As is shown in Figure 9, we have processed Circuit
board and Caree Post board of Shuimu Community
using X-RIME K-core algorithm separately. When
reaching 16-core, Circuit Board still has very high
user number which implies that Circuit board has
community structures with strong cohesion but on
the contrary, when just reaching 7 -core, Career_Post
has very low user number which implies that the
cohesion of the community structures is not strong.