Training a ranking function using propagated document relevance
US8001121B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 2006 |
| Grant date | Aug 16, 2011 |
| Priority date | — |
| Expiry date | Oct 26, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/3331
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and system for propagating the relevance of labeled documents to a query to unlabeled documents is provided. The propagation system provides training data that includes queries, documents labeled with their relevance to the queries, and unlabeled documents. The propagation system then calculates the similarity between pairs of documents in the training data. The propagation system then propagates the relevance of the labeled documents to similar, but unlabeled, documents. The propagation system may iteratively propagate labels of the documents until the labels converge on a solution. The training data with the propagated relevances can then be used to train a ranking function.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.