We propose an algorithm termed CDOP to detect communities in the various networks.
In the proposed CDOP algorithm, different values of [gamma] will yield different community structures.
If some nodes cannot provide service, we will select appropriate candidate nodes with the community-constructed CDOP algorithm.
Form the FNS according to the optimal tree and the community derived from the CDOP algorithm.
4, the MIT dataset can be divided into five communities by the CDOP algorithm.
To illustrate the accuracy and effectiveness of the CDOP algorithm, we also compared it with the GN  and k-clique  methods.