Automatic detection and protection of personally identifiable information
US10970414B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 23, 2018 |
| Grant date | Apr 6, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG06F40/284
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
Certain aspects of the present disclosure provide techniques for detecting and protecting personally identifiable information. In one example, a method includes retrieving a user-specific dataset from a multi-user dataset; filtering the user-specific dataset to create a user-specific data subset; determining a user frequency of each user-specific token of a plurality of user-specific tokens in the user-specific data subset; determining a multi-user frequency for each user-specific token of the plurality of user-specific tokens in the multi-user dataset; computing a frequency ratio based on the user-specific frequency and the multi-user frequency of each user-specific token of the plurality of user-specific tokens; and protecting each user-specific token whose frequency ratio is above a frequency ratio threshold.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.