Fast filtering for similarity searches on indexed data
US10885121B2 · kind B2 · utility
1Cited by
7References
13Claims
0Family size
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Key dates
| Filing date | Dec 13, 2017 |
| Grant date | Jan 5, 2021 |
| Priority date | — |
| Expiry date | Dec 15, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F16/41
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Methods and systems for searching for similar documents include comparing an input index of a requested document to one or more stored indices for respective stored documents to produce a similarity score for each of the stored documents. Each index indicates which of a plurality of queries matched a respective document. The stored documents are filtered to remove dissimilar documents based on a comparison of each respective similarity score to a threshold. A list of any stored documents that remain after said filtering is output.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.