Determining candidate terms related to terms of a query
US8280886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 10, 2009 |
| Grant date | Oct 2, 2012 |
| Priority date | — |
| Expiry date | Apr 6, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/3322
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A predetermined number of temporary terms are obtained that have the highest differential affinity to each of a number of candidate terms. Each temporary term and the associated differential affinity is placed into a set of temporary terms. An average differential affinity is calculated for each temporary term of the set of temporary terms, the average differential affinity representing an average of differential affinities from the each temporary term to every term of the initial set of terms. One or more terms with an average differential affinity that fails to satisfy a predetermined threshold are removed from the temporary set. One or more terms of the temporary set with differential affinities above the threshold are placed into the set of candidate terms. One or more terms of the set of candidate terms are selected and output to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.