Method of producing alternate utterance hypotheses using auxiliary information on close competitors
US7676367B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 20, 2004 |
| Grant date | Mar 9, 2010 |
| Priority date | — |
| Expiry date | Apr 9, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/085
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method of constructing a list of alternate transcripts from a recognized transcript includes generating a list of close call records, matching partial sub-histories from the recognized transcript with one of the history pairs stored in each of the records, and substituting the other of the history pairs for the partial sub-history of the recognized transcript. A close call record is generated each time a pair of partial hypotheses attempt to seed a common word. Each close call record includes history information and scoring information associated with a particular pair of partial hypotheses seeding a common word. Alternate transcripts are constructed by substituting close call histories for partial histories of the recognized transcripts, and also by substituting close call histories for partial histories of other alternate transcript.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.