Proposal for a Correction to the Temporal Correlation Coefficient   Calculation for Temporal Networks
  Measuring the topological overlap of two graphs becomes important when assessing the changes between temporally adjacent graphs in a time-evolving network. Current methods depend on the fraction of nodes that have persisting edges. This breaks down when there are nodes with no edges, persisting or otherwise. The following outlines a proposed correction to ensure that correlation metrics have the expected behavior. 
Fiona Pigott, Mauricio Rene Herrera Marin
physics.soc-ph cs.SI