| 摘要 |
PROBLEM TO BE SOLVED: To select advertisement information of high advertisement effects without selecting the advertisement information while using manually generated submission data.SOLUTION: A feature word extraction part 101 divides inputted article data into words and then extracts a word characterizing the article data as a feature word. A retrieval part 103 executes an inquiry to a search engine containing index information of advertisement content in an order of feature words determined on the basis of at least any one of a degree of the number of times of search, a position of appearance in the article data, whether the word is a person name, and a feature degree or IDF value indicating a degree of eccentricity of appearance in each document category of document information. The retrieval part 103 acquires a plurality of pieces of advertisement content as a search result, and an information selection part 104 selects advertisement information subjected to advertisement distribution from among the plurality of pieces of acquired advertisement content. |
