29 ms·

Is that even possible? If you use X data to generate a model and then delete the data and keep the model, you could in theory use the model to re-identify that

by lalos 7y ago

Is that even possible? If you use X data to generate a model and then delete the data and keep the model, you could in theory use the model to re-identify that user that deleted the data with a high degree of confidence.

duxup 7y ago
I think that's a good question. They could delete it... and then repopulate that data the next minute pretty easily.
- owaislone 7y ago
  They cannot repopulate the data from the model but the models can be analyzed to identify people.
  - duxup 7y ago
    Good point.
aiiane 7y ago
In general models trained on individual users' data get rebuilt when the underlying data changes so as to properly reflect the current state of the source data.
- tjpnz 7y ago
  Do you have any specific policies around this? I suspect it would be hard to say definitively that there aren't remnants of data I've asked Google to forget still kicking around.