JPS648441A - Character string retrieving system - Google Patents
Character string retrieving systemInfo
- Publication number
- JPS648441A JPS648441A JP62162326A JP16232687A JPS648441A JP S648441 A JPS648441 A JP S648441A JP 62162326 A JP62162326 A JP 62162326A JP 16232687 A JP16232687 A JP 16232687A JP S648441 A JPS648441 A JP S648441A
- Authority
- JP
- Japan
- Prior art keywords
- character string
- text
- characters
- retrieved
- character
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Information Retrieval, Db Structures And Fs Structures Therefor (AREA)
Abstract
PURPOSE:To improve processing efficient at the time of retrieving various character strings in the same text by previously searching the positions of specific characters in the text. CONSTITUTION:The titled system is provided with a text table 1, an address table 2, a leading address table 3 and the table of a character string 4 to be retrieved. Characters are extracted from the head of the character string one by one, the positions of the characters on the text are recognized by the addresses of entries corresponding to the characters in the address table 3 and whether the character string exists in the position or not is decided from the table 2 based on the decided result whether the addresses of two entries for respective characters in the character string 4 are continued or not. Since only the address values in the address table are used for deciding whether the character string to be retrieved exists on the position or not and an address indicating the succeeding position of the character to be retrieved is stored in said constitution, data access can be executed only by the number of times of appearance of a character included in the character string to be retrieved in the text, so that the efficiency of retrieval processing can be improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162326A JPS648441A (en) | 1987-07-01 | 1987-07-01 | Character string retrieving system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62162326A JPS648441A (en) | 1987-07-01 | 1987-07-01 | Character string retrieving system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS648441A true JPS648441A (en) | 1989-01-12 |
Family
ID=15752411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62162326A Pending JPS648441A (en) | 1987-07-01 | 1987-07-01 | Character string retrieving system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS648441A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986933A (en) * | 1989-03-31 | 1991-01-22 | Shoei Chemical Inc. | Resistor composition |
US5357431A (en) * | 1992-01-27 | 1994-10-18 | Fujitsu Limited | Character string retrieval system using index and unit for making the index |
-
1987
- 1987-07-01 JP JP62162326A patent/JPS648441A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4986933A (en) * | 1989-03-31 | 1991-01-22 | Shoei Chemical Inc. | Resistor composition |
US5357431A (en) * | 1992-01-27 | 1994-10-18 | Fujitsu Limited | Character string retrieval system using index and unit for making the index |
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