Well-known since the netflix prize challenge: https://www.researchgate.net/publication/265973077_Robust_De-anonymization_of_Large_Datasets_How_to_Break_Anonymi

Well-known since the netflix prize challenge: https://www.researchgate.net/publication/265973077_Robust_De-anonymization_of_Large_Datasets_How_to_Break_Anonymity_of_the_Netflix_Prize_Dataset https://www.researchgate.net/publication/265973077_Robust_De...