Automatic relevance and variety checking for web and vertical search engines
US7558787B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 5, 2006 |
| Grant date | Jul 7, 2009 |
| Priority date | — |
| Expiry date | Mar 22, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99935
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for automatically checking the relevance and variety of search results are provided. A query is submitted to a search engine, which uses a search algorithm to obtain search results based on the query. A set of the top n related terms for the query is identified. For each related term in the set of terms, its relative frequency in relation to all terms in the set of terms is determined. If the term does not occur in any of the results, then a loss in variety proportional to the relative term frequency for the term has occurred. Otherwise, the relevance of the search results is calculated by comparing the proportion of results containing the term with the relative term frequency for a term. This process is repeated for all terms in the set of related terms to produce a total variety and relevance for the results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.