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Table 1 Three Q-ID attributes example

From: Improving MapReduce privacy by implementing multi-dimensional sensitivity-based anonymization

Q-id (attribute) Q-id type Probability
Q-id0 (IQ_value) Interval IQ_value = [50–150] P(Q-ID0) = 1/(150 − 50) = 0.01
Q-id1 (Student_country) Taxonomy tree Student_Country_Level1 = {German, French, Chinese, Kenyan, American…} Student_Ancestry-Level2 = {Caucasian, Asian, Middle Eastern, African, Red Indian…} Q-id_level-3 = {human} P(Q-ID1-L2) = 1/150 = 0.007 P(Q-ID1-L3) = 1/200 = 0.005
Q-id2 (Student_Grade) Suppression Student_Grade = {A+, A, A−, B+, B, B−, C+, C, C−, D+, D, D−, F}. P(Q-ID2) = 1/13 = 0.077