| 摘要 |
PROBLEM TO BE SOLVED: To appropriately and easily present information on a desired field or the trend of a service. SOLUTION: This information presentation device includes: a retrieval means 202 for accessing a search site 103 on a network 102 for retrieval based on the input of a keyword for retrieval, and acquiring a sentence as a retrieval result and an address on the network 102; a re-execution means 202a for causing the retrieval means 202 to retry retrieval using the same keyword; a page analyzing means 204 for decomposing a sentence to be output for every retrieval into words by the retrieval means 202, and for creating a word database 205 in which the number of detected words for every retrieval is associated with an address on the network 102; a trend determination means 206 for determining the trend of appearance on the network 102 of the words based on the increase/decrease of the number of detected words analyzed by the page analyzing means 204 in every retrieval by the retrieval means 202; and a trend output means 207 for outputting the determined result of the trend determination means 206. COPYRIGHT: (C)2009,JPO&INPIT
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