Methods and systems for extracting keyphrases from natural text for search engine indexing
US9390161B2 · kind B2 · utility
Inventors
Key dates
| Filing date | Sep 24, 2010 |
| Grant date | Jul 12, 2016 |
| Priority date | — |
| Expiry date | Aug 16, 2031 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06N20/00
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
The present invention is a method and system for the extraction of keyphrases from natural text. For the purpose of this document, keyphrases are text segments that represent the main topic of a text. The method of the present invention may facilitate keyphrase extraction from any length of text. The text may be of several varieties, such as, for example a sentence, paragraph, document or collection of documents. Phrase separator methods may be applied to the text to extract phrases from the text. From these phrases the present invention may identify the one or more phrases that are integral to the meaning of the text and these may be identified as the keyphrases of the text. The text may be indexed using the keyphrases so that a search based upon any of the keyphrases will cause search engines and/or text retrieval means to retrieve the text.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.