we investigate execution time of our approach as shown in Fig. 7, where we present execution time of our approach for different dimensions of clustering coefficient. It is apparent that execution time increases as the clustering coefficient increases, e.g., from 20 sec when clustering coefficient is 0.05 versus 660 sec when clustering coeffient is 1 for DACD-NC, and from 50 sec when clustering coefficient is 0.05 versus 1000 sec when clustering coefficient is 1 for DACD-GC on a computer with an Intel i3 2.4 GHZ CPU, 4 GB DDR3 RAM, and 64 bit MIcrosoft Window 8.1 operating system. the increase in execution time is due to the increase in number of links in a network