Method and apparatus for finding related collections of linked documents using co-citation analysis
US6457028B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 29, 1999 |
| Grant date | Sep 24, 2002 |
| Priority date | — |
| Expiry date | Sep 29, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99935
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for identifying related collections of linked documents. In the method the links from a set of related documents are analyzed to identify a plurality of document collections. By analyzing only the link structure, a process intensive content analysis of the documents is avoided. A citation analysis technique, such as co-citation analysis, is performed on the set of documents to extract link information indicating links and link frequency between document collections. For co-citation analysis that information would include the frequency that both are linked to by another document collection. By using the link information, related document collections may then be identified using a suitable analysis technique, such as clustering or spreading activation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.