3 ms·

What happened to differential privacy?

• deleted 3y ago
  [deleted]
• deleted 3y ago
  [deleted]
• saulrh 3y ago
  It doesn't work on arbitrary data. Hand-crafted metrics on structured data, yeah. Free text, no. Data that you don't know anything about, also not really.
• nl 3y ago
  It works. But understand what you are doing: you are adding noise to individual's data to make them less identifiable within a specified set of data. The amount of noise you need to add depends on the size of the set they are within. The OP is also right: For arbitrary customer data (within arbitrary sets of data) you can't guarantee anonymization. There are also multi-party computation systems, homomorphic encryption and federated learning approaches that all provide different approaches for parts of the private machine learning problem. It's hard.
  • bigiain 3y ago
    Worth investigation "k-anonymity" as well. https://en.wikipedia.org/wiki/K-anonymity https://en.wikipedia.org/wiki/K-anonymity k-anonymity is an attempt to solve the problem "Given person-specific field-structured data, produce a release of the data with scientific guarantees that the individuals who are the subjects of the data cannot be re-identified while the data remain practically useful." One serious problem with that approach is that no matter how well you k-anonymise your data set, someone else's dataset may deanonymise yours.