| 摘要 |
PROBLEM TO BE SOLVED: To realize high retrieving efficiency and high speed retrieval at the time of retrieving document data constituted in plural kinds of language. SOLUTION: A retrieval condition is inputted by a retrieval key inputting part 102, and Japanese character position information related with the position of each character of Japanese included in the inputted retrieval condition is prepared by a Japanese character position index preparing part 106. Also, word position information indicating the position of the word of language other than Japanese included in the retrieval condition is prepared by an English word position index preparing part 110. Then, document data pertinent to the retrieval condition are retrieved by a position list combining part 116 based on the prepared Japanese character position information and word position information. |
