**Date & Time:** Tuesday, February 25, 2014, 10:00-11:00.

**Venue:** Ramanujan Hall

**Title:** Dense graph limits under respondent-driven sampling

**Speaker:** Siva Athreya, ISI Bangalore

**Abstract:** We consider certain respondent-driven sampling procedures on dense
graphs. We show that if the sequence of the vertex-sets is ergodic then the
limiting graph can be expressed in terms of the original dense graph via a
transformation related to the invariant measure of the ergodic sequence. For
specific sampling procedures, we describe the transformation explicitly. This is
joint work with Adrian Rollin.