2020

Unifying Graph Convolutional Neural Networks and Label Propagation

Wang, Hongwei, Leskovec, Jure

Understand

Label Propagation (LPA) and Graph Convolutional Neural Networks (GCN) are both message passing algorithms on graphs.

  • Both solve the task of node classification but LPA propagates node label information across the edges of the graph, while GCN propagates and transforms node feature information.
  • However, while conceptually similar, theoretical relation between LPA and GCN has not yet been investigated.
  • Here we study the relationship between LPA and GCN in terms of two aspects: (1) feature/label smoothing where we analyze how the feature/label of one node is spread over its neighbors; And, (2) feature/label influence of how much the initial feature/label of one node influences the final feature/label of another node.

Reading the bibliography…