Re-ranking search results based on lexical and ontological concepts
US9177057B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 8, 2010 |
| Grant date | Nov 3, 2015 |
| Priority date | — |
| Expiry date | Aug 19, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/951
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Search result re-ranking is provided by employing a concept graph from a metabase. When a search query is received, a query context of the search query is analyzed to identify dominant concepts for the search query. The dominant concepts are expanded by identifying the dominant concepts within a concept graph and identifying additional concepts having a strong relationship with the dominant concepts within the concept graph. A set of search results for the search query is analyzed to determine strength of relationship of each search result to the expanded concepts. The search results are re-ranked based on the strength of relationship of each search result to the expanded concepts and the strength of relationship of each expanded concept to the dominant concepts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.