Fig 1.
Effect of privacy budget on random noise.
Fig 2.
Effect of privacy budget on the functions of different dataset.
Fig 3.
Flow chart of DPK-Means clustering algorithm based on contour coefficients.
Table 1.
Datasets used in the experiment.
Fig 4.
Availability measurement of datasets “Blood” and “Gamma”.
Fig 5.
Parallel efficiency comparison in the algorithm in this paper and DP K-means.
Fig 6.
Stability of running time of data sets under different privacy budgets.
Fig 7.
Parallel the algorithm in this paper acceleration ratio.