Multi-concept latent semantic analysis queries
US9026535B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 2, 2013 |
| Grant date | May 5, 2015 |
| Priority date | — |
| Expiry date | Jan 2, 2033 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/358
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method includes accessing text, identifying a plurality of terms from the text, determining a plurality of term vectors associated with the identified plurality of terms, and clustering the determined plurality of term vectors into a plurality of clusters, the plurality of clusters comprising a first and a second cluster, the first and second clusters each comprising two or more of the determined term vectors. The method further includes creating a first pseudo-document according to the first cluster, creating a second pseudo-document according to the second cluster, identifying a first set of terms associated with the first cluster using latent semantic analysis (LSA) of the first pseudo-document, identifying a second set of terms associated with the second cluster using LSA of the second pseudo-document, and combining the first and second sets of terms into a list of output terms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.