2020

Understanding and Resolving Performance Degradation in Graph Convolutional Networks

Zhou, Kuangqi, Dong, Yanfei, Wang, Kaixin et al.

Understand

A Graph Convolutional Network (GCN) stacks several layers and in each layer performs a PROPagation operation (PROP) and a TRANsformation operation (TRAN) for learning node representations over graph-structured data.

  • Though powerful, GCNs tend to suffer performance drop when the model gets deep.
  • Previous works focus on PROPs to study and mitigate this issue, but the role of TRANs is barely investigated.
  • In this work, we study performance degradation of GCNs by experimentally examining how stacking only TRANs or PROPs works.

Reading the bibliography…