Secure computer evaluation of k-nearest neighbor models
US9825758B2 · kind B2 · utility
7Cited by
23References
20Claims
0Family size
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Key dates
| Filing date | Dec 2, 2014 |
| Grant date | Nov 21, 2017 |
| Priority date | — |
| Expiry date | Dec 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2209/24
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A user device and one or more server computers securely evaluate a k-nearest neighbor model, with reasonable computation speed and bandwidth utilization, using a combination of techniques. The user device encrypts input vectors using a client's public key to keep client information private. The server computer homomorphically computes a distance between the encrypted input vector and vectors stored in the k-nearest neighbor model. The server computer then engages in a minimization process which results in the user device receiving classification vectors corresponding to the k-nearest neighbors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.