Place name information extraction apparatus and extraction method thereof and storing medium stored extraction programs thereof and map information retrieval apparatus
US7240061B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 23, 2001 |
| Grant date | Jul 3, 2007 |
| Priority date | — |
| Expiry date | Feb 9, 2023 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99934
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A place name information extraction apparatus in which not only a place name expression appeared in a text is extracted but also the type of the extracted place name expression can be judged, and a place name information extraction method of the apparatus, and a storing medium stored place name information extraction programs of the method, and a map information retrieval apparatus used the place name information extraction apparatus are provided. The place name information extraction apparatus provides a place name expression detecting means that detects a place name expression appeared in a text and its position appeared the place name expression in the text, and a place name type judging means that judges a place name type, which signifies a meaning role of the place name expression appeared in the text, by analyzing before and after the position appeared the place name expression in the text.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.