Locating and correcting erroneously recognized portions of utterances by rescoring based on two n-best lists
US5712957A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 8, 1995 |
| Grant date | Jan 27, 1998 |
| Priority date | — |
| Expiry date | Sep 8, 2015 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/226
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of repairing machine-recognized speech is comprised of the steps of receiving from a recognition engine a first n-best list of hypotheses and scores for each hypothesis generated in response to a primary utterance to be recognized. An error within the hypothesis having the highest score is located. Control signals are generated from the first n-best list which are input to the recognition engine to constrain the generation of a second n-best list of hypotheses, and scores for each hypothesis, in response to an event independent of the primary utterance. The scores for the hypotheses in the first n-best list are combined with the scores for the hypotheses in the second n-best list. The hypothesis having the highest combined score is selected as the replacement for the located error.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.