| 摘要 |
PROBLEM TO BE SOLVED: To output information on a brand corresponding to a document such as an analyst report referring to a designated keyword, as a retrieval result, with respect to the designated keyword.SOLUTION: A retrieval engine 200 comprises: a crawler c (240c) for crawling a document DB 120 which holds pieces of document data describing about each of brands at predetermined timing, and creating a document index 220 for retrieval of full text; and a retrieval processing unit 250 for replying to a retrieval request from a business terminal 300, by outputting a record related to the document data which matches, from the document index 220, as a retrieval result. The crawler c (240c) adds information specifying the brand corresponding to the document data, to the record related to the index of each document data recorded in the document index 220, and the business terminal 300 has a retrieval result processing unit 310 for displaying a list of information related to the brand included in the retrieval result outputted from the retrieval engine 200. |
