One More Accuracy k-Anonymity Framework for LBS

Algorithm 1

JudgeUser //according to the first case.

 Input:

 ,

 Output: flag

 Begin

 flag = true;

 L = 

 if ( > 0) then //according to formula (7a)

  for (int i = 0; i < L.length; i++)

   ;

   t = s/v(i)

   ;

  if then

   delete u_i;

   flag = false;

   find next user;

   return flag;

 if ( > 0) then //according to formula (7b)

  for (int i = 0; i< L.length; i++)

   ;

   total_s = total_s + s

  if then

   delete u_i;

   flag = false;

   find next user;

   return flag;

 return flag;

 End