Table 2 Base-table 16 from the paper showing the counts and percentages for the original data and the three anonymization methods.

From: Comparison of Three Anonymization Tools for a Health Fitness Study

 

Commuting Modes

Commuting from school

Car

Public

Wheels

Walk

Total

Commutingto school

Car

59 (8.1%) 50 (7.0%) 20 (2.8%) 58 (8.1%)

54 (7.6%) 72 (10.1%) 48 (6.7%) 54 (7.6%)

1 (0.1%) 0 (0.0%) 15 (2.1%) 0 (0.0%)

57 (8.0%) 60 (8.4%) 94 (13.2%) 57 (8.0%)

170 (23.8%) 182 (25.5%) 177 (24.8%) 169 (23.7%)

Public

10 (1.4%) 6 (0.8%) 37 (5.2%) 8 (1.1%)

190 (26.6%) 180 (25.2%) 69 (9.7%) 194 (27.2%)

0 (0.0%) 0 (0.0%) 34 (4.8%) 0 (0.0%)

30 (4.2%) 26 (3.6%) 81 (11.4%) 30 (4.2%)

230 (32.3%) 212 (29.7%) 221 (31.0%) 232 (32.5%)

Wheels

0 (0.0%) 0 (0.0%) 20 (2.8%) 0 (0.0%)

0 (0.0%) 0 (0.0%) 23 (3.2%) 0 (0.0%)

27 (3.8%) 14 (2.0%)13 (1.8%) 29 (4.1%)

7 (1.0%) 17 (2.4%)40 (5.6%) 6 (0.8%)

34 (4.8%) 31 (4.3%) 96 (13.5%) 35 (4.9%)

Walk

3 (0.4%) 2 (0.3%) 18 (2.5%) 0 (0.0%)

1 (0.1%) 0 (0.0%) 70 (9.8%) 0 (0.0%)

0 (0.0%) 0 (0.0%) 35 (4.9%) 0 (0.0%)

275 (38.6%) 276 (38.7%) 96 (13.5%) 279 (39.1%)

279 (39.1%) 278 (39.0%) 219 (30.7%) 279 (39.1%)

Total

71 (10.0%) 58 (8.1%) 95 (13.3%) 66 (9.3%)

245 (34.4%) 252 (35.3%) 210 (29.5%) 248 (34.8%)

28 (3.9%) 14 (2.0%) 97 (13.6%) 29 (4.1%)

369 (51.8%) 379 (53.2%) 311 (43.6%) 372 (52.2%)

713 (100.0%) 703 (98.6%) 713 (100.0%) 715 (100.3%)

  1. Each group of four presents the data in order of Original, ARX, SDV, and SynDiffix. Counts and their corresponding percentages are bold font when the absolute error is greater than 20 or the relative error is greater than 30%. They are italic when the absolute error is greater than 10 or the relative error is greater than 15%.
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