| 摘要 |
PROBLEM TO BE SOLVED: To fast perform full text retrieval designating an element of a structured document by encoding the structure information of the structured document and adding it to a retrieval file about the full text retrieval of a structured document. SOLUTION: A registering part 11a prepares structure information, tag management information, index information and text information from structured information and registers them in a data managing part 12. A retrieval information storing part 12c simultaneously manages retrieval information for fast retrieval and information obtained by encoding structure information. A retrieving part 11e reads the retrieval information of a data retrieving part and performs fast full text retrieval according to an inputted retrieval condition. Further, in the case of retrieval designating an element, a document structure deciding part 11e collates it with structure information attached to retrieval to narrow down a retrieval condition. A result producing part 11f returns a document satisfying the retrieval condition to a result outputting part 18. |
