Recognition using re-recognition and statistical classification
US8930179B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2009 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | May 27, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/228
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Architecture that employs an overall grammar as a set of context-specific grammars for recognition of an input, each responsible for a specific context, such as subtask category, geographic region, etc. The grammars together cover the entire domain. Moreover, multiple recognitions can be run in parallel against the same input, where each recognition uses one or more of the context-specific grammars. The multiple intermediate recognition results from the different recognizer-grammars are reconciled by running re-recognition using a dynamically composed grammar based on the multiple recognition results and potentially other domain knowledge, or selecting the winner using a statistical classifier operating on classification features extracted from the multiple recognition results and other domain knowledge.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.