Database for uploading, storing, and retrieving similar documents
US8200695B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2007 |
| Grant date | Jun 12, 2012 |
| Priority date | — |
| Expiry date | Oct 30, 2028 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/3334
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Provided is a system of retrieving a document. The system includes a DB storing a document, a document feature writing unit, a query input unit, a keyword extraction unit, a weighting unit, a document retrieving unit, and an output unit. The document feature writing unit extracts attribute information of the document stored in the document DB and writes an index for the document based on the attribute information. The query input unit receives a query input by a user. The keyword extraction unit extracts a keyword from the query. The weighting unit assigns a weight to the extracted keyword using the index. The document retrieving unit retrieves a similar document using the keyword with the assigned weight. The output unit displays the similar document retrieved by the document retrieving unit to a user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.