. Author manuscript; available in PMC: 2019 Dec 23.

Published in final edited form as: Conf Comput Commun Secur. 2019 Nov;2019:719–736. doi: 10.1145/3319535.3363209

Table 2:

effect of sparsity of databases. “mean error” is over the randomly picked n records from the possible values of the records for each dataset for SP and DP mechanisms for (β, r)-AIQ. “mean error (anomalies)” is only over the anomalous records in the n picked records. Here, n is 20% of the size of the dataset and ε = 0.1.

Dataset	mean error		mean error (anomalies)
Dataset	SP	DP	SP
Credit Fraud	1.1127E–21	0.4750	1.1127E–21
APS Trucks	2.9719E–13	0.4750	2.9719E–13
Synthetic	3.2173E–5	0.4750	3.2173E–5
Mammography	0.0022	0.4749	0.0021
Thyroid	0.0870	0.4750	0.0867