@inproceedings{AckermanBeLoSa13,
author = {M. Ackerman and S. Ben-David and D. Loker and S. Sabato},
title = {Clustering Oligarchies},
booktitle = {Proceedings of the International Conference on Artificial Intelligence and Statistics (AISTATS)},
Series = {JMLR Workshop and Conference Proceedings},
	Volume = 31,
	pages = {66--74},
year = {2013}
}