Document retrieval system
US5168565A · kind A · utility
129Cited by
10References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 13, 1989 |
| Grant date | Dec 1, 1992 |
| Priority date | — |
| Expiry date | Jan 13, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99935
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A document retrieval system employs a keyword connection table which contains relation information of keyword connections respectively coupling two arbitrary keywords which are used for retrieving registered documents. The relation information at least includes a relation name and a relationship describing the relation between the two arbitrary keywords. The relation information may dynamically change depending on a frequency of use of the keywords, that is, by a learning function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.