REM beyond dyads: relational hyperevent models for multi-actor interaction networks

Abstract: We introduce relational hyperevent models (RHEM) as a generalization of relational event models to events occurring on hyperedges involving any number of actors. RHEM can specify time-varying event rates for the full space of directed or undirected hyperedges and can be applied to model, among others, meetings, team assembly, team performance, or multi-actor communication. We illustrate the newly proposed model on two empirical hyperevent networks about meetings of government ministers and co-authoring of scientific papers.