The Hyperedge Event Model

Understand

We introduce the hyperedge event model (HEM)---a generative model for events that can be represented as directed edges with one sender and one or more receivers or one receiver and one or more senders.

• We integrate a dynamic version of the exponential random graph model (ERGM) of edge structure with a survival model for event timing to jointly understand who interacts with whom, and when.
• The HEM offers three innovations with respect to the literature---first, it extends a growing class of dynamic network models to model hyperedges.
• The current state-of-the-art approach to dealing with hyperedges is to inappropriately break them into separate edges/events.