Method and apparatus for score normalization for information retrieval applications
US6651057B1 · kind B1 · utility
94Cited by
2References
27Claims
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Key dates
| Filing date | Sep 1, 2000 |
| Grant date | Nov 18, 2003 |
| Priority date | — |
| Expiry date | Jan 23, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S707/99936
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A method and apparatus for normalizing a score associated with a document is presented. Statistics relating to scores assigned to a set of training documents not relevant to a topic arc determined. Scores represent a measure of relevance to the topic. After the various statistics have been collected, a score assigned to a testing document is normalized based on those statistics. The normalized score is then compared to a threshold score. Subsequently, the testing document is designated as relevant or not relevant to the topic based on the comparison.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.