| 摘要 |
PURPOSE: A method and a system for searching an extended keyword pool are provided to supply a keyword in a wide range by generating a keyword pool through plural keyword sets having the purchase history in keyword searching. CONSTITUTION: A purchased keyword set is generated by searching a keyword having search advertisement purchasing history. Other keyword sets are generated by extracting the keyword from a source. An integrated search keyword set is generated by searching among the purchased keywords and a query including other keywords a keyword for which the referring frequency is larger than a certain number. The related or extended keyword for a search keyword is provided by using the purchase keyword group, the other keyword groups, and a keyword which is included in the integrated keyword group(S204). |
