Flexible MQDF classifier model compression
US7974476B2 · kind B2 · utility
2Cited by
7References
12Claims
0Family size
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Key dates
| Filing date | May 30, 2007 |
| Grant date | Jul 5, 2011 |
| Priority date | — |
| Expiry date | Apr 6, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F18/2453
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A memory footprint of an Modified Quadratic Discriminant Function (MQDF) pattern recognition classifier is reduced without resulting in unacceptable classification accuracy degradation. Covariance matrices for multiple classes are clustered into a smaller number of matrices where different classes share the same set of eigenvectors. According to another approach, different numbers of principal components are stored for different classes based on criteria such as class usage frequency, larger variation in writing, and the like, resulting in fewer principal components to be stored in memory.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.