System for underlying spelling recovery
US5485372A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 1, 1994 |
| Grant date | Jan 16, 1996 |
| Priority date | — |
| Expiry date | Jun 1, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/232
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
In a grammar checking system which includes first tagging a sentence as to parts of speech, underlying spelling is recovered by removing the effects of capitalization of a word so that appropriate inflection and or spelling can be suggested by the system. In order to determine the underlying spelling the system determines whether a noun is a proper noun through the utilization of a part of speech tagger and the utilization of part of speech trigram probabilities, with capitalized and uncapitalized versions of the word having different trigram probabilities. The system also establishes whether a word is an ordinary word as opposed to a proper noun or other intrinsically capitalized word. With the system further determining which of two interpretations of the word is the best one.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.