Before revision:  Based on the assumption that a node and its nearest neighbors should belong to the same cluster, we devise the neighbor cluster pooling (NCPool)  to select the most informative subset of vertices based on the clustering assignments of nodes and their nearest neighbor .
After revision:  Based on the assumption that a node and its nearest neighbors should belong to the same clustering center, this node is an informative node and this edge can be considered as a cluster-friendly edge. Based on this assumption, the neighbor cluster pooling (NCPool) to select the most informative subset of vertices based on the clustering assignments of nodes and their nearest neighbor .