Keywords extraction and enrichment via categorization systems
US9342590B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2010 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Feb 9, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/355
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Techniques for determining a set of keywords associated with a document are provided. A document is received that may be classified into a taxonomy that includes a plurality of categories. A categorization ranking is determined for each category for the received document. A set of categories of the taxonomy having highest categorization rankings is determined for the received document. Documents representing the set of categories having highest categorization rankings are combined together into a cumulative representative text that includes a plurality of terms. A cumulative term corpus importance score is determined for each term in the cumulative representative text. The cumulative term corpus importance score for a particular term indicates an importance of the particular term in a context of the cumulative representative text. A set of terms of the cumulative representative text having highest cumulative term corpus importance scores is selected to be keywords for the received document.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.