Information retrieval method with natural language interface
US6778951B1 · kind B1 · utility
283Cited by
120References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 9, 2000 |
| Grant date | Aug 17, 2004 |
| Priority date | — |
| Expiry date | Aug 29, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99935
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method for retrieving documents in a knowledge database is disclosed in which a natural language query question is mapped to a plurality of equivalent strings. Both relevancies in meaning and in wording pattern are taken into account in ranking the equivalent strings by introducing respective weight factors. A document coupled to the top ranked equivalent string is retrieved and displayed to the questioner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.