Automatic cognate detection in a computer-assisted language learning system
US9400781B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2016 |
| Grant date | Jul 26, 2016 |
| Priority date | — |
| Expiry date | Feb 8, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L2015/081
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to an aspect, a first word in a first language and a second word in a second language in a bilingual corpus are stemmed. A probability for aligning the first stem and the second stem and a distance metric between the normalized first stem and the normalized second stem are calculated. The first word and the second word are identified as a cognate pair when the probability and the distance metric meet a threshold criterion and stored as a cognate pair in a set of cognates. A candidate sentence in the second language is retrieved from a corpus. The candidate sentence is filtered by the active vocabulary of a user in the second language and the set of cognates. A sentence quality score is calculated for the candidate sentence; and the candidate sentence is ranked for presentation to the user based on the sentence quality scorer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.