Document-based synonym generation
US7890521B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 7, 2008 |
| Grant date | Feb 15, 2011 |
| Priority date | — |
| Expiry date | Feb 22, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/247
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
One embodiment of the present invention provides a system that automatically generates synonyms for words from documents. During operation, this system determines co-occurrence frequencies for pairs of words in the documents. The system also determines closeness scores for pairs of words in the documents, wherein a closeness score indicates whether a pair of words are located so close to each other that the words are likely to occur in the same sentence or phrase. Finally, the system determines whether pairs of words are synonyms based on the determined co-occurrence frequencies and the determined closeness scores. While making this determination, the system can additionally consider correlations between words in a title or an anchor of a document and words in the document as well as word-form scores for pairs of words in the documents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.