Information retrieval apparatus
US7483921B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 17, 2006 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Nov 26, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
An apparatus including: a preference word obtainment unit that, when a search condition is input, obtains related words associated with keywords included in the search condition by a predetermined threshold or greater. Further, the preference word obtainment unit decreases the predetermined threshold to obtain related words, from a preference association dictionary when an expansion command is received. Moreover, the apparatus includes (i) a judgment unit which judges whether the related word obtained by the preference word obtainment unit is stored when the expansion command is received, (ii) a general word obtainment unit which obtains a related word from a general dictionary when it is judged that the related word obtained by the preference word obtainment unit is stored, and (iii) a retrieval unit which generates a search condition from the related word, obtains information meeting the generated search condition, and outputs the obtained information as a search result.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.