Multidomain Fusion Data Privacy Security Framework

Algorithm 1

Constraint inference for unattributed histogram.

Input: [i]: the noise frequency;

Output: : the constraint inference frequency

1 define listB, array[i], flag=flase, start =0, end=0, sum=0, avg=0;

2 for // Line2-13 Judgment whether is a order query sequence

3 if i=0

4  listB ; //add the to listB

5 else

6  listB ;

7   if

8   if flag = false;

9    start = i-1;

10     end = i;

11     flag =!flag;

12    else

13    End = i;

14 Handle(); //The recursive method of the order inference

15 end for

16 Handle() // Lines16-26 the order inference

17 for i∈[start,end]

18  sum=sum+listB.get(i);

19 end for

20 avg = sum/(end – start +1);

21 for i∈[start,end]

22  listB.set(i,avg);

23 end for

24 if start >=1 && listB.get(start-1)>avg;

25  start = start – 1;

26  Handle();

27 ;

28 return the constraint inference frequency ;