Uriel Feige, Michal Feldman, Nicole Immorlica, Rani Izsak, Brendan Lucier, Vasilis Syrgkanis. A Unifying Hierarchy of Valuations with Complements and Substitutes. In Blai Bonet, Sven Koenig, editors, Proceedings of the Twenty-Ninth AAAI Conference on Artificial Intelligence, January 25-30, 2015, Austin, Texas, USA. pages 872-878, AAAI Press, 2015. [doi]
Abstract is missing.