Detecting zero-result search queries
US7949657B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 11, 2007 |
| Grant date | May 24, 2011 |
| Priority date | — |
| Expiry date | Mar 3, 2029 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/951
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A processing device and method may be provided for determining whether a zero search result may be produced with respect to a search for a document including all words of a word group. An index, with respect to words included in a group of documents, may be searched for documents including all words of the word group when a zero search result is determined not likely to occur with respect to the search for the document including all of the words of the word group. A method for creating multiple types of data structures corresponding to word grouping collections may further be provided to store occurrence information indicating a likelihood of a presence of a document including all words of a word group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.