System and method for question answering document retrieval
US7587420B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 22, 2004 |
| Grant date | Sep 8, 2009 |
| Priority date | — |
| Expiry date | Dec 4, 2024 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99948
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A retrieval device (22) retrieves associated documents on the basis of a keyword contained in a question serving as a retrieval request in question form from a user. The retrieval device (22) extracts descriptions associated with the keyword and contained in the retrieved documents as first summaries. A summary extraction unit (232) extracts descriptions corresponding to answers matching the question type of the question determined by a question type determination unit (231) as second summaries from original-document data which forms documents indicated by the document retrieval results. The original-document data is included in original-document data stored in an original-document database and forming each document as a retrieval target. An interface (21) displays the document retrieval results and the list of the extracted second summaries on a display device. The document retrieval results include the list of the extracted first summaries.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.