Context based passage retreival and scoring in a question answering system
US9529894B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 16, 2016 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | Feb 16, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N5/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
According to an aspect, a question answering computer system determines a set of search terms for a given question. A plurality of passages that each includes at least one search term in the set of search terms is identified in response to a search of a document for search terms in the set of search terms. A passage from the plurality of passages is selected. A context based score of the selected passage that indicates the likelihood that the selected passage contains an answer to the question is generated based on criteria that specify a relationship among the set of search terms, content of the passage, and content of at least one other passage in the plurality of passages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.