Domain dictionary creation by detection of new topic words using divergence value comparison
US7983902B2 · kind B2 · utility
43Cited by
8References
24Claims
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Key dates
| Filing date | Aug 23, 2007 |
| Grant date | Jul 19, 2011 |
| Priority date | — |
| Expiry date | Feb 15, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/258
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods, systems, and apparatus, including computer program products, to identify topic words in a document corpus that includes topic documents related to a topic are disclosed. A reference topic word divergence value based on the document corpus and the topic document corpus is determined. A candidate topic word divergence value for a candidate topic word is determined based on the document corpus and the topic document corpus. The candidate topic word is determined to be a topic word if the candidate topic word divergence value is greater than the reference topic word divergence value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.