Method and system for learning ontological relations from documents
US7630981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 26, 2006 |
| Grant date | Dec 8, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L15/183
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of an ontological determination method for use in natural language processing applications are described. In one embodiment, shallow lexico-syntactic patterns are applied to identify relations by extracting term features to distinguish relation terms from non-relation terms, identifying coordinate relations for every adjacent terms; identifying short-distance ontological (e.g., hypernym or part-whole relations) for other adjacent terms based on term features and lexico-syntactic patterns; and then inferring long-distance hypernym and part-whole relations based on the identified coordinate relations and the short-distance relations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.