In complex networks, the degree distribution of the nodesis known to be non-homogeneous with a heavy tail. Consequently, a small set of nodes (called hubs) are highly connected while the vast majority share few connections with their neighbors. The community structure is another main topological feature of many real-world networks. In these networks, the nodes shared by more than one community are called overlapping nodes. They play an important role in the network dynamics due to their ability to reach multiple communities [1]. In this work [2], our goal is to characterize the relationship between the overlapping nodes and the hubs. Indeed, we suspect that hubs are in the neighborhood of the overlapping nodes. In order to investigate the ubiquity of this property, we perform series of experiments on multiple real-world networks from various origins. The aim of these experiments is to compare the set of neighbors of the overlapping nodes with the set of hubs.
