Quasi-semantic question answering
US10489393B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2016 |
| Grant date | Nov 26, 2019 |
| Priority date | — |
| Expiry date | Jan 29, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG10L13/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A voice-controlled question answering system that uses both a knowledge base and a detailed index of other sources that may be accessible over the Internet. The knowledge base is used to answer questions of more general interest whose answers are contained in the knowledge base. The index is used to answer more complex questions that are not answerable using the knowledge base. Web and other sources are analyzed to create the index, where text segments are indexed along with data describing the text segments in a quasi-semantic way. Quasi-semantic features are extracted from incoming spoken questions and used, along with machine learning trained models, to identify an indexed text segment that includes the answer to the question. The text segment may then be rearranged or simply passed to a speech synthesizer so the answer may be spoken aloud to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.