SOAR, short for SOcial Affiliation graphs via Recursion, is a stochastic model to generate realistic social-affiliation networks. This is based on on the following paper - Social-Affiliation Graphs: Patterns and the SOAR Model. Dhivya Eswaran, Reihaneh Rabbany, Artur Dubrawski, Christos Faloutsos. PKDD 2018.