It’s not what you’d traditionally call a homomorphic crypto system, but it’s more than just anonymization or privacy preservation. You might call it a ‘homomorp

It’s not what you’d traditionally call a homomorphic crypto system, but it’s more than just anonymization or privacy preservation. You might call it a ‘homomorphic’ data projection, e.g. matrix multiplication, but I don’t know the details. Technically, I’m not sure it fits the definition of a cryptographic system, because encrypted data is defined as indistinguishable from noise, but obviously the data scientists must find information within it. (There may be something going on that I can’t imagine at the moment.)