Semi-supervised part-of-speech tagging
US8275607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2007 |
| Grant date | Sep 25, 2012 |
| Priority date | — |
| Expiry date | Jul 23, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/268
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A word is selected from a received text and features are identified from the word. The features are applied to a model to identify probabilities for sets of part-of-speech tags. The probabilities for the sets of part-of-speech tags are used to weight scores for possible part-of-speech tags for the selected word to form weighted scores. The weighted scores are used to select a part-of-speech tag for the word and the selected part of speech tag is stored or output. The scores for the possible part-of-speech tags are based on variational approximation parameters trained from a sparse prior over probability distributions describing the probability of a part-of-speech tag given a word.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.