RMMDI: A Novel Framework for Role Mining Based on the Multi-Domain Information

Algorithm 1

Permission community detection algorithm (PCDA).

Input: nonnegative matrices , . number of communities , parameters

Output: Service Community Division .

  Initialize , , ,

  While Objective function does not converge and the Number of iterations is less than Threshold do

 Update according to Formula (18)

 Update according to Formula (19)

 Update according to Formula (20)

 Update according to Formula (21)

  end while

  Divide nodes to communities division according to the coefficient matrix

  return