Term extraction from service description documents
US8255405B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 30, 2009 |
| Grant date | Aug 28, 2012 |
| Priority date | — |
| Expiry date | Feb 25, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/3334
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Terms are extracted from service description documents describing desired services, and the terms are used to search for candidate service providers operable to provide the desired services. A matrix of terms and documents are determined from the service description documents. Singular value decomposition (SVD) is used to decompose the matrix. Eigen vectors from the SVD decomposition are weighted by top k singular values in a diagonal matrix S of singular values also generated from the decomposition. The weighted eigen vectors are used to rank terms from the matrix X based on relevance of the terms to the requirements for desired services described in the service description documents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.