Geotagging unstructured text
US9262438B2 · kind B2 · utility
6Cited by
5References
25Claims
0Family size
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Key dates
| Filing date | Aug 6, 2013 |
| Grant date | Feb 16, 2016 |
| Priority date | — |
| Expiry date | Feb 6, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/954
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Mechanisms are described to extract location information from unstructured text, comprising: building a language model from geo-tagged text; building a classifier for differentiating referred and physical location; given unstructured text, identifying referred location using the language model (that is, the location to which the unstructured text refers); given the unstructured text, identifying if referred location is also the physical location using the classifier; and predicting (that is, performing calculation(s) and/or estimation(s) of degree of confidence) of referred and physical location.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.