Research Article
Privacy-Preserving Location-Based Query Using Location Indexes and Parallel Searching in Distributed Networks
Table 1
Experimental parameters.
| Average service delay request (second) | Average location precision (mile) | Request amount | Average spatial request () | Average temporal request () | Minimum radius in average anonymous area (mile) | Maximum radius in average anonymous area (mile) |
| 1 | 50.03 | 466034 | 4.49 | 4.50 | 274.94 | 637.11 | 1 | 50.04 | 503432 | 3.50 | 3.50 | 275.43 | 637.43 | 1 | 50.08 | 453293 | 2.50 | 2.50 | 275.10 | 636.67 | 5 | 50.06 | 457712 | 4.50 | 4.50 | 275.08 | 637.25 | 5 | 49.98 | 446796 | 3.50 | 3.50 | 275.19 | 636.99 | 5 | 50.01 | 442778 | 2.50 | 2.50 | 275.12 | 637.86 | 10 | 50.08 | 456924 | 4.50 | 4.50 | 274.79 | 637.74 | 10 | 49.93 | 697428 | 3.50 | 3.49 | 275.01 | 637.54 | 10 | 49.98 | 681940 | 2.50 | 2.49 | 274.84 | 637.43 | 10 | 50.00 | 493648 | 2.50 | 2.50 | 525.21 | 1263.51 | 10 | 49.97 | 455932 | 2.49 | 2.50 | 774.50 | 1387.06 | 20 | 49.97 | 448366 | 2.50 | 2.51 | 275.27 | 637.64 | 30 | 50.03 | 472418 | 2.50 | 2.50 | 275.37 | 637.87 |
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