Document retrieving method in a document managing system
US5568640A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 20, 1994 |
| Grant date | Oct 22, 1996 |
| Priority date | — |
| Expiry date | Sep 20, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99931
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A document retrieving method in a document management system which manages documents, using a computer. The classification of documents is managed in accordance with a plurality of node trees constructed in a hierarchical structure. Each document is related to at least one node among a plurality of nodes in the node trees. In retrieval, an OR merge operation is performed on documents related to all the nodes ranging from the target node and extending through all lower nodes linked directly and indirectly to the target mode of a designated node tree to form a collection of documents. When a different node tree is designated, a similar OR operation is performed on documents related to all the nodes ranging from the target node to lower nodes linked directly and indirectly to the target node to create another collection of documents. These steps are repeated and an AND-marge operation is performed on the obtained collections of documents to create and output a final collection of documents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.