
