Table 4 t-Closeness anonymous example

(a) Original data of the PARTICIPANT_INFO table

 1

123

25

110000

male

contract dispute

 2

124

29

113000

female

property dispute

 3

125

35

118000

female

property dispute

 4

126

36

122000

male

labor dispute

 5

127

43

124000

male

contract dispute

 6

128

30

113000

female

contract dispute

 7

129

27

115000

male

labor dispute

 8

130

55

125000

male

labor dispute

(b) t-Closeness anonymous data (t = 0.25, k = 2)

 1

Null

2*

11* 

male

contract dispute

 2

Null

2*

11*

female

property dispute

 7

Null

2*

11*

female

labor dispute

 3

Null

[30, 37]

1*

male

property dispute

 4

Null

[30, 37]

1*

male

labor dispute

 6

Null

[30, 37]

1*

female

contract dispute

 5

Null

>  = 38

12*

male

contract dispute

 8

Null

>  = 38

12*

male

labor dispute