Research Article

Protecting Check-In Data Privacy in Blockchain Transactions with Preserving High Trajectory Pattern Utility

Table 3

Distance index for each sensitive location.

l1
0.100.200.40

l2
0.140.18

l4
0.200.220.65

l5
0.240.360.45

l7
0.180.190.580.680.690.72

l8
0.110.320.500.75