System for processing textual inputs using natural language processing techniques
US6901399B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 16, 1998 |
| Grant date | May 31, 2005 |
| Priority date | — |
| Expiry date | May 8, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system filters documents in a document set retrieved from a document store in response to a query. The system obtains a first set of logical forms based on a selected one of the query and the documents in the document set. The system obtains a second set of logical forms based on another of the query and the documents in the document set. The system then uses natural language processing techniques to modify the first logical forms to obtain a modified set of logical forms. The system filters documents in the document set based on a predetermined relationship between the modified set of logical forms and the second set of logical forms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.