Table 1.1 Three levels of anonymization... | Emerald Publishing

Table 1.1

Three levels of anonymization on a demographic dataset. Left: original dataset. Center: masking the sensitive names for 1-anonymity. Right: generalizing Zip codes and age attributes for 4-anonymity.

Original Data			Anonymized Data			4-anonymized Data
Name	Zip Code	Age	ID	Zip Code	Age	ID	Zip Code	Age
Rick	19456	67	1	19456	67	1	19***	60-70
Nathan	30309	33	2	30309	33	2	30***	30-40
Yani	19445	64	3	19445	64	3	19***	60-70
Xiao	30457	35	4	30457	35	4	30***	30-40
Luciana	19456	67	5	19456	67	5	19***	60-70
Anastasia	30271	38	6	30271	38	6	30***	30-40
Marcia	19456	31	7	19456	31	7	30***	30-40
Yuki	19456	62	8	19456	62	8	19***	60-70

Original Data			Anonymized Data			4-anonymized Data
Name	Zip Code	Age	ID	Zip Code	Age	ID	Zip Code	Age
Rick	19456	67	1	19456	67	1	19***	60-70
Nathan	30309	33	2	30309	33	2	30***	30-40
Yani	19445	64	3	19445	64	3	19***	60-70
Xiao	30457	35	4	30457	35	4	30***	30-40
Luciana	19456	67	5	19456	67	5	19***	60-70
Anastasia	30271	38	6	30271	38	6	30***	30-40
Marcia	19456	31	7	19456	31	7	30***	30-40
Yuki	19456	62	8	19456	62	8	19***	60-70