Concept matching system
US7809551B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 1, 2005 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Sep 14, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/313
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system for retrieving documents related to a concept from a text corpus includes a set of stored semantic classes which are combinable to express the concept each class including a set of keywords, each set of keywords including at least one keyword. Syntactic rules are applied to identified text portions which include one or more of the keywords. A rule is satisfied when keywords from the first and second semantic classes are in any one of a plurality of syntactic relationships. A concept matching module identifies text portions within the text corpus which include one or more of the keywords, for applying the syntactic rules to the text portions, and for identifying those text portions which satisfy at least one of the rules. Documents to be retrieved may include at least one of the identified text portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.