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Table 2 The five case-study scenarios and the characteristics of the individual’s daily activities in each scenario

From: Daily activity locations k-anonymity for the evaluation of disclosure risk of individual GPS datasets

Scenario

Travel

Home location

Location A

Location B

Time (h)

Time (h)

Number of potential activity locations

Time (h)

Number of potential activity locations

Time (h)

Number of potential activity locations

S1

1

14

1–50

8

5

1

2

S2

1.80–0

6–24

7

14.40–0

5

1.80–0

2

S3

1

14

7

8

1–50

1

1–50

S4

1

14

7

8.57–0.43

5

0.43–8.57

2

S5

1

10

7

The numbers of other activity locations are changed from 1 to 10, and the time spent at these locations are evenly distributed and ranges from 1.3 to 13 h. The numbers of potential activity locations around other activity locations are all set to 5

S6

1–10

14

7

8–0

5

1–0

2